M A T E R IA L Aโ-TD METHOD
A s tu d y o f Khon Kaen U n iv e r s it y Campus F lo r a was c ond ucted fro m A p r il 1975 to M arch 1976. The w o rk was s ta r te d w ith a g e n e ra l s u rv e y o f th e w h o le campus w h ic h a re p r a c t ic a lly d iv id e d in t o z o n e s . The u n d is tu rb e d zonal- a re a s s e le c te d f o r s tu d y a re by names M o re -D in -D a e n g , H ong-bang and S r i- T a n . The g e n e ra l p hysiog no m y o f each zone was o b s e rv e d . F ie ld t r ip s w ere made in e v e ry season
(n o t e v e ry m o n th , some m onths w ere s k ip p e d ) and th e
c o lle c t io n o f sp ecim ens had been done in a l l s tu d ie d zones The in tro d u c e d p la n ts o f o rn a m e n ta l v a lu e and f o r a g r i
c u lt u r a l p u rp o se w ere a v o id e d . The d is t r ib u t io n and s p e c ie dom inance w ere a ls o re c o rd e d .
The c o lle c te d sp ecim en s w ere th e n p re p a re d and w orked o u t f o r id e n t i f ic a t i o n th ro u g h l it e r a t u r e s and c o m p a ris o n w ith th e known sp ecim ens in th e Two T h a i H e r
b a r ia E .K . and '•ไ.:':..F , , P u ch sp ecim en s a re supposed to be d e p o s ite d in th e new Khon Kaen U n iv e r s it y H e rb a riu m , บ. If. 1 H .X .F . and H e rb a riu m o f C h u la lo n g k o rn U n iv e r s it y .
