5 O-03 !"# $# #%"# Diversity of vascular plants in the floodplain vegetation of Trang River Basin #" <# = >* 1 " # $ # 1 Ponlawat Pattarakulpisutti*1 and Kitichate Sridith1 #% 0 ""12 32"4"567 8764 90 "322:7 56"64 ; $ $326 ; 6 .. 2551 90$326> 6? .. 2553 7 8A;46 6 63 163 6 $ 56;46 66C6 3"DE6 8 6 $ (4.9%) 3" Eudicots 95 6 $ (58.3%) 3" Magnoliids 2 6 $ (1.2%) " 3" Monocots 58 6 $ (35.6%) ;;46 6 3 766;46C6 364 55 6 $ " 37 108 6 $ 56" 364;46$AC6 3T$ 38 6 $ " 3"T 17 6 $ 56" 37;46 C6 3T$ 25 6 $ " 3"T 83 6 $ =#C: 764 90, "64, 32"4", "" > ABSTRACT The study on diversity of the vascular plants in the Trang River Basin, peninsular Thailand was carried out from November 2008 to February 2010. One hundred and sixty three species were recorded. These species belong to 8 species (4.9%) of Ferns, 95 species (58.3%) of Eudicots, 2 species (1.2%) of Magnoliids and 58 species (35.6%) of Monocots. They are composed of 55 species of aquatic plants and 108 species of terrestrial plants. The aquatic plants could be divided into 38 species of annual plants and 17 species of perennial plants. The terrestrial plants could be divided into 25 species of annual plants and 83 species of terrestrial plants. Keywords: floodplain, Trang River Basin, vascular plants, biodiversity *Corresponding author: [email protected] 1 ?>8k 3 "1"6 6 (PSU) > 8 .1"6 6 2.$5m ;.1" 90112 1Prince of Songkla University Herbarium (PSU), Department of Biology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112 1 5 764 90327 rst64 u056 $:64"64""A6264;22 7 87 $" "56 $:"A64;"$";6"32v 64"2:56264$ ""$1264; $"76C6;4T 7 87 rst64$" 764 90 (Finlayson and Moser, 1991) ;> 64 126A2 "60C6;4 $10656 $:64"45A 32567 8 6;A27 32 2:2$5612 "8#6 2w 37 8 764 905 364326 3566232"7u064; 1"2$ " 45A 3 567 8764 90" 8v 6 665;56328#6 12 3"6 $ 90 xA12 3x$ 2" 8; 377 7569 62236$A "64 C67764 665; 632;64C6646$ 561 6127"":716$"w 26;"":"26$624>26 C664 " 8v 3267646236 y "561$ 6 6"z67 329A wC6716$"w;6 {612 3" 8v $A C66$ 3" 8v x$$$6"665; 6 u0 7v 567 8$" 0 26 s;;76 3" 8$" 4":m;632; "6 "A1326 4"77 " 126456642$x$ 6 3$" 56; $ 67 "32C6"$A561 6127 "4"2: 9:74" u0 32 A2$56A6 1$ 65;632;1$2 :A5632$" $660 3" 8A567 8764 90x$v 56>5Au0C6>: > "" > : $6012x";0A27426 3776;$ 0 566 9 32 0 ""12 32"4"567 8764 90"64 32;$A1A2:" ? 12 8A " 3567 8$" u05626265"A;"325A0 22 N O!P> Q R 64 125 .. A646 $;3217$561; $6? "z6 5 24>212; $""22:"26$624>26 >: 256976C6771A26 28>: v"8 27.4 °u 864r6v" 2327.4 . $326r66$32$32666 864r6v" 335.8 . 36 ? 62% 56 $:"A " 96% 56 $:r6 (:626 ", 2553) 864v" 2063.41 "A6 "7.. 864:$56 $326"90$326?6 "4$56 $32690$326 6 2 5 > $# 4 ;"w7 2 8 32"4" 56xA37 6?772 7 87 64 90"6426A2$326" 1 "2$ " 16 $326 $326 ; 6 .. 2551 90$326> 6? .. 2553 732 9:A2x$5A: ?656632 8 12 ""u 90>: >5"A236y 56 ?>8k 3 "1"6 6 (PSU) 2 3$A;$4C6 2A 2$2 " 2"w$ w7 A56 ?>8k 3 "1"6 6 S Q R ;4 ; 32"4"567 8764 90 "322:756"64 ; $ 7 8A;46 6 163 6 $ 56;46 66C6 3"DE6 8 6 $ (4.9%) 3" Eudicots 95 6 $ (58.3%) 3" Magnoliids 2 6 $ (1.2%) " 3" Monocots 58 6 $ (35.6%) (Table 1) x$56" 3 Eudicots 3 Rubiaceae C6 ""$ 7 10 6 $ 2"32 Fabaceae " Phyllanthaceae 7 9 6 $6 56" 3 Magnoliids 7 3 2 6 $; 2 32 Annonaceae " Lauraceae 6 3 Cyperaceae C6 ""$56" 3 Monocots 7 22 6 $ 2"32 3 Poaceae 7 12 6 $"4$7 (Fig. 1.) ;;46 6 3 7 163 6 $ 9;46C6 364 55 6 $ " 37 108 6 $ 56" 364 ;46$A2C6 3T$ 38 6 $ " 3"T 17 6 $ 56" 37;46C6 3T$ 25 6 $ " 3"T 83 6 $ Table 1. List of plant species found in Trang River basin floodplain vegetation. Fami ly Scientific name Life form 1 Voucher Ferns Lygodiaceae Lygodium microphyllum (Cav.) R. Br. Ptv Patt. 220 Ophioglossaceae Helminthostachys zeylanica (L.) Hook. Pth Patt. 471 Polypodiaceae Drymoglossum piloselloides C. Presl Pte Patt. 219 Dryna ria quercifolia (L.) J. Sm. Pte Patt. 283 Unknown 1 Pte Pteridaceae Acrostichum aureum L. Pae Adiantum sp. Pth Ceratopteris thalictroides (L.) Brongn. Aae Eudicots Acanthaceae Unknown 2 Ath Patt. 562 Amaranthaceae Alternanthera ses silis (L.) R. Br. ex DC. Aae Patt. 408 Apocynaceae Aganosma marginata (Roxb.) G. Don Ptc Patt. 240 Atherandra acutifolia Decne. Ptv Patt. 565 Hoya parasitica Wall. ex Wight Ptv Patt. 217 Ichnocarpus frutescens R. Br. Ptv Taxocarpus sp. Ptv Patt. 458 Tylophora indica Merr Ptv Patt. 224 Tylophora tenuis Blume Ptv Patt. 234 Wrightia religiosa Benth. & Hook. f. Pts Patt. 181 3 5 Table 1 . (Continue) Family Scientific name Life form 1 Voucher Asteraceae Eclipta prostrata L. Pth Patt. 350 Balsaminaceae Hydrocera angustifolia Blume Aae Patt. 342 Bignoniaceae Dolichandrone columnaris Santisuk Ptt Patt. 268 Boraginaceae Heliotropium indicum L. Ath Patt. 235 Campanulaceae Lobelia alsinoides Lam. Aae Patt. 453 Cleomaceae Cleome rutidosper ma DC. Ath Patt. 284 Combretaceae Combretum trifoliatum Vent. Ptc Patt. 178 Terminalia calamansanay Rolfe Ptt Patt. 557 Convolvulaceae Aniseia martinicensis Choisy Atv Patt. 236 Merremia hirta Merr. Atv Patt. 244 Dilleniaceae Dillenia hookeri Pier re Ptu Patt. 401 Tetracera loureiri (Finet & Gagnep.) Pierre ex Craib Ptw Patt. 337 Drosearaceae Drosera indica L. Aae Patt. 374 Euphorbiaceae Croton caudatus Geiseler Pts Patt. 215 Shirakiopsis indica (Willd.) Esser Pa/tt Patt. 358 Fabaceae Acac ia pennata Willd. Pts Patt. 567 Aeschynomene indica L. Pas Adenanthera pavonina L. Pts Patt. 456 Derris elliptica (Roxb.) Benth. Ptw Derris scandens (Roxb.) Benth. Pa/tw Derris sp. Pa/tw Flemingia macrophylla (Willd.) Prain Ptu Patt. 566 Flemingia strobilifera (L.) W. T. Aiton Ptu Patt. 197 Sesbania javanica Miq. Pas Patt. 381 Hydrophyllaceae Hydrolea zeylanica (L.) Vahl Aae Patt. 176 Lamiaceae Clerodendrum paniculatum L. Pts Glossocarya linnaei Benth. & Hook. f. Pts Patt. 34 8 Premna annulata Fletcher Ptw Patt. 244 -1 Vitex glabrata R. Br. Ptt Patt. 260 Lecythidaceae Barringtonia acutangula (L.) Gaertn. Ptt Patt. 196 Lentibulariaceae Utricularia auria Lour. Aa f Utricularia bifida L. Aae Patt. 288 Utricularia caeru lea L. Aae Patt. 373 Loranthaceae Macrosolen cochinchinensis (Lour.) Tiegh. Pte Patt. 194 Lythraceae Amma nnia sp. Aae Patt. 177 Lagerstroemia floribunda Wall. Ptt Patt. 362 Lagerstroemia speciosa (L.) Pers. Ptt Patt. 246 Melastomataceae Melastoma malabathricum L. Pts Patt. 189 Menisperma ceae Unknown 3 Ptw Patt. 242 Malvaceae Melochia corchorifolia L. Ath Patt. 275 Microcos tomentosa Sm. Pts Patt. 344 Pantapetes phoenicea L. Aae Sida rhombifolia L. Ptu Patt. 462 Urena lobata L. Ptu Pat t. 239 Moraceae Ficus hispida L. f. Pts Maclura cochinchinensis (Lour.) Corner Ptc Patt. 261 Streblus asper Lour. Pts Patt. 227 Streblus perakensis Corner Pts Patt. 223 Myrtaceae Syzygium sp. Ptt Patt. 355 Olacaceae Olax scandens Roxb. Ptw Pat t. 241 Onagraceae Ludwigia hyssopifolia (G. Don) Exell Aae Ludwigia octovalvis (Jacq.) P. H. Raven Aae Phyllanthaceae Antidesma ghaesembilla Gaertn. Pts Patt. 193 Breynia vitis -idaea (Burm. f.) C. E. C. Fisch. Pts Patt. 195 Bridelia sp. Pts Patt. 272 Flueggea virosa (Willd.) Voigt Pts Patt. 437 Glochidion rubrum Blume Pts Patt. 183 Hymenocardia punctata Wall. Pa/ts Patt. 218 Sauropus cf . rostatus Ptu Patt. 273 Phyllanthus reticulatus Poir. Pts Patt. 438 Phyllanthus urinaria L. Ath Patt. 424 4 5 Table 1 . (Continue) Family Scientific name Life form 1 Voucher Polygalaceae Salomonia longiciliata Kurz Aae Patt. 375 Xanthophyllum eurhynchum Miq. Pts Patt. 221 Polygonaceae Persicaria attenuata (R. Br.) Soják Aae Patt. 174 Ra nuncu laceae Naravelia dasyoneura Korth. Ptv Patt. 225 Rhamnaceae Ziziphus oenopolia (L.) Mill. Pts Patt. 180 Rubiaceae Borreria alata (Aubl.) DC. Ath Canthium horridum Blume Pts Patt. 182 Hedyotis herbacea L. Ath Patt. 409 Kailarsenia campanula (Rid l.) Tirveng. Ptc Patt. 214 Meyna sp. Pts Patt. 269 Mitragyna diversifolia Havil. Ptt Patt. 231 Morinda elliptica Ridl. Ptt Patt. 228 Nauclea orientalis L. Ptt Patt. 441 Paederia foetida L. Atv Patt. 472 Tamilnadia uliginosa (Retz.) Tirveng . & Sastre Ptt Patt. 245 Sapindaceae Allophylus cobbe (L.) Raeusch. Pts Patt. 285 Lepisanthes rubiginosa (Roxb.) Leenh. Ptt Patt. 190 Scrophulariaceae Limnophila erecta Benth. Aae Limnophila laxa Benth. Ath Patt. 507 Lindernia ciliata (Colsm.) Pennell Aae Patt. 372 Lindernia crustacea (L.) F. Muell. Aae Patt. 433 Stylidiaceae Stylidium tenellum Sw. ex Willd. Aae Patt. 508 Urticaceae Pouzolzia zeylanica (L.) Benn. Ath Patt. 563 Vitaceae Leea rubra Blume Pts Patt. 264 Magno liids Annona ceae Uvaria rufa Blume Ptw Patt. 262 Lauraceae Litsea sp . Ptt Patt. 343 Monocots Alismataceae Limnocharis flava Buchenau Aae Patt. 173 Araceae Lasia spinosa (L.) Thwaites Pag Typhonium flagelliforme (Loddiges) Blume Aae Patt. 204 Amaryllida ceae Crinum sp. Pag Patt. 184 Commelinaceae Commelina diffusa Burm. f. Pth Patt. 387 Cyanotis axillaris (L.) D. Don ex Sweet Pth Patt. 232 Murdannia nudiflora (L.) Brenan Pth Patt. 388 Cyperaceae Actinoscirpus grossus (L. f.) Goetgh. & D.A. Simp son Pae Patt. 401 Cyperus babakan Steud. Pae Patt. 405 Cyperus compactus Lam. Pae Patt. 186 Cyperus digitatus Roxb. Pae Patt. 403 Cyperus elatus L. Pae Patt. 449 -1 Cyperus haspan L. Aae Patt. 175 Cyperus imbricatus Retz. Pae Patt. 449 -2 Cyperus pilosus Vahl Aae Patt. 429 Cyperus pulcherrimus Willd. ex Kunth Aae Patt.