120 AN ACCOUNT OF A BOIANICAL EXPEDITION 



Distrib. Burmah south to Malacca, Java, Sumatra, 

 Borneo. 



P. stipulacea, Wall. Trang (Kunstler). 



Distrib. Malay peninsula and Sumatra. 



P. Curtisii, King and Gamble. Kedah, Gunong Geriang ; 

 Lankawi, Kwah (Curtis), Pedis, Ginting Kabok (14991) 

 Bangtaphan (Keith). Distrib. Penang. 



The Lankawi plant is hairy on the leaves, the other 

 specimens glabrescent. The cyme is much more spread 

 out in the Perlis and Kedah plants, but I think all are 

 forms of the species. 



Psychotria siamensis, n. sp. Erect shrub, branches woody, 

 smooth. Leaves coriaceous, lanceolate, acuminate short- 

 ly, or not at tip, base narrowed glabrous, drying light green 

 above, grey beneath, shining above, beneath scurfy pale, 

 nerves 11-12 pairs conspicuous on both surfaces, elevate 

 beneath, midrib prominent, 4| inches long, If inch wide, 

 petiole thick, i inch long. Stipules connate into a tube with 

 two shorter sub-triangular blunt points, soon deciduous. 

 Panicle dense elongate, 2 inches long with very short 

 branches, flowers small, numerous, crowded, drying black. 

 Pedicels very short calyx cup-shaped, almost entire with 

 five small points. Corolla twice as long, tube short cylin- 

 dric, lobes ovate, acute, half as long 5, mouth of tube full 

 of white hairs, stamens exsert, anthers linear, oblong, 

 obtuse. Fruit globose, small, i inch long or fully ripe 

 oblong narrowed at the base faintly six.ribbed. 



Setul heaths (15096) Lankawi (Curtis, 2631). 



This plant has the form and colouring of the 

 leaves as in Ps. Griffithii, but is remarkable for the in- 

 florescence being spicate in form and not umbellate as in 

 most other Psychotrias, consisting of a 2 inch rachis 

 elongating to 4 inches in fruit, with crowded short cymes 

 on short peduncles. 



Jour. Straits' Branch' 



