A JOURNAL ON TAXONOMIC BOTANY, PLANT SOCIOLOGY AND ECOLOGY LIPI 12(4) REINWARDTIA A JOURNAL ON TAXONOMIC BOTANY, PLANT SOCIOLOGY AND ECOLOGY Vol. 12(4): 261 - 337, 31 March 2008 Editors ELIZABETH A. WIDJAJA, MIEN A. RIFAI, SOEDARSONO RISWAN, JOHANIS P. MOGEA Correspondece on The Reinwardtia journal and subscriptions should be addressed to HERBARIUM BOGORIENSE, BIDANG BOTANI, PUSAT PENELITIAN BIOLOGI - LIPI, BOGOR, INDONESIA REINWARDTIA Vol 12, Part 4, pp: 335 – 337 A NEW JAVANESE SPECIES OF MARASMIUS (TRICHLOMATACEAE) Received November 21, 2007; accepted February 27, 2008. ATIK RETNOWATI Herbarium Bogoriense, Botany Division, Research Center for Biology–LIPI, Bogor, Indonesia ABSTRACT. RETNOWATI, A. 2008. A new Javanese species of Marasmius (Tricholomataceae). Reinwardtia 12(4): 335 – 336. — Marasmius xenopellis is described as a new species based on material collected from Mt. Halimun National Park, West Java. Keywords: Maramius xenopellis, Mt. Halimun National Park, Java ABSTRAK RETNOWATI, A. 2008. Suatu jenis baru dari marga Marasmius (Tricholomataceae) dari Jawa . Reinwardtia 12(4): 335 – 336. — Marasmius xenopellis dipertelakan sebagai jenis baru berdasarkan material yang dikoleksi dari Taman Nasional Gunung Halimun, Jawa Barat. Kata Kunci: Maramius xenopellis, Taman Nasional G. Halimun, Jawa INTRODUCTION Pleurocystidia rarus, 8–16 x 3.2–4 μm, cylindricae. Pileipellis hymeniformis, a) polymorphicae (clavatae, During a fieldwork to Mt. Halimun National pyriformae vel subglobosae), 12–17.6 x 9.6–16 μm; b) cellulae typi Sicci, 9.6–14.4 x 4.8–9.6 μm, crasse- Park, West Java (Indonesia), an interesting tunicate; c) Setae 9.6–14.4 x 1.6 μm. Trama pilei collection of a species of Marasmius was made, irregulare. Stipes cellulis typy Sicci et caulosetis which at first sight appeared to belong to section obtectus. Fibulae presentes. Gregarius ad terram. Globulares, but upon further closer examination Holotypus: Indonesia, Java, West Java, Mt. Halimun revealed that it had also Siccus-type pileipellis. It National Park, 8 July 2000, A. Retnowati 288 (BO). seems that the present species is allied with another species that has intermediate pileipellis Pileus 43–87 mm diameter, convex with type, viz. Marasmius nexus Desjardin & Horak broad umbo, sulcate, hygrophanous; margin from Papua New Guinea (Desjardin & Horak crenate, straight to wavy; surface moist, wrinkle, 1997) which they placed in section Sicci. The glabrous; pale brown to brown (6–E7) (Kornerup latter species differs in forming smaller & Wanscher 1978). Context moderately thick up basidiomata (pileus 10–50 mm, stipe 20–75 x 1.5– to 2 mm, off-white. Lamellae adnexed, subdistant 3 mm) and smaller basidiospores (5.5–8 x 2.5–3 (16–18 reaching stipe) with 1 series of lamellulae; μm). brown marginated, up to 11 mm breadth; pale Since the combination of these macroscopic brown. Stipe 135–195 x 4–6 mm, eccentric, and microscopic characters cannot be matched equal, hollow, central, smooth, pruinose mostly at with any described taxa, this colletion is proposed the apex; reddish brown; with a very thick white to be made the type specimen of a new species. tomentose base. Odor and taste not distinctive. Basidiospores (10.4)11.2–12 x (5.6)6.4–7.2(8) μm, ellipsoid, thin-walled, hyaline, inamyloid. Marasmius xenopellis Retnowati, spec. nov. –– Basidia unobserved. Basidioles unobserved. Fig. 1. Cheilocystidia abundant in the form of 1) siccus- type broom cells with 2–4 setulae; main body 5.6– Pileus 43–87 mm latus, convexus ad umbonatus, 32 x 4.8–8 μm, cylindrical, thick-walled; setulae sulcatus, glabrus. Lamellae adnexae, subdistances, 5.6-17.6 x 2.4-3.2 μm, cylindrical, thick-walled, brunneus marginatae. Stipe 135–195 x 4–6 mm, yellowish brown.; 2) setae with pointed apex, 32– eccentricus, aequalis, pruinosus, ad basim tomento 144 x 2.4–5.6 μm, thick-walled, yellowish brown. albo. Odor saporque nulli. Basidiosporae (10.4)11.2– Pleurocystidia uncommon, 8–16 x 3.2–4 μm, 12 x (5.6)6.4–7.2(8) μm, ellipsoideae, leves, hyalinae, inamyloideae, tenui-tunicate. Cheilocystidia a) Cellulae cylindrical, capitate, thick-walled, perpendicular, yellowish brown. Pileipellis hymeniform, typi Sicci, 5.6–32 x 4.8–8 μm, setulosae, cylindricae, 2–4 setulae ad apicem 5.6–17.6 x 2.4–3.2 μm, crasse- composed of 1) globulares-type, smooth cells, tunicatae; b) Cheilosetae 32–144 x 2.4–5.6 μm. clavate to broadly clavate, pyriform or subglobose 335 336 REINWARDTIA [VOL.12 1 . 2 b. c. a. d. 1 1 . . 3 2. 2. f. e. Fig. 1. Marasmius xenopellis (A. Retnowati 288, Holotype): a. Basidiomes (1/2 x); b. Basidiospores ; c. Cheilocystidia : 1. Siccus-type cheilocystidia ; 2. Cheilosetae ; d. Pleurocystidia; e. Pileipellis: 1. Globulares-type of pileipellis; 2. Siccus-type of pileipellis; 3. Pileosetae. f. Stipe vesture: 1. Siccus-type caulocystidia; 2. Caulosetae. Scale bar = 12 μm for figure b and scale bar = 15.7 μm for figures c, d, e and f. cells, thin-walled,12–17.6 x 9.6–16 μm, hyaline to yellowish brown; setulae 5.6–16.8 x 1.6–2.4 μm, yellowish brown; 2). Siccus-type broom cells with irregular, cylindrical, clavate, with pointed apex; 2–4 setulae; main body 9.6–14.4 x 4.8–9.6 μm, caulosetae often present at the upper part of stipe, cylindrical, thick-walled; setulae 9.6–14.4 x 1.6 29.1–31.4 μm, lanceolate to fusoid-ventricose, μm, cylindrical, thick-walled, yellowish brown; 3) acute, dextrinoid, thick-walled, pale yellow. setae with pointed apex, 20–30.4 μm long, thick- Clamp connection present. walled, yellowish brown. Pileus trama irregular, 3.2–12 μm diam, hyaline to yellowish brown. Stipe tissue monomitic; cortical hyphae 4.8–13.6 HABIT, HABITAT AND DISTRIBUTION. μm diam, parallel, cylindrical, dextrinoid, yellow- Gregarious on soil of mountain forest in West ish brown; medullary hyphae 5.6–8.8 μm diam, Java. parallel, hyaline, thin-walled, strongly dextrinoid. Stipe vesture common, composed of numerous siccus-type broom cells and caulosetae; siccus- SPECIMEN EXAMINED. Indonesia: Java, West Java, type broom cells similar to those of cheilocystidia; Mt. Halimun National Park, 8 July 2000, A. Retnowati main body 15.2–38.4 x 2.4–4 μm, irregular 288. shaped, cylindrical, thin-walled to thick-walled, 2008] RETNOWATI: A new species of Marasmius 337 ETYMOLOGY. – xeno (L.): strange; pellis (L.): REFERENCES pileipellis, referring to the presence of two types of pileipellis, Globulares and Siccus- types. DESJARDIN, D.E . & HORAK, E. 1997. Marasmius and Gloiocephala in South Pacific Region: Papua New Guinea, New Caledonia, and New Zealand ACKNOWLEDGEMENT Taxa. Bibl. Mycologica 168: 152 p. KORNERUP, A. & WANSCHER, J.H. 1978. Methuen The research was supported by Japan International handbook of colour. 3rd. Ed. Eyre Methuen, Cooperation Agency (JICA) in 1999-2000. Thank to London. 252 p. Dr. Mien A. Rifai for his very useful comments. INSTRUCTION TO AUTHORS Taxonomic keys should be prepared using the aligned-couplet type. Strict adherence to the International Code of Manuscripts intended for publication in Botanica Monenclatural is observed, so that Reinwardtia should be written either in English, French taxonamix and nomenclatural novelties sholud be or German, and represent articles wich have not been clearly shown, Latin description for new taxon published in any other journal or proceedings. 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The correct name for the Tetrastigma (Vitaceae) host of Rafflesia (Rqfflesiaeeae) in Malesia and a (not so) new species ... 261 WJ.J.ODE WILDE &B.E.E. DUYFES. Miscellaneous South East Asian cucurbit news 267 M.A. RIFAI. Endophragmiella bogoriensis Rifai,spec. nov (Hyphomycetes) 275 M.A. RIFAI. Another note on PodoconismegaspemiaBoedijn(Hyphomycetes) 277 TOPIK HID AW; M. ITO; T. YUKAWA. The phylogenetic position of the Papuasian genus Sarcochilus R.Br. (Orchidaceae: Aeridinae): evidence frommolecular data 281 C.E. RIDSDALE. Notes on MaiesiznNeonaucleea 285 C.E. RIDSDALE. Thorny problems in the Rubiaceae: Benkara, Fagerlindia andOxyceros 289 KUSWATAKARTAWINAIA, PURWANINGSIH, T. PARTOMIHARDJO, R. YUSUF, R. ABDULHADI, S. RISWAN. Floristics and structure of a lowland dipterocarp forest at Wanariset Samboja, East Kalimantan, Indonesia 301 RUGAiAH & S. SUNARTI. Two new wild species of Averrhoa (Oxalidaceae) from Indonesia 325 ATIKRETNOWATI. Anew Javanese species of Marasmius (Trichlomataceae ) 334 Reinwardtia is a LEPI acredited Journal (80/Akred-LIPI/P2MBI/5/2007) HERBARIUM BOGORIENSE BIDANG BOTANI , PUS AT PENELITIAN BIOLOGI - LIPI BOGOR, INDONESIA