THAI FOREST BULLETIN

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110 THAI FOREST BULLETIN (BOTANY) 37 The species is immediately recognisable by the row of tubercle-based hooks on both sides of the midrib of the lower glume of the sessile spikelet and the glabrous pedicels about half as long as or more than the sessile spikelet. The description above is based on the cited Thai specimens. In Thailand C. gryllus is similar to C. orientalis (Desv.) A.Camus and the key below should help to distinguish between the two species: Culms rather slender, up to 1 m tall. Blades 3–33 cm long, above glabrous to puberulous. Sessile spikelets: callus hairs 1.7–2.85 mm long. Lower glume smooth, glabrous to distally pilulose; upper glume with a 8–17 mm long awn. Pedicel hairy C. orientalis Culms robust, more than 1 m tall. Blades 40–60 cm long, above sparsely pilose. Sessile spikelets: callus hairs ca 3.5 mm long. Lower glume smooth, but with a row of black spicules on each side of the midrib, distally sparsely setose; upper glume with a ca 6.5 mm long awn. Pedicel glabrous, smooth C. gryllus ACKNOWLEDGEMENTS We would like to thank the Center of Excellence in Biodiversity, Faculty of Science, Chulalongkorn University (CEB_D_11_2006), the 90th Anniversary of Chulalongkorn University Fund and the Development and Promotion of Science and Technology Talents Project of Thailand (DPST) for funding of this research. We also thank the directors and curators of QBG and CMU for making the specimens available for this study. REfERENCES Bor, N.L. (1960). The grasses of Burma, Ceylon, India and Pakistan, excluding Bambuseae. Pergamon Press, London. pp 767. Chen, S. & Phillips, S.M. (2006). Chrysopogon. In: Z. Wu & P.H. Raven (eds), Flora of China 22: 603–604. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis. Cope, T.A. (1980). New combinations in Asiatic grasses. Kew Bulletin 35: 701–704. ________. (1982). Poaceae. In: E. Nasir & S.I. Ali (eds), Flora of Pakistan 143: 301. Karachi. Shukla, U. (1996). Grasses of North-eastern India. Scientific Publishers, Jodhpur. Veldkamp, J.F. (1999). A revision of Chrysopogon Trin. and Vetiveria Bory (Gramineae) in Thailand and Malesia with notes on some other species from Africa and Australia. Austrobaileya 5: 503–533.
Thai ForesT BulleTin (BoTany) no. 37, 2009 ConTenTs Page Peter C. Boyce. Anadendrum (Araceae: Monsteroideae: Anadendreae) in Thailand 1‒8 ________. Ariopsis (Araceae: Colocasieae) a new generic record for Thailand & preliminary observations on trans-Himalayan biogeography in Araceae 9‒14 ________. A review of Pothos L. (Araceae: Pothoideae: Pothoeae) for Thailand 15‒26 sahut Chantanaorrapint & amonrat Chantanaorrapint. Thismia clavigera (Thismiaceae), a new record for Thailand 27‒31 Wittaya Kaewsri, yingyong Paisooksantivatana & uamporn Veesommai. A new record and a new synonym in Amomum Roxb. (Zingiberaceae) in Thailand 32‒35 Charan leeratiwong, Pranom Chantaranothai & alan J. Paton. A synopsis of the genus Callicarpa L. (Lamiaceae) in Thailand 36‒58 stuart lindsay & David J. Middleton. Lecanopteris pumila Blume (Polypodiaceae), a new record for Thailand 59‒63 stuart lindsay, David J. Middleton, Thaweesakdi Boonkerd & somran suddee. Towards a stable nomenclature for Thai ferns 64‒106 oratai neamsuvan, Tosak seelanan & Jan Frits Veldkamp. Chrysopogon gryllus (L.) Trin. (Poaceae), a new record for Thailand 107‒110 hans Peter nooteboom & Piya Chalermglin. The Magnoliaceae of Thailand 111‒138 Christian Puff. Argostemma siamense Puff, a new name for A. monophyllum Sridith (Rubiaceae) 139 Kitichate sridith. A new species record of Argostemma (Rubiaceae) for Thailand 140‒143 somran suddee & Bob harwood. Gastrodia verrucosa (Orchidaceae), a new, but not unexpected, record for Thailand 144‒146 Chalermpol suwanphakdee & Pranom Chantaranothai. The monotypic genus Zippelia Blume (Piperaceae): a new record for Thailand 147‒150 Piyachart Trisarasri & somran suddee. Isodon walkeri (Lamiaceae), a new record for Thailand 151‒155 Jan Frits Veldkamp. Xerochloa R.Br. (Gramineae, Paniceae) in Thailand 156‒160 Printed at : PRACHACHON CO., LTD. 35 Soi Pipat, Silom Road, Bangrak, Bangkok 10500, Thailand Tel. 66 2636 6550–8 With the financial support of the Commission on Higher Education.
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ISSN 0495-3843 THAI FOREST BULLETIN
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THAI FOR. BULL. (BOT.) 37: 1-8. 200
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ANADENDRUM (ARACEAE: MONSTEROIDEAE:
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THAI FOR. BULL. (BOT.) 37: 111-138.
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Conservation status THE MAGNOLIACEA
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THE MAGNOLIACEAE OF THAILAND (H.P.
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THAI FOR. BULL. (BOT.) 37: 139. 200
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A NEW SPECIES RECORD OF ARGOSTEMMA
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A NEW SPECIES RECORD OF ARGOSTEMMA
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GASTRODIA vERRUCOSA (ORCHIDACEAE),
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THE MONOTYPIC GENUS ZIPPELIA BLUME
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ISODON WALKERI (LAMIACEAE), A NEW R
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ISODON WALKERI (LAMIACEAE), A NEW R
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XEROCHLOA R.BR. (GRAMINEAE, PANICEA
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XEROCHLOA R.BR. (GRAMINEAE, PANICEA
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ARIOpSIS (ARACEAE: COLOCASIEAE) A N
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ARIOpSIS (ARACEAE: COLOCASIEAE) A N
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A REVIEW OF POTHOS L. (ARACEAE: POT
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A C A REVIEW OF POTHOS L. (ARACEAE:
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THISMIA CLAvIGERA (THISMIACEAE), A
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THISMIA CLAvIGERA (THISMIACEAE), A
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A NEW RECORD AND A NEW SYNONYM IN A
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A NEW RECORD AND A NEW SYNONYM IN A
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A SynOPSIS OF THE GEnUS CALLICARPA
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Page 117 and 118: TOWarDS a STaBLe NOMeNCLaTure FOr T
Page 119 and 120: Table 1. Comparison of family delim
Page 127 and 128: NAME IN FLORA OF THAILAND (Tagawa &
Page 147 and 148: CURRENT NAME NAME IN PTERIDOPHYTES
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Page 161: CHRYSOPOGON GRYLLUS (L.) TRIN. (POA
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THAI FOREST BULLETIN

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