Plectocomiopsis. PLECTOCOMIOPSIS. 47 
to keep that shape remains also to the last period of the life of the plant, in its 
uppermost flowering end. A trigonous stem. is a structure of very rare occurrence in 
palms, only another case approaching that of Plectocomiopsis having been observed 
by me in a spadix-bearing specimen of the African Eremospatha macrocarpa Wendl. 
' GEOGRAPHICAL DISTRIBUTION.—Plectocomiopsis geminiflorus has a. relatively wide 
distribution, being found growing from Lower Burma down throughout the entire 
Malay,Peninsula and in Sumatra ; it is also represented by local varieties in Billiton 
and Borneo. P. Wray and P. dubius are restricted to the Malay Peninsula. P. 
floribundus is a Cochin-Chinese species, related however to P. pradoxus growing in 
Pegu. 
PLECTOCOMIOPSIS. 
KEY TO THE SPECIES. 
A; Flowers ( d and 2 ) subcoriaceous. 
* Leaves of the upper part of the plant having a very short petiole. Male 
flowers globose-ovoid. Female flowers broadly ovoid and obtusely tri- 
gonous, bluntish. Fruit with scales in 35 vertical series 
P. geminiflorus Becc. 
f Leaflets having the ‘mid-costa smooth or with a few rigid 
subspiny bristles. ‘Partial 9 inflorescences composed of not many 
thick branches furnished with flowers from near the base. The. 
corolla of the female flower covered with thickish hairs. 
I. P. geminiflorus Becc. (forma. typica). 
|» Lower Burma, Malay Peninsula—Sumatra. 
tf Leaflets with long bristles on the Jnid-eosta. Flowering branch- 
lets more slender than in type. Flowers as in type. 
P. geminiflorus var. billitonensis Bece. 
—Bbilliton. 
fff Leaflets with long bristles on the mid-costa. Partial 9 inflores- 
.cences with. numerous branches having an elongate pedicellar part 
devoid of flowers. Female flowers Ic the corolla covered with 
small. pellucid scales. 
P. dendi iesus van. borneensis Becc. 
— Borneo. ; 
** Leaves of the upper part of the "plant having a long petiole. Male 
flowers narrow, clavate. Female flowers cpl di elliptical, acumi- 
nate. Fruit with scales in 24 vertical series. ` 
2. P. Wrayii Becc.— Malay Peninsula. 
