Selbyana 20(1): 16-29. 1999. NEW TAXA IN BEGONIA (BEGONIACEAE) FROM BRAZIL STEPHEN F. SMITH* AND DIETER C. W ASSHAUSEN Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560 USA. ABSTRACT. Ten new Brazilian taxa of Begonia: B. cacauicola, B. euryphylla, B. matogrossensis, B. mattos silvae, B. pinheironis, B. pluvialis, B. polygonifolia A. DC. var. differens, B. russelliana, B. serranegrae, and B. windischii are described, illustrated, and compared to neighboring taxa from an unpublished key of Brazilian Begonia. Begonia oxyphylla A. DC. is made a variety of B. arborescens Raddi. Key words: Begonia, Begoniaceae, Brazil INTRODUCTION few-flowered, 2-dichotomous, 2 (in type): 1) younger, broad-peduncled one 2 cm long distal While preparing Begoniaceae, Part I: Illus to basal bifurcation, 2) older, thin-peduncled one trated Key (L.B. Smith et al. 1986), Lyman possibly 4 cm long distal to scar(?) of basal bi Smith discovered a number of undescribed spe furcation; bracts at base of inflorescence paired, cies of Begonia in Brazil. The following places opposite, ovate, 7-8 X 4 mm, membranaceous, these novelties on record for the convenience of absent (deciduous?) in older inflorescence. Sta other taxonomists prior to publication of a com minate pedicel 5 mm; tepals 4, white, the outer plete treatment of the genus for Brazil. In ad suborbicular, 9-8 X 7-6 mm, apiculate, the in dition, Begonia oxyphylla A. DC. is made a vac ner narrow 6 X 1 mm; stamens ca. 15, yellow, riety of B. arborescens Raddi. on a low torus; anthers oblong; connective tissue exserted in an oblong obtuse blade. Pistillate pedicel 2 mm; bracteoles persistent, 3-5 mm NEW TAXA long; tepals white, 4 mm; style and stigma not Begonia cacauicola L.B. Sm. ex S.H Sm. & seen. Capsules young 5 X 2 mm, covered with Wassh., sp. nov. TYPE: Brazil. Bahia: Una, tiny simple strigose white hairs; wings similarly Fazenda Sao Bento, mata Umida, plantac;ao haired, 3: 1 major, 3 mm wide of capsule axis; de cacau, 18 May 1965, R.P. Belem & M. 2 minor, 2 mm wide. Magalhaes 1002 (Holotype: US; Isotype: Begonia euryphyUa L.B. Sm. ex S.H Sm. & CEPEC). FIGURE 1. Wassh., sp. nov. TYPE: Brazil. Bahia: Ita A B. sylvatica Meissn. ex A. DC. cui affinis, folior pebi, Facenda Ventania, 16 Aug. 1971, T.S. urn laminis ellipticis, infiorescentia 2-dichotomica dif dos Santos 1842 (Holotype: US; Isotype: fert, et proxima B. alchemilloides Meissn. ex A. DC. CEPEC). FIGURE 2. praeter quad petiolis longioris, bracteis longioris, an gustatis, glabris et asymmetrice foliorum laminis api A B. neocomensium A. DC. cui affinis, caulis fo culatis. liorum laminis foliorum stipulis petiolis et pedunculo grosse plus robustis, foliorum laminis plus acutus Plant herbaceous, delicate, membranaceous, quam rotundatus et intemodia brevis differt. glabrous, 40 cm tall. Stem erect, > 10 cm, 6-8 Plant herbaceous, perennial, rhizomatous? 30 mm in greatest width, red (as are roots), only 2- cm tall, tan-brown strigose except on the flow 3 leaved (in type); internodes 1.5 cm between ers. Stem short, erect; internodes 1 cm. Stipules extant leaves, 2.5 cm further down stem between imbricate, persistent, firm, elliptic, 2-3 cm long, leaf scars. Stipules ovate, 10-15 X 6 mm, mem glabrous on distal side, strigose on proximal branaceous, reddish-green with darker midvein. side, in age twisted, tubular with distal, glabrous Petioles 8-11 cm long, red. Blades alternate, side external (curled retrorsely). Petioles fascic green, thin, membranaceous, elliptic, with main ulate from the top of the stem, 2 (in holotype) vein at an angle with petiole, apiculate at tip of 16 and 10.5 cm long, densely strigose. Blades 5-9 cm main vein, shallowly cordate at base, 9- deeply cordate with overlapping lobes, charta 13 cm wide, evenly and sparsely vestite through ceous, nearly membranaceous, suborbicular, 28 out with minute dark red glands, with finely du cm wide, 25 cm basal lobe to top, sinuate-Iobate plicate-dentate margin. Peduncles 11-13 cm with acute projections on all sides, serrulate, the long, 1 and 3 mm in diameter. Inflorescences surface slightly bullate with reticulate veins and veinlets forming cells, the "cells" raised below * Corresponding author. with longer hairs arising prominently from vein- 16 SMITH & WASSHAUSEN: NEW BEGONIAS 17 FIGURE L Holotype of Begonia cacauicola L.B. Sm. ex S.E Sm. & Wassh. (Belem & Magalhiies 1002. US). lets, hardly raised above with shorter hairs large tissue exserted, rounded. Pistillate flowers small, ly arising from within the "cells." Peduncle 40 3.5 mm long with capsule, usually located at the em long, exceeding the leaves, less strigose than base of 1 or 2 staminate flowers; pedicel 1 mm the petioles. Inflorescence laxly 4-5 times di long; tepals 1.5 mm long. Capsule with a single chotomous, many-flowered, staminate and pis fiabellate wing: 6 mm deep X 5 mm wide (prob tillate flowers contemporaneous; bracts at basal ably not funy grown). dichotomy membranaceous, sparingly strigose, Begonia matogrossensis L.B. Sm. ex S.F. Sm. possibly deciduous; bracteoles 2 mm, hardly ev & Wassh., sp. nov. TYPE: Brazil. Mato ident, narrow, possibly deciduous. Staminate Grosso: Rio Jurena, Cachoeira Sao Loren pedicels slender, up to 10 mm long; tepals white, ~o, plantas sobre rochas secas entre fendas 4, the outer pair suborbicular (4-5 X 4 mm), the de pedras, 22 May 1977, N.A. Rosa & M.R. inner narrowly elliptic (2-3 X 1 mm); stamens Santos 1984 (Holotype: NY; Isotype: MG). few (ca. 25), oblong; anthers yellow, connective (Section Ruizpavonia? ). FIGURE 3. 18 SELBYANA Volume 20(1) 1999 FIGURE 2. Holotype of Begonia euryphylla L.B. Sm. ex S.E Sm. & Wassh. (dos Santos 1842, US). A B. holtonis A. DC. cui affinis, sed inflorescentia often dimidiate basally (offset 2-6 mm), ciliate bis dichotoma, foliorum laminis suboblongis, stipulis serrulate along margin, elsewhere glabrous, up persistentibus differt. per surface microscopically covered in ridges Plant 1 m high, saxicolous, in rock fissures. and pits, subsurface tiled with flat circular light Stem slender, < 5 mm wide for upper 40 cm, colored idioblasts (cystotyles & cystospheres glabrous, red (dry); internode distance 3 cm nar swellings on surface of cells), both surfaces with rowing to 2 cm distally. Stipules persistent, gla large wartlike (raised, usually circular, often brous, ovate, 10-12 mm long, 5-6 mm wide, open centrally especially on ventrum) spots on thin, with midvein darkest in color, with soft holotype due to fungus or mechanical injury. cuspidate tip. Petioles short, 3-10 mm long. Peduncle 1, apparently terminal, 2 cm long from Blades subcoriaceous, 8-9.5 cm long, 2.5-3.5 distalmost leaf scar to basal bifurcation. Inflo cm wide, broadly rounded and apiculate distally, rescence twice dichotomous, 4 cm high from tip SMITH & WASSHAUSEN: NEW BEGONIAS 19 FIGURE 3. Holotype of Begonia matogrossensis L.B. Sm. ex S.H Sm. & Wassh. (Rosa & Santos 1984, NY). to basal bifurcation and 5.5 cm wide, glabrous; maraju, Fazenda Pau-brasil, ca. 5 km ao bracts deciduous, the upper bracteoles elliptic, NW de Itamaraju, 17°1 'S, 39°33'W, regiao setose-apiculate, entire, 8 mm long, up to 4 mm de mata higr6fila SuI Baiana, planta~ao de wide. Staminate pedicels 8 mm long; tepals 4, cacau, afioramento de rochas na area, 30 the outer very broadly ovate with a blunt acu Oct. 1979, L.A. Mattos Silva & H.S. Brito min, 10 mm X 8 mm, cordate at base, white, 660 (Holotype: US; Isotype: CEPEC). the inner, narrow 8 X 3 mm; stamens yellow, FIGURE 4. numerous (>25); filaments very long and slen A B. sylvatica Meissn., cui affinis, sed foliorum lam der; anthers short, obovoid. Pistillate flowers ina latissime elliptica imbricato-cordata, capsulae ala and capsules absent. majore latiore quam alta differt. Begonia mattos-silvae L.B. Sm. ex S.R Sm. & Plant herbaceous, perennial, 60 cm high, gla Wassh., sp. nov. TYPE: Brazil. Bahia: Ita- brous except for the upper side of the leaf-blade. 20 SELBYANA Volume 20(1) 1999 FIGURE 4. Holotype of Begonia mattos-silvae L.B. Sm. ex S.p. Sm. & Wassh. (Mattos Silva & Brito 660, US) Stem with distinct internodes 2-4 cm between gins entire with shallow lobes. Peduncle 25-40 mature leaves. Stipules ovate, apparently decid cm long. Inflorescence 5-6 dichotomous, lax; uous, 1.75-2.5 cm long, membranaceous, with bracts dark, membranous, small, 1 X 0.25 mm, long tapered tip. Petioles 20-40 cm long, 7-12 but moderately persistent, at least at basal fork mm at widest point. Blades alternate, green, of inflorescence. Staminate pedicels up to 13 membranous, transverse, very broadly elliptic, mm long; tepals white, 4, the outer suborbicular acuminate at the side (10-15 cm from petiole to 5-7 X 4-5 mm, the inner narrow 5 X 1.5 mm; tip in larger leaves), imbricate-cordate with the stamens yellow, > 30; anthers narrowly oblong; lobes overlapping, 16-25 cm across and 11-16 connective slightly produced, broadly rounded. cm from leaf top to bottom of lobes in large Pistillate pedicels 5-7 mm long, tepals 5, 4 mm leaves, very sparsely setulose with widely scat long, white?; styles 3, 1 mm long, connate at tered white hairs above, glabrous below, mar- very base; stigmas bifid; stigma horns twice SMITH & W ASSHAUSEN: NEW BEGONIAS 21 FIGURE 5. Isotype of Begonia pinheironis L.B. Sm. ex S.F. Sm. & Wassh. (Pinheiro 1898, US). openly coiled, 2 mm, covered with rufous pa Caatiba, regiao da mata mesofila SuI Baiana, pillae. Capsule ellipsoid, 5-5.5 X 2-3.2 mm; mata parcialmente perturbada, 1000 malt., 15 wings quite unequal, major wing: 1) in holotype, Mar. 1979, S.A. Mori & T.S. dos Santos 11585 immature, more opaque, uniform, tepal-like, 9- (CEPEC, US). 7 mm wide X 7 mm deep; or 2) in paratype, mature, more transparent through a celled matrix Begonia pinheironis L.B. Sm. ex S.P. Sm. & surface, 8-10 mm wide X 6-7 mm deep; minor Wassh., sp. nov. TYPE: Brazil. Bahia: AI wings (beyond capsule) 1 mm wide in holotype, madina, Fazenda Beija-fior, Serra de Pan up to 2 or 3 mm wide in paratype; placentas cadina entrada a 1 km da rodagem Alma simple. dina a Floresta Azul, mata, 8 Aug. 1972, R.S. Pinheiro 1898 (Holotype: CEPEC, PARATYPE: BRAZIL. Bahia: Rodovia BA-265, H.N. 8706; Isotype: US, #2830391). trecho Caatiba a Barra do Cho\(a a 6 km a W de FIGURE 5. 22 SELBYANA Volume 20(1) 1999 A B. fluminensis Brade, cui affinis, sed foliorum pe gest flowers, ovary less than 1 mm tall in the tiolis squamuligeris, laminis apiculatis differt. most mature immature flower, wings unequal, large wing 1 mm wide, small wings 0.5 mm Plant herbaceous, perennial, rhizomatous?, 30 wide; mature fruit purple, glabrous, with 6 mm cm tall, vegetatively covered in closely and fine pedicels; capsule 8 X 4 mm, purple; wings un ly lanate, soft, tan scales absent only from ma equal, markedly veined, transparent, purple at ture upper leaf surface and mature stipules (ex least peripherially, major wing 10 mm in height, cept midvein). Stem erect or ascending, stout, :±: triangular, 10 mm across top, 13 mm tip to covered with persistent, densely imbricate stip capsule base, minor wings 6 X 2 mm and of ules; internodes 1 cm long. Stipules persistent, uniform width. ovate, 25-35 mm long, chartaceous, entire, soon A second collection strongly approaches this glabrous except along proximal midvein surface, taxon: Brazil. Bahia: Municipio de Camadi, Ra dark brown, reticulate nerved. Petioles 19-24 mal que liga Bisc6 (lugarejo) ao povoado de Sao cm long, 5-8 mm wide at maturity, the clothing Joao do Panelinha, km 4, plantac;:ao de cacau, 14 scales quite persistent, though peeling to reveal Jul. 1978, T S. dos Santos & L.A. Mattos Silva darker red-brown under stem-like surface in 3302 (US). some places. Blades at maturity transverse, This collection resembles the type at the in broadly elliptic, apiculate on one side, otherwise florescence of intermediate maturity stage. It has entire, cordate, 14-19 cm wide, 9-11 cm from petioles, scales, leaves, peduncles, and bracte base to top, glabrous or with sparse whitish hairs oles that strongly match the type. Unlike the above, 1anate beneath. Peduncles 34-82 cm type, it has long internodes (3.5 cm and more) long, 3.5-7 mm in diameter, peeling more rap and lacks bracts (deciduous?) in the inflores idly than petioles. Inflorescence, when young, cence. The authors hesitate to make this a par spheroid, composed of dense composite-like atype as it conceivably could be another taxon. bracts, 15 mm tall, 15-18 mm across; at inter The label habit translates: 40 cm tall herbaceous mediate maturity with 2 dense cymes of stami plant with inflorescence reaching 80 cm and nate flowers atop 1.5 cm branches above basal white flowers. dichotomy, heads 2 cm high and 2.5 cm across; when mature up to 5 or 6 times dichotomous, Begonia pluvialis L.B. Sm. ex S.P. Sm. & 7.5 cm tall from basal dichotomy, the two basal Wassh., sp. nov. TYPE: Brazil. Parana: Mor branches 3.5 cm, the next distal 1.5-2 cm, flow retes, Colonia Floresta, dos matacoes de ers displayed in an open cyme 5.5 cm across (as granito de angusta de morro, 50-100m, 11 pressed on isotype) above the second dichoto Apr. 1968, G. Hatschbach 21328 (Holo mies; in fruit expanded to somewhat flat-topped type: MBM; Isotypes: (3) US). FIGURE 6. cyme, 10.5 cm tall, 14-15 cm across, basal A B. fernandoi-costae Irmscher, cui affinis, sed te branch 4.5 cm long, the next distal 2 cm; bracts palis masculinis orbicularibus et 10 mm longis differt. persistent, ovate, attenuate, 17 mm long at basal In B. fernando-costae Irmscher, tepalis masculinis lon fork, 10 mm at more distal dichotomies, mem gitriangularibus et 15 mm longis. branaceous, glabrous; bracteoles narrow, 6 X 1 Plant suffrutescent, saxicolous, somewhat mm including 2 mm filamentous tip. Staminate fleshy, reddish in color, hispid except in inflo pedicels 4 mm; tepals 4, white, the outer orbic rescence. Stem stout, 5-15 mm wide, sulcate, ular, 5 X 5 mm; stamens 30-40; anthers oblong; hispid like petioles, usually retrorse strigose with connective tissue slightly exserted broadly age; internodes 2.5-6 cm, longer proximally rounded; (the holotype centrally includes an ex down stem. Stipules along stem, persistent, 10- traneous partial inflorescence of staminate flow 20 X 10-15 mm, ovate, acute, thick, firm, cov ers lacking bracts and bracteoles and with larger ered with long hairs. Epipetiolar stipules 2-4 pediceis that must be from a different species). cm distal from petiole base, present on some Pistillate pedicel 1 mm; flowers immature, 0.5- (all?) leaves, ovate, 10 X 10 mm, probable 2.5 mm long from capsule base to tip of peri sources at which epipetiolar leaf and inflores anth, dark red or purple, subtended by bracteoles cence buds arise and the proximal 2-4 cm of longer than the capsule and perianth by 1.5 mm, former petiole then becoming stem and yielding covered with tiny white scales or idioblasts on apparently opposite leaves at the old epipetiolar tepals, capsule and wings; tepals when immature stipule (node). Petioles erect, 10-25 cm long, forming a hard pyramid atop capsule, 0.75-1 hispid, with long, ferruginous, often wide, often mm long, when mature 2 mm and more petaloid fringed hairs, velutinous to retrorse strigose. in appearance; style 1 mm long, not connate, Blades "opposite," suborbicular, oblique, acute covered with white tomentum; stigma with or acuminate, 7-13 cm from petiole to drip tip, white tomentum, bifid; stigma horns 1 mm, 10-18 cm long, 7-15 cm wide, 2-4 cm deeply straight (not coiled). Capsule evident in youn- and narrowly cordate at base with the lobes SMITH & WASSHAUSEN: NEW BEGONIAS 23 FIGURE 6. Paratype of Begonia pluvialis L.B. Sm. ex S.P. Sm. & Wassh. (Hatschbach 9160, US). sometimes overlapping, strigose above and be er suborbicular, 9-10 mm long, the inner ellip low with simple hairs, on subveins hairs denser, tic, 8 X 5 mm; stamens 20-25; anthers subses whorled or wide and fringed, lower surface tiled sile, linear; connective tissue exserted, obtuse. in tiny whitish idioblasts (cystotyles or cysto Pistillate pedicels 6 mm long when petals open, spheres-swellings on surface of cells). Pedun 15 mm long in fruit; tepals whitish, 7 X 4 mm; cles 30-60 cm long, sparsely hispid on lower styles 3, fat (1 X 1 mm), connate at base; stig half, mostly glabrous on upper half, up to 9 mm mas minutely rufous papillose, normally all 3 thick. Inflorescence terminal or lateral, subtend bifid with 1 mm long slightly curved horns, in ed by a pair of leaf petioles, 4-5 times dichot holotype one flower with one unbranched stigma omous, 10-14 cm long, glabrescent. Bracts (and 2 branched), obtuse at apex or horn tip. quickly deciduous; bracteoles membranaceous, Fruit, young, green; capsule ellipsoid, 13-15 X lanceolate, 2-3 mm long, attenuate. Staminate 6-7 mm; wings 3, unequal; major wing ovate, pedicels 6-7 mm long; tepals 4, whitish, the out- spreading, at maturity with mostly horizontal 24 SELBYANA Volume 20(1) 1999 FIGURE 7. Holotype of Begonia polygonifolia A. DC. var. differens L.B. Sm. ex S.E Sm. & Wassh. (dos Santos, Mattos Silva & Thompson 3383, US). raised veins, 12-14 X 15 rum, minor wings 2, Beija-Flor, ramal ca. entrada no km 3 da narrowly crescentiform, 2-3 rum wide; placentas rodavia Almadina a Floresta Azul, final do simple. ramal, planta~ao de cacau, sobre pedras, 9 Nov. 1978, T.S. dos Santos, L.A. Mattos Sil PARATYPE: BRAZIL. Parana: Paranagua, Serra va & C.B. Thompson 3383 (Holotype: US; da Prata, sobre blocos de pedras, na mata plu Isotype: CEPEC). (Section: Wageneria). vial, 100 m, 7 Jun. 1962, G. Hatschbach 9160 FIGURE 7. (US (2); MBM). A B. polygonifolia A. DC. cui affinis, foliorum lam Begonia polygonifolia A. DC. var. differens inis petiolatis differt et prope B. jagifolia Fisch. sed planta glabra. L.B. Sm. ex S.R Sm. & Wassh., var. nov. TYPE: Brazil. Bahia: Almadina, Fazenda Plant herbaceous, epiphytic, saxicolous or ar- SMITH & WASSHAUSEN: NEW BEGONIAS 25 boreal, perennial. Stem repent, a climbing vine tite with long, soft, simple, ferruginous tri with adventitious roots at the nodes, sulcate, red, chomes. Blades green, transverse, broadly ellip 4 mm wide; internodes 3.5-10 em long. Stipules tic, usually shortly apiculate, shallowly cordate, persistent, ovate, apiculate, 15 X 7-11 or more 10-15 em wide at maturity, 1-4 em wide and mm, membranaceous, red. Petioles 1.5 em or most membraneous when young, undulate-den more long in mature leaves. Blades elliptic, with tate, evenly and very sparsely vestite above with petiole and midvein colinear, short (type) or long short simple trichomes, beneath pale along the apiculate, 8-11 X 3-4 em, entire, slightly darker nerves and vestite with longer (petiolar-like) tri above, ventrum tiled with tiny white idioblasts chomes, with minute white idioblasts scattered (cystotyles or cystospheres-swellings on sur on both surfaces. Peduncles erect, 6.5-13.5 em face of cells). Peduncles erect, probably up to long, very sparsely vestite with minute dark 10 em long. Inflorescences strongly protandrous glands or, on shortest peduncle, with sparse long (seemingly unisexual in holotype as pistillate trichomes near distal tip. Inflorescence bisexual, flowers only buds, each at base of a male pedicel laxly twice dichotomous with flowers densely in the "male" inflorescence), laxly 5-6 dichot massed at the ends of the branches, dark-glan omous; bracts persistent, minute, < 1 mm. Sta dular like the peduncles; bracts persistent, gla minate pedicels 6 mm at maturity, subtended by brous, membraneous, ovate, narrow, 2-4 X 1-2 small (1 mm) narrow persistent bracteole; flow mm; bracteoles similar, a bit smaller. Staminate ers white, in distal umbels of 2 or 3; tepals 4, pedicels 5 mm at anthesis; tepals 4, white, the dark glanduliferous, subequal, the outer subor outer suborbicular, 4-6 mm long, the inner el bicular, 3 mm long, the inner nearly as wide; liptic, shorter; stamens few; anthers oblong; con stamens 25, yellow, free; anthers oblong; con nective slightly produced, broadly rounded. Pis nective tissue slightly exserted, broadly rounded. tillate pedicels reaching 2 mm long in fruit; te Pistillate pedicels 9-10 mm in open flower; pals 5.6 X 2 mm, unequal-some shorter (4 X flowers in distalmost pairs (or in 5's with a flow 1.5 mm); styles 3, 0.5 mm long; stigmas bifid, er at the penultimate bifurcation); styles 3, free, horns 1.5 mm, coiled openly twice. Capsule el 1 mm long; stigmas bifid; stigma horns 2 mm, lipsoid, 6 X 2 mm; wings ovate, slightly un with tiny white tomentum, 11,2 turns outwardly equal, major wing 7 mm wide, 9 mm deep about spirally flexed distally; tepals 5, dark glanduli capsule; minor wing 4 mm wide; placentas sim ferous. Capsule narrowly ellipsoid, young, ple. greenish, 7 mm tall; major wing 20 mm wide at Begonia serranegrae L.B. Sm. ex S.P. Sm. & maturity, dwarfing the hardly expressed minor Wassh., sp. nov. TYPE: Brazil. Parana: Gu wings; placentas simple. araque<;:aba: Mata pluvial sombria, depres soes umidas, 100 m, 10 Dec. 1970, G. PARATYPE: BRAZIL. Bahia: Rio Belmonte, 20 Hatschbach 25785 (Holotype US; Isotype ft "alta in sylvis super arbores minores," Aug. MBM). FIGURE 9. 1816-1817, Prinz Maximilian A.P. zU Wied-Nie wied s.n. (photo at US from NY?). A B. gardneri A. DC., sui affinis, sed pedunculo multo breviore, foliorum laminis inflorescentias occul Begonia russelliana L.B. Sm. ex S.P. Sm. & tantibus, stipulis persistentibus, petiolis dense pubes Wass., sp. nov. TYPE: Brazil.Grown in US centibus differt. research greenhouse from seed collected in Plant herbaceous, perennial, 1.5 m high, Bahia, Rio Piau, west of Valenc;a, by Fa densely appressed ferruginous-pubescent. Stem zenda Floresta, adjacent to small waterfall, flexuous fleshy, losing pubescence with age; in in sandy loam in the shade of the river for ternodes variable, 1-1.5 em on one sterile 10- est, 50 m, 24 Apr. 1976, G. F. Russell s.n. noded sprig, 2-7 + em on two fertile sprigs, de (Holotype, US; Isotype, US). FIGURE 8. creasing in size distally. Stipules persistent, A B. saxifraga A. DC., cui affinis, sed foliorum sti ovate, up to 11 mm long, likewise pubescent, pulis, pedunculo et inflorescentias plus glabris quam with raised (keeled) proximal midvein. Petioles ciliatis et flores fasciculatus non apertus et sejunctus 4-9.5 em long, usually densely pubescent. in inflorescentia differt. Blades digitate, 15 cm wide, unequally 3-4- Plant herbaceous, perennial. Stem rhizoma lobed; the longest lobe oblique or transverse to tous(?)-prostrate but sending up flowering the petiole, ovate, acuminate, 5-9 cm long, 9- branches, internodes ca. 5 mm long, short and 15 cm from leaf base, cut more or less half way stout but distinct. Stipules persistent, imbricate, to the base; the other lobes descending in size ovate, attenuate to a soft-setose apex, 15 mm across the top of the leaf, the top usually the long, different in color (red or brown?) from second largest lobe, loosely ferruginous-stellate leaves, membranaceous, apparently glabrous. lanose above in young leaves becoming rapidly Petioles slender, 2-7 em long, persistently ves- very sparsely whitish pubescent with age, be-