1. A new record and lectotypification of persicaria viscosa (polygonaceae) in thailand
Chortip KANTACHOT, Pranom CHANTARANOTHAI and David A. SIMPSON

2. A new species of aulacospira (pulmonata- stylommatophora- pupillidae) from eastern thailand
Pongrat DUMRONGROJWATTANA

3. First record of the genus schistoloma kobelt, 1902 (prosobranchia- pupinidae) in thailand
Sakboworn TUMPEESUWAN AND Somsak PANHA

4. Glochidium shell morphology of solenaia khwaenoiensis panha & deein, 2003 (bivalvia- unionidae)
Gridsada Deein, Chumnarn PONGSRI, Parinda RATTANADEANG, Rujiporn PRATEEPASEN and Somsak PANHA

5. Podosordaria leporina (ell. & ev.) dennis (ascomyceta- xylariaceae)- a new record for thailand
Eakaphun BANGYEEKHUN

6. Pollen morphology of the tribe vernonieae (compositae) in thailand
Sukhonthip BUNWONG and Pranom CHANTARANOTHAI

7. Thorea siamensis sp. nov. (thoreaceae- rhodophyta) from thailand
Siripen TRAICHAIYAPORN, Taweesak KHUANTRAIRONG and Shigeru KUMANO

8. Three new records of premna l. (lamiaceae) for thailand
Charan LEERATIWONG, Pranom CHANTARANOTHAI and Alan PATON

9. Two distinctive color patterns of the himalayan newt tylototriton verrucosus (urodela- salamandridae) found in thailand and its implication on geographic segregation
Porrawee POMCHOTE, Putsatee PARIYANONTH and Wichase KHONSUE

10. Two new records of elsholtzia willd. (lamiaceae) for thailand
Bhanubong BONGCHEEWIN and Pranom CHANTARANOTHAI