5 O-15

  Setariinae (Poaceae)     !"#  #$%$& '()*+ Subtribe Setariinae (Poaceae) in Phu Chong Na Yoi National Park, Ubon Ratchathani province

:%+; %1 " #  $  *1 Paweena Wessapak 1 and Chatchai Ngernsaengsaruay *1

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ABSTRACT Study of the subtribe Setariinae (Poaceae) in Phu Chong Na Yoi National Park, Ubon Ratchathani province was conducted from October 2009 to December 2010. Field exploration and specimen collections were made along 9 routes representing 4 vegetation types at 200-300 m. The vegetation are open rock platform, deciduous dipterocarp forest, dry evergreen forest and open area. Eleven genera, 19 species and 2 varieties were recorded. The genus Panicum L. is the highest number of species (4). One species, Sacciolepis fenestrata Bor is an endemic to Thailand and new locality recorded. Keywords: Poaceae, Subtribe Setariinae, Phu Chong Na Yoi National Park

*Corresponding author: [email protected] 1; 
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 l 10900 1Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900 1
 

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Table 1 Species enumeration of the subtribe Setariinae (Poaceae) in Phu Chong Na Yoi National Park, Ubon Rachathani province Species Vegetation Range of Botanical name Thai name number type flowering 1 Acroceras tonkinense (Balansa) C. E. Hubb. - DEF Jun.-Nov. 2 Alloteropsis semialata (R. Br.) Hitchc. - DDF, OA May-Jun. 3 Axonopus compressus (Sw.) P. Beauv. 56"p DEF, OA Jan.-Dec. 4 Cyrtococcum accrescens (Trin.) Stapf 56 > DEF Oct.-Dec. 5 Cyrtococcum oxyphyllum (Steud.) Stapf - DEF Oct.-Dec. 6 Oplismenus compositus (L.) P. Beauv. 56Q> DEF Oct.-Dec. 7 Ottochloa nodusa (Kunth) Dandy 56"$ DEF, OA Jun.-Oct. 8 Panicum auritum J. Presl ex Nees 56"68868 OA Sep.-Nov. 9 Panicum elegantissimum Hook.f. 56Q$< DDF, OA Sep.-Nov. 10 Panicum incomtum Trin. 56Q DEF Dec. 11 Panicum notatum Retz. 56Q"  DEF Nov. 12 Paspalum conjugatum P. J. Bergius 56$$8$ OA May-Dec. 13 Paspalum orbiculare G. Forst. 56$$8$ OA Oct.-Feb. 14 Sacciolepis fenestrata Bor - OA Dec. 15 Sacciolepis indica (L.) Chase var. indica 56"68"H
OA Dec.-Jan. Sacciolepis indica (L.) Chase var. turgida (Ridl.) - OA Oct.-Jan. Gilliland

5
 

  5 Table 1 Species enumeration of the subtribe Setariinae (Poaceae) in Phu Chong Na Yoi National Park, Ubon Rachathani province (continued) Species Vegetation Range of Botanical name Thai name number type flowering 16 Sacciolepis myosuroides (R. Br.) A. Camus - OA Oct. 17 Setaria barbata (Lam.) Kunth - OA Sep.-Dec. 18 Setaria parviflora (Poir.) M. Kerquélen 56 DDF, OA Jul.-Oct. = =8
19 Urochloa subquadripara (Trin.) R. D. Webster - OA Sep.-Nov.

Note Vegetation type: DDF = Deciduous dipterocarp forest, DEF = Dry evergreen forest, OA = Open area

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 =<)   #  $ . 2552.  =<):)P= '=)< %  =)Z% *[  (Grass Taxonomy) . ; 
 k   "
. Bor, N.L. 1960. The Grasses of Burma, Ceylon, India and Pakistan (Excluding Bambuseae) . Pergamon Press, London. Clayton, W.D. and S.A. Renvoize. 1986. Genera Graminum: Grasses of the World . London Her MajestyŠs Stationary Office, London. Gilliland, H.B. 1971. A Revised Flora of Malaya Vol. 3: Grasses of Malaya . Lim Bian Han, Government Printer, Singapore. Norsangsri, M. 2006. Systematics of Poaceae Subtribe Setariinae in Thailand . Ph.D. Thesis, Khon Kaen University. Stevens, P. F. 2001. Angiosperm Phylogeny Website . Version 9, June 2008 (and more or less continuously updated since). Available Source: http://www.mobot.org/MOBOT/research/APweb/., March 02, 2011.

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  5

A B C D

G E F H

I J K L

Figure1 Some species of the subtribe Setariinae (Poaceae) in Phu Chong Na Yoi National Park: A. Alloteropsis semialata (R. Br.) Hitchc; B. Cyrtococcum oxyphyllum (Steud.) Stapf; C. Oplismenus compositus (L.) P. Beauv.; D. Ottochloa nodusa (Kunth) Dandy; E. Panicum auritum J. Presl ex Nees; F. Panicum incomtum Trin.; G. Paspalum conjugatum P. J. Bergius; H. Sacciolepis fenestrata Bor; I. Sacciolepis indica (L.) Chase var. indica ; J. Setaria barbata (Lam.) Kunth; K. Setaria parviflora (Poir.) M. Kerquélen; L. Urochloa subquadripara (Trin.) R. D. Webster

7