A taxonomic revision of Camptacra N.T.Burb. (Asteraceae: Astereae) A.R. Bean Summary Bean, A.R. (2020). A taxonomic revision of Camptacra N.T.Burb. (Asteraceae: Astereae). Austrobaileya 10(4): 564-575. The genus Camptacra N.T.Burb. is taxonomically revised. Four species are recognised, including two newly named: C. perdita A.R.Bean and C. robusta A.R.Bean. A lectotype is chosen for Eurybia gracilis Benth. All species are fully described with notes on distribution (including maps), habitat and proposed conservation status. A key to the identification of all species is provided. Key Words: Asteraceae; Camptacra', Camptacra barbata, Camptacra gracilis; Camptacra perdita; Camptacra robusta; New Guinea flora, Australia flora; new species; identification key; distribution maps A.R. Bean, Queensland Herbarium, Department of Environment and Science, Brisbane Botanic Gardens, Mt Coot-tha Road, Toowong, Queensland 4066, Australia. Email: [email protected]. au Introduction are synonymous. Despite Burbidge’s Camptacra N.T.Burb. is a small genus of comprehensive treatment of Camptacra (and herbaceous or low-shrubby daises. It belongs related genera) and the small size of the genus, to the tribe Astereae, and is most closely related the identification of the constituent taxa has to Vittadinia A.Rich., Peripleura (N.T.Burb.) remained surprisingly difficult. This is partly G.L.Nesom and Tetramolopium Nees because Burbidge’s key to her two recognised (Lowrey et al. 2001). It can be distinguished species is difficult to use - it relies on from these genera by the slender, compressed interpretation of several qualitative characters shallowly-ribbed achenes that are often of the capitulum and involucral bracts, and no maroon or purplish when mature, the smooth other part of the plant is mentioned. Also, it receptacle, and by the frequent presence of a seems likely that intergradation is occurring trifid apex on the leaves. between three species in the genus (the rarely encountered C. perdita is the exception), The genus was described by Burbidge and there appear to be few characters where (1982) with two species, C. brachycomoides discontinuities are evident. The net result has (F.Muell.)N.T.Burb. andC. barbataNTBurb. been general confusion about the identity of These species she distinguished largely on many Camptacra specimens. the morphology of the involucral bracts. The author split C. brachycomoides into three Another complication has been the “forms”, based on the varying indumentum misapplication of the name Olearia arguta of the stems and leaves. var. lanata Benth. in Queensland since the 1990s. This taxon is in fact endemic to the Lander (1987) published some new Northern Territory and Western Australia, combinations after finding that the name and is characterised most easily by the Eurybia gracilis Benth. is referable to dense glandular hairs on the leaves and Camptacra and concluded that C. gracilis peduncles, and the relatively large leaves. (Benth.) Lander and C. brachycomoides The Queensland plants that have gone under this name do not have any glandular hairs, and are merely a particularly hairy form of Camptacra robusta. Their generic status has Accepted for publication 3 February 2020 Bean, Camptacra 565 been confirmed by two molecular studies on Perennial shrubs or herbs, stems ribbed, woolly the phylogeny of Tribe Astereae (Lowrey et hairs frequent, glandular hairs uncommon. al. 2001; Cross et al, 2002). Leaves alternate, sessile, entire or with short lobes, apex usually acute to apiculate, but a Materials and methods minority of leaves with apex trifid; sessile This study is based on an examination of glands uncommon. Peduncles longer than the herbarium specimens at the Queensland leaves, bearing a single capitulum; involucral Herbarium (BRI), as well as material received bracts 3-5-seriate; receptacle convex, on loan from CANB, DNA and MEL. High- smooth, epaleate; all florets fertile. Ray quality images of type specimens from K and florets in 1-2 rows, female, conspicuously W have also been examined and are indicated ligulate; glabrous except for sparse antrorse as i.d.v. (imago digitalis visa). eglandular or glandular hairs near junction of tube and ligule; style 2-branched, not Measurements made on the leaves, stems, conspicuously swollen at base but set into an peduncles and involucral bracts are based on erect nectary disc. Disc florets actinomorphic, dried material. Measurements of floral parts hermaphrodite and fertile, 5-merous, narrowly are based on material preserved in spirit, or funnelform; staminal filaments attached at or reconstituted with boiling water. Dimensions below middle of corolla tube; anther apices are inclusive, i.e. 1-1.7 indicates 1.0-1.7. lanceolate or trullate; stigmatic appendages In the specimen citations, abbreviations linear to ellipsoidal, coarsely papillose. include Mt (Mountain or Mount) and NP Achenes linear, laterally flattened, with 3-7 (National Park). longitudinal ribs. Pappus 1-2-seriate, bristles with pectines only c. 0.025 mm long, scarcely Taxonomy visible at 40* magnification. Camptacra N.T.Burb., Brunonia 5: 11 Four species in northern Australia with one (1982). Type: C. brachycomoides (F.Muell.) extending to Papua New Guinea. N.T.Burb. A key to the species of Camptacra 1 Leaves 4.5-15 mm wide (excluding marginal teeth); capitula 8-12 mm long and 13-21 mm across; marginal floret (including ligule) 10-15 mm long; peduncles 0.8-1.5 mm diameter at midpoint; inner involucral bracts 6-7.5 mm long.4. C. robusta 1. Leaves 1.1-5 mm wide (excluding marginal teeth); capitula 5-8 mm long, 8-14 mm across; marginal floret (including ligule) 5-12 mm long; peduncles 0.4-0.8 mm diameter at midpoint; inner involucral bracts 3.5-6 mm long.2 2 Glandular hairs abundant on outer involucral bracts; corolla lobes of disc floret glandular-hairy.3. C. perdita 2. Glandular hairs absent from involucral bracts; corolla lobes of disc floret glabrous.3 3 Leaves glabrous or sparsely hairy, all leaves with acute apex or a few with trifid apex; terminal part of inner involucral bracts glabrous or with ciliate margins; receptacle 1.3-3.5 mm diameter.2. C. gracilis 3. Leaves sparsely to densely hairy, numerous leaves with trifid apex; cluster of hairs usually present on terminal part of inner involucral bracts (inner surface); receptacle (2.5-) 3-6 mm diameter.1. C. barbata 566 Austrobaileya 10(4): 564-575 (2020) 1. Camptacra barbata N.T.Burb., Brunonia District: Lolworth Creek, N of Charters Towers, 5: 15 (1982). Type: Queensland. Moreton Nov 1985, Jackes 12 (BRI); 2.5 km S of “Doongara”, Mar 1988, Forster PIF3729 & Bolton (BRI); 13 km N District: Dinmore, near Ipswich, 29 October of Burdekin Falls, on Burdekin Falls - Mingela road, 1960, L. Pedley 726 (holo: CANB; iso: BRI). Apr 1990, Jobson 1119 (BRI, CANB, MEL). South Camptacra brachycomoides f. arachnoidea Kennedy District: c. 6 km due SE of Strathmore Station, along road to Collinsville, Mar 2003, Pollock N.T.Burb., Brunonia 5: 14 (1982); C. gracilis ABP1690 & Edginton (BRI); 16.4 km W of Oxenhope f. arachnoidea (N.T.Burb.) Lander, Nuytsia Outstation, May 1991, Neldner 3240 & Thompson (BRI). 6: 61 (1987). Type: Queensland. North Mitchell District: 18 km ENE of Prairie, on Flinders Highway, Mar 1993, Thompson HUG320 & Henderson Kennedy District: Rockingham’s Bay, (BRI). Leichhardt District: Uncle Toms Road, SE of s.dat.,J. Dallachy s.n. (holo: MEL 1004261). Moura, Sep 1999, Bean 15331 (BRI, MEL). Warrego Erect herb to 50 cm high. Stems glabrous District: Morven, Apr 1936, Blake 10985 (BRI). Maranoa District: Beside airstrip, Mt Moffatt NP, or sparsely to densely woolly-hairy. Leaves NW of Injune, Oct 1998, Bean 14285 (BRI); 24 km NE of linear, 18-55 mm long, 1.4-5 mm wide Roma, Apr 2003, Baumgartner 3371-6 (BRI). Burnett excluding marginal teeth, glabrous or woolly, District: c. 8 km NW of ‘Rawbelle’, W of Monto, Jun 1996, Bean 10383 (BRI, MEL); 2 km S of Derrabungy glands absent; apex acute, apiculate or Creek Bridge, S of Mundubbera, Nov 1997, Bean 12590 rarely to frequently trifid; base narrowly to (BRI, MEL); Monto - Mt Perry Road, 0.5 km W of Yarrol broadly cuneate; margins entire or with a few Road turnoff. Mar 2013, Bean 32112 (BRI, CANB, MEL, teeth up to 2 mm long, more or less evenly US). Darling Downs District: Road to Kupunn, 1 km distributed; midrib obvious and sometimes from the Moonie Highway turnoff, 16 km SW of Dalby, Oct 1996, Lowrey 1751 (BRI); Jondaryan cemetery, Apr 2 additional parallel veins evident. Capitula 1994, Fensham 1688 (BRI, MEL). Moreton District: 5-8 mm long, 8-14 mm diameter. Peduncles Grounds of TAFE college, Byrne Street, Bundamba, Oct 5-12 cm long, 0.4-0.8 mm wide at midpoint, 2007, Bird s.n. (BRI [AQ745021]); Boonah, S of Ipswich, with sparse woolly hairs confined to upper Nov 1934, Michael 2093 (BRI). New South Wales. 3 miles [5 km] E of Inverell, Jun 1955, Jessup & Gray 2800 part or densely woolly throughout. Involucral (CANB); 1 mile [1.6 km] N of Howell, Jun 1955, Jessup bracts 24-36, graduated in length; outer & Gray 2784 (CANB); Travelling Stock Route, 5.5 km bracts narrowly ovate, 1.6-3.1 mm long, N of Warialda on road to Yetman, Oct 1993, Prober s.n. glabrous or with sparse woolly hairs on outer (CANB 00500874). surface, apex acute; inner bracts narrowly Distribution and habitat: Camptacra lanceolate, 3.5-5.5 mm long, usually with barbata is widely distributed in the eastern dense tuft of hairs near apex, apex acute to half of Queensland, and in the Victoria River obtuse. Receptacle (2.5-) 3-6 mm across. district of Northern Territory. It also extends Ray florets 25-48, corolla tube 2.2-3.5 mm into northern New South Wales, west of the long, glabrous except for sparse antrorse Great Dividing Range (Map 1). It is found eglandular hairs near junction of tube and almost exclusively on plains in grassland or ligule; tube + ligules 5-12 mm long, white, open woodland, with heavy dark-brown to apex obtuse or minutely notched. Disc florets black cracking clay soil. 30-68, yellow, corolla tube 3.3-4.2 mm long, glabrous except for sparse antrorse hairs near Phenology: Flowers and fruits have been the midpoint; corolla lobes 0.4-0.6 mm long, recorded for every month of the year. deltate, glabrous. Achenes 2.2-3.1 mm long, Affinities: Camptacra barbata appears to be maroon or purplish when mature, glabrous closely related to C. gracilis (see Affinities or with sparse antrorse hairs on upper half. under that species). Pappus bristles 24-30 in number, each 2.6- 4.5 mm long. Notes: Burbidge (1982) distinguished Camptacra barbata from C. brachycomoides Additional selected specimens examined: Northern (= C. gracilis) by the ‘hemispheric’ mature Territory. Daguragu Land Trust area, S of Gill Creek, c. 51 km NW of Kalkarindji, Mar 2012, Cowie 12973 capitulum (vs. campanulate for C. gracilis) (DNA); Mt Sanford, Threeways holding paddock, Aug and the ‘subglobose budding heads’ (vs. 2000, Brock 118 (CANB, DNA). Queensland. Cook ‘campanulate bud’ for C. gracilis); the sub- District: Metal Hills section, Chillagoe - Mungana apical colouration on the inner involucral Cave NP, Jan 2005, Little LL36 (BRI). North Kennedy Bean, Camptacra 567 bracts (vs. uniformly coloured for C. gracilis); mm long, 9-11 mm diameter. Peduncles 4.5- and the woolly hairs on the inner face of the 14 cm long, 0.4-0.6 mm wide at midpoint, involucral bracts at the distal end (vs. woolly glabrous throughout or with sparse woolly hairs absent for C. gracilis). I cannot discern hairs on upper part. Involucral bracts 26-40, any consistent difference in the capitulum graduated in length, outer bracts narrowly shape between specimens determined by ovate, 1.8-3.3 mm long, glabrous or with Burbidge as C. barbata or C. brachycomoides, sparse woolly hairs on outer surface, apex and all Camptacra specimens have subglobose acute to acuminate; inner bracts narrowly budding heads at the earliest stage. The sub- lanceolate, 3.5-4.5 mm long, glabrous apical colouration of the bracts is apparent throughout or with ciliate margins on upper on some specimens that Burbidge labelled C. part, apex acute to acuminate. Receptacle barbata (particularly those from far south¬ 1.3-3.5 mm across. Ray florets 20-42, corolla eastern Qld), but not on others. The ‘woolly tube 2-2.7 mm long, glabrous except for hairs on the inner surface of the bracts’ sparse antrorse eglandular hairs near junction character does appear to be a useful character of tube and ligule; tube + ligules 6-11 mm for C. barbata, though not universally present. long, white and becoming pink with age, apex obtuse or minutely notched. Disc florets Conservation status: Least Concern (IUCN 28-66, yellow, corolla tube 3.2-4.2 mm long, 2012). While the habitat of this species has glabrous except for sparse antrorse hairs near undoubtedly been reduced over the last the midpoint; corolla lobes 0.5-0.65 mm long, century, it is a common species with a very deltate, glabrous. Achenes 2.3-37 mm long, large geographical range, occurring in maroon or purplish when mature, glabrous numerous conservation reserves. or with sparse antrorse hairs on upper half. 2. Camptacra gracilis (Benth.) Lander, Pappus bristles 24-30 in number, each 2.6- Nuytsia 6: 61 (1987); Eurybia gracilis Benth., 4.2 mm long. Enum. Pl. [Endlicher] 59 (1837); Camptacra Additional selected specimens examined: Northern gracilis (Benth.) Lander f. gracilis, Nuytsia Territory. Emu Springs, central Arnhem Land, Sep 6: 61 (1987). Type: Nova Hollandia, s.dat., 1999, Cowie 8446 & Dunlop (BRI); c. 10 km N of the F. Bauer s.n. (lecto: W 0047219 i.d.v. [here Mainoru River towards Bullman Station from Mainoru Station, May 1974, Pullen 9373 (CANB); 100 km SE of designated]; probable isolecto: K 000890338 Nhulunbuy, Arnhem Land, Sep 1985, Wightman 2239 i.d.v). (CANB). Queensland. Cook District: Brooklyn, near Rifle Creek/Luster Creek junction, Jan 1996, Godwin Aster brachycomoides F.Muell., Fragm. MGC4201 & Russell (BRI); Blackbraes NP, Dec 2010, 5: 86 (1865); Vittadinia brachycomoides McDonald KRM10250 & Jensen (BRI, CANB); 1 km (F.Muell.) Benth., FI. Austral. 3: 490 (1867); N of Lakeland beside the Cooktown Road, Feb 2001, Camptacra brachycomoides (F.Muell.) Wannan 2162 (BRI); 16.5 km N of Mareeba Post Office, N.T.Burb., Brunonia 5: 12 (1982); Camptacra on Mt Molloy Road, Dec 1993, Neldner 4126 & Milne (BRI). North Kennedy District: 40 miles [64 km] S brachycomoides f. brachycomoides, of Ayr, on W bank of Burdekin River, Feb 1963, Selon N.T.Burb., Brunonia 5: 13 (1982). Type: 27 (BRI); “Etonvale”, WSW of Bowen, May 1992, Bean Arnhem’s Land, 14 July 1856, F. Mueller s.n. 4543 (BRI); near Gumlu, Oct 1950, Blake 18633 (BRI); (lecto: MEL 1004273, fide Burbidge (1982: 50 km S of Mt Garnet, May 1999, Wannan 1235 & Jago (BRI); Wambiana Station, 70 km S of Charters Towers, 13); isolecto: K 000890337 i.d.v). Jun 1998, OReagain 729 (BRI). South Kennedy Erect herb to 40 cm high. Stems glabrous District: Red Hill Station, 79.5 km SSW of Charters Towers, Apr 2006, Thompson CHA705 & Wilson or sometimes sparsely woolly-hairy. Leaves (AD, BRI). Port Curtis District: Broad Sound, Sep linear, 26-50 mm long, 1.1-2.5 mm wide 1802, Brown s.n. (CANB); Marlborough serpentinite excluding marginal teeth, glabrous, glands landscape. May 2010, Hendry 744/7 (BRI); 2 km NW absent; apex acute or occasionally trifid; base of Seahound Hard boat ramp, Shoalwater Bay Training area, N of Yeppoon, Feb 2012, Bean 31609 & Mathieson narrowly cuneate to attenuate; margins entire (BRI, L, MEL, NY, P); 7.5 km from Bruce Highway at or with a few teeth up to 0.7 mm long, more Bajool, towards Port Alma, Apr 2012, Bean 32009 (BRI, or less evenly distributed; midrib obvious but CANB, DNA, E, MO, W); The Springs, Shoalwater Bay all other venation obscure. Capitula 5.5-7 Military Area, N of Rockhampton, May 2014, Halford QM1496 (BRI); S end of Duck Lagoon, South Percy 568 Austrobaileya 10(4): 564-575 (2020) Island, Mar 1906, Tryon s.n. (BRI [AQ246175]); Mt Sound” and labelled Eurybiopsis macrorrhiza Bonnie Doon, Rockhampton - Marlborough area, Jan DC., and both are very similar to some recent 1989, Specht 210 & Reeves (BRI); Old Byfield Road, collections from the Shoalwater Bay Training near Pine Mountain, May 1996, Plumb JP4 (BRI); Area in Queensland (cited above). Clinton Lowlands, Freshwater sector, Shoalwater Bay Training Area, N of Yeppoon, Apr 2016, Halford Conservation status: Least Concern (IUCN QM2078 & Mathieson (B, BM, BRI, CANB, DNA, HO, NSW, PRE, US). 2012). While the habitat of this species has been reduced over the last century, it is a Distribution and habitat: Camptacra common species with a large geographical gracilis occurs in the north-east of the range. It occurs in at least two National Parks. Northern Territory (eastern Arnhem Land) and in Queensland, where it extends from 3. Camptacra perdita A.R.Bean sp. nov. Lakeland Downs to south of Gladstone, and Differing from C. barbata by the white usually less than 200 km from the coast (Map densely-woolly hairy stems, the glandular- 2). In coastal areas, it inhabits marine plains hairy involucral bracts, the consistently in association with, or near to, Sporobolus unlobed leaf apex, and the smaller capitula virginicus (L.) Kunth. Elsewhere it grows in and florets. Typus: Queensland. Darling ephemeral swamps, in heavy soil with native Downs District: Oakey rail line, southern Dichanthium grassland, or in mixed eucalypt side of Oakey, Cutella Road, 22 November woodland. It has also been recorded from 2001,1.L. Menkins ILM0074 (holo: BRI; iso: soils derived from serpentinite. DNA). Phenology: Flowers are recorded from Erect herb to 35 cm high. Stems very densely October to June; fruits are recorded from woolly-hairy, snowy white. Leaves narrowly- November to May. elliptical to oblanceolate, 14-24 mm long, 2-5 mm wide, sparsely woolly-hairy throughout, Typification: The sheet at W is chosen as the glands absent; apex acute, never trifid; base lectotype for Eurybia gracilis Benth. as it is narrowly cuneate to attenuate; margins the only known Bauer specimen matching occasionally entire but usually with 2-4 the protologue that was seen by Bentham pairs of teeth up to 1.2 mm long, more or before the date of publication. The specimen less evenly distributed; midrib obvious but at K was received in 1854, and has somewhat all other venation obscure. Capitula 4-5.5 broader leaves, but is probably part of the mm long, 7-9.5 mm diameter. Peduncles same gathering. 3-7 cm long, 0.4-0.6 mm wide at midpoint, Affinities: Camptacra gracilis is closely sparsely woolly-hairy throughout, and with related to C. barbata, and some collections dense stalked glandular hairs on upper part. are difficult to place. C. gracilis lacks the tuft Involucral bracts 30-36, graduated in length, of hairs on the apex of the involucral bracts, outer bracts narrowly ovate, 1.3-1.8 mm long, and it generally has narrower leaves, glabrous with dense glandular hairs on outer surface, leaves and stems, a smaller receptacle, and apex acute to obtuse; inner bracts narrowly few or no leaves with a trifid apex. elliptic, 27-3.4 mm long, sparsely glandular- hairy throughout and with ciliate margins on Notes: From the date of collection of upper part, apex acute to obtuse. Receptacle Aster brachycomoides, it can be inferred 1-1.5 mm across. Ray florets 20-30, corolla that Mueller collected it near present-day tube 1.3-1.5 mm long, glabrous except for Mataranka, at the south-western extent of the sparse antrorse stalked glandular hairs near range of C. gracilis in the Northern Territory. junction of tube and ligule; tube + ligules 4-6 Specimens collected further south and west mm long, white to light mauve, apex obtuse or are a closer match for C. barbata. minutely notched. Disc florets 19-29, yellow, It is not known where Ferdinand Bauer corolla tube 2.9-3.3 mm long, glabrous; collected the type material for Eurybia corolla lobes c. 0.6 mm long, deltate, with gracilis, but the type matches material stalked glandular hairs on outer surface. collected by Robert Brown from “Broad Achenes 2.5-27 mm long, brown when Bean, Camptacra 569 mature, with moderately dense antrorse hairs Etymology: From the Latinperditus, meaning throughout, and with scattered glandular Tost’ or ‘abandoned’. This alludes to the hairs. Pappus bristles 23-28 in number, each species co-existing with, but being vastly 27-3.5 mm long. Fig. 1. outnumbered by Camptacra barbata. Additional specimens examined: Queensland. 4. Camptacra robusta A.R.Bean sp. nov. Maranoa District: Bungegorgoral Stock Route, NW With affinity to C. barbata, but differing by of Howard, Oct 2017, Fensham 6812 (BRI); 7 km W of the longer and broader capitula, the wider St George, Sep 1973, Trapnell & Williams 287 (BRI). Darling Downs District: Warrego Highway near leaves, the thicker peduncles and the longer Oakey, Mar 2013, Fensham 6344 (BRI). New South involucral bracts. Typus: Queensland. North Wales. North Western Plains: Kirramingly Nature Kennedy District: Kennedy Highway, c. Reserve, c. 30 km SSW of Moree, 2.5 km WSW of 12 km W of Ravenshoe, 11 December 2000, Kirramingly Homestead, May 2010, Copeland 4440 (BRI; CANB, K, MEL, NSW, PERTH, all n.v.) R.L. Jago 5792 & B. Wannan (holo: BRI; iso: DNA, US). Distribution and habitat: Camptacraperdita is known from four collections in southern Vittadinia brachycomoides var. latifolia Queensland (two from near Oakey, one near Benth., FI. Austral. 3: 490 (1867). Types: St George and one near Roma), and from a [Queensland. Cook District:] Albany Island, single location in New South Wales (Map 2). Cape York, 25 October 1849, J. Macgillivray It is recorded growing in grassland on heavy s.n. (syn: K 000890335 i.d.v)', [Queensland.] black soil on alluvium, at least two sites Rockingham Bay, s.dat., J. Dallachy s.n. (syn: dominated by Dichanthium sericeum (R.Br.) K 000890334 i.d.v). A.Camus. Camptacra brachycomoides f. lanata Phenology: Flowers and fruits are recorded N. T.Burb., Brunonia 5: 14 (1982); Camptacra for March, May, September, October and gracilis f. lanata (N.T.Burb.) Lander, Nuytsia November. 6: 61 (1987). Type: Queensland. Burke District: Near source of Poison Creek, c. Affinities: Camptacra perdita differs from 90 miles [145 km] N of Hughenden, 11 April its closest relative C. barbata by the white 1935, S.T. Blake 8545 (holo: BRI). densely-woolly hairy stems, the glandular- hairy involucral bracts, the consistently [Olearia arguta var. lanata, auct. non Benth., unlobed leaf apex, and the capitula 4-5.5 x Queensland populations; Britten (1901: 249)]. 7-9.5 mm (5-8 x 8-14 mm for C. barbata), Illustration: Britten (1901: t. 153) [as Olearia and the corolla tube of the disc florets 2.9-3.3 arguta]. mm long (3.3-4.2 mm long for C. barbata). Erect or procumbent herb or shrub to 50 Notes: This is the only species of Camptacra cm high. Stems sparsely to densely woolly- with glandular hairs; they are most obvious hairy. Leaves linear to narrowly-elliptic, on the involucral bracts and upper part of the 22-55 mm long, 4.5-12 mm wide excluding peduncle, but are also found on the corolla marginal teeth, sparsely to densely woolly, lobes of the disc florets and on the achenes. glands absent; apex acute, apiculate, or rarely The contrast between the densely hairy to frequently trifid; base broadly cuneate snowy-white stems and the sparsely-hairy to obtuse; margins entire or with a few green leaves is also diagnostic. teeth up to 4 mm long, more or less evenly Conservation status: The habitat of distributed; midrib and 2 additional parallel Camptacra perdita (grassland on fertile veins prominent. Capitula 8-12 mm long, cracking clays) has been extensively utilised 13-21 mm diameter. Peduncles 5-25 cm long, for cropping and grazing for over a century, O. 8-1.5 mm wide at midpoint, sparsely to and the few collections suggest that it is densely woolly throughout. Involucral bracts threatened. A status of Endangered (IUCN 28-36, graduated in length; outer bracts 2012) is recommended, criterion B2ab(iii). narrowly ovate, 1.8-4 mm long, with sparse woolly hairs on outer surface, apex acute; 570 Austrobaileya 10(4): 564-575 (2020) . Fig. 1 Camptacra perdita. A. whole plant *0.5. B. flowering capitulum, lateral view *5. C. uppermost section of peduncle, showing glandular hairs *32. D. ligulate floret *16. E. disc floret, pappus and immature achene *16. F. mature achene with pappus xl6. All from Menkins ILM0074 (BRI). Del. W. Smith. Bean, Camptacra 571 inner bracts narrowly lanceolate, 6-7.5 mm Distribution and habitat: Camptacra long, glabrous or shortly ciliate, apex acute robusta occurs in northern Queensland, from to obtuse. Receptacle 4-6.2 mm across. Ray Springsure to Cape York, and in Papua New florets 36-60, corolla tube 3-3.5 mm long, Guinea (Map 3). In Queensland, it prefers glabrous except for sparse antrorse eglandular basaltic plains with red to brown clayey soil, hairs near junction of tube and ligule; tube + but also occurs on plains with red sandy ligules 10-15 mm long, white to lilac, apex soils, and on sandstone slopes, all in eucalypt obtuse or minutely notched. Disc florets woodland. For Papua New Guinea, the habitat 52-78, yellow, corolla tube 4.2-4.6 mm long, is merely stated to be “grassland”. glabrous except for sparse antrorse hairs near Phenology: Flowers and fruits have been the midpoint; corolla lobes 0.4-0.6 mm long, recorded for every month of the year. deltate, glabrous. Achenes 2.9-4 mm long, maroon or purplish when mature, glabrous Affinities: Camptacra robusta appears closest or with sparse antrorse hairs on upper half. to C. barbata, but differs by the capitula 8-12 Pappus bristles 25-34 in number, each 4.7- mm long and 13-21 mm across (5-8 mm 5.2 mm long. Fig. 2. long and 8-14 mm across for C. barbata), the leaves 4.5-12 mm wide (1.4-5 mm wide for Additional selected specimens examined: Papua C. barbata), the peduncles 0.8-1.5 mm wide New Guinea. Morobe Province: Karmanuntina River valley, near Habaya, Goroka subdistrict, Sep at midpoint (0.4-0.8 mm wide for C. barbata), 1957, Robbins 916 (CANB). Central Province: and the inner involucral bracts 6-7.5 mm long Astrolabe Range, Jul 1918, White 245 (BRI); Aiyura, (3.5-5.5 mm long for C. barbata). Oct 1944, Smith NGF1147 (BRI). Queensland. Cook District: Piccaninny Plain turnoff near Bamaga - Notes: Camptacra specimens from Papua Weipa Road junction, Oct 2008, McDonald KRM8005 New Guinea are here tentatively included & Winter (BRI); Lizard Island, May 1975, Byrnes 3171 under C. robusta, based on the relatively long (BRI); Undara NP, Yaramulla ranger base, Dec 2004, McDonald KRM3234 (BRI); c. 1 km S of Bailey Point, disc florets and ligules on the most mature Jun 2003, Jago 6499 (BRI); c. 30 miles [48 km] W of specimen (Robbins 916). However, in the few Cardwell, Nov 1967, Boyland 573 (BRI); 4 km S of Papuan specimens available, there is much Mareeba, on the Kennedy Highway, Dec 1983, Clarkson variation in leaf size, capitulum size and 5073 (BRI, CANB, CNS, DNA); 7.1 km by road W of Petford, Jan 2008, McDonald KRM7126 & Ford (BRI); pappus length. More collections are needed Newcastle Range, 29.5 km by road E of Forsayth, Feb before a reliable taxonomic assessment can be 2013, McDonald KRM13816 (BRI). Burke District: made. Blackbraes NP, Mar 2003, Kemp TH7040 & Cutt (BRI). North Kennedy District: Herberton, s.dat., Kenny Some Queensland specimens of s.n. (BRI [AQ246199]); 116 km from Kennedy on Mt Camptacra robusta have been misidentified Garnet Road, Jan 1992, Forster PIF9512 (BRI, MEL); as Olearia arguta Benth. The first such Mt Fox crater, Seaview Range, Apr 1985, Rodd & Hardie 4461 (BRI, NSW); c. 0.6 km from junction of Kennedy instance was by Britten (1901), who identified Highway and Gulf Development Road, towards Mt a Banks & Solander collection from Surprise, Dec 2004, McDonald KRM3151 et al. (BRI, Endeavour River as Shawia arguta (Benth.) NSW); End of Deception Creek Road, Mt Zero/Taravale Britten, a synonym of O. arguta. Another Wildlife Sanctuary, Dec 2011, Jensen 2539 (BRI); 2 km specimen {Rodd & Hardie 446f cited N of Burra microwave tower, Feb 1994, Bean 7491 & Forster (BRI); Mt Abbot, 50 km W of Bowen, Aug 1992, above) was identified by N. Lander in 1990 Bean 4852 (BRI). South Kennedy District: ‘Glen as O. arguta, and subsequently, numerous Innes’, NW of Alpha, Jul 2003, Fensham 4888 (BRI); specimens at BRI were named O. arguta c. 35 km SE of Lake Buchanan, Jun 1998, Thompson or O. arguta var. lanata Benth. Molecular BUC2084 (BRI). Mitchell District: Moorinya NP, 17.6 km NW of ranger station. May 2006, Thompson studies have confirmed that the Queensland TAN449 & Wilson (BRI); 20 km SE of Muttaburra taxon is correctly placed in Camptacra (see on Aramac Road, Apr 2012, Silcock JLS1177 (BRI). Introduction). Some specimens of this species Leichhardt District: Near Station Creek, 0.5 km W have very dense woolly indumentum on the of Arcturus Downs, E of Springsure, Oct 1998, Bean leaves and stems. 13992 (BRI); Peak Downs, Jun 1951, Everist 4404 (BRI). 572 Austrobcdleya 10(4): 564-575 (2020) Fig. 2. Camptacra robusta. A. flowering branchlet x0.5. B. flowering capitulum, lateral view M. C. a leaf from the densely hairy form x4. D. disc floret xl2. E. ligulate floret xl2. F. mature achene with pappus x6. A from McDonald KRM3234 (BRI); B,C,E from Jensen 2539 (BRI); D from Forster PIF9512 (BRI); F from Thompson BUC2084 (BRI). Scale bar = 10 mm at xl magnification. Del. N. Crosswell. Bean, Camptacra 573 Conservation status: Least Concern (IUCN References 2012). The habitat of this species has been Britten, J. (1901). In J. Banks & D.C. Solander, reduced over the last century; however, it is Illustrations of Australian plants collected a common species with a large geographical in 1770 during Captain Cook’s voyage round range, and is present in at least ten National the world in H.M.S. Endeavour 2: 49, t. 153. Trustees of the British Museum: London. Parks. Burbidge, N.T. (1982). A revision of Vittadinia A. Etymology: From the Latin robustus, meaning Rich. (Compositae) together with reinstatement solid or strong; this refers to the sturdy of Eurybiopsis DC. and description of a new and vigorous appearance of the species in genus, Camptacra. Brunonia 5: 1-72. comparison with other species of Camptacra. Cross, E.W., Quinn, C.J. & Wagstaff, S.J. (2002). Molecular evidence for the polyphyly of Olearia Acknowledgements (Astereae: Asteraceae). Plant Systematics and I thank the Directors of DNA, CANB and Evolution 235: 99-120. MEL for sending their holdings of Camptacra Iucn (2012). IUCN Red List Categories and Criteria, on loan. I am also grateful to Will Smith version 3.1, 2nd ed. International Union for the for the illustrations of C. perdita and Nicole Conservation of Nature: Gland. https://portals. iucn.org/library/efiles/documents/RL-2001- Crosswell for the illustrations of C. robusta. 001-2nd.pdf, accessed 20 January 2019. Peter Jobson made numerous helpful suggestions. I thank Teghan Collingwood Lander, N.S. (1987). New combinations in Camptacra N.Burb. (Asteraceae: Astereae). Nuytsia 6: 61. for her efforts to locate the New South Wales specimen of C. perdita at BRI. Lowrey, T.K., Quinn, C.J., Taylor, R.K., Chan, R., Kimball, R.T. & De Nardi, J.C. (2001). Molecular and morphological reassessment of relationships within the Vittadinia group of Astereae (Asteraceae). American Journal of Botany 88: 1279-1289. Map 1. Distribution of Camptacra barbata