KEYS TO THE FERNS OF BORNEO 
415 
c2. Frond wider, and usually over 20 cm. 
long. 
d. Costa broad and black near base, not 
reaching apex 
rfi. Costa not so stout below, but running 
to apex 
m. Sorus marginal, in a groove of which the 
lips are not very unequal. 
b. Frond short-stalked or sessile. 
c. Frond not over 1.5 mm. broad 
c r . Frond 1.5—3 mm. broad 
02. Frond usually 3—10 mm. broad. 
d. Sori confined to upper part of frond 
d*. Sori long. 
e. Fronds narrowed immediately from 
the widest point to the ends 
£i. Sides of frond parallel for a con¬ 
siderable distance 
b 1. Stipe usually about 10 cm. long 
4. V. scolopendrina. 
5. V. lineata. 
6. V. lloydiifolia. 
7. V. angustifolia. 
8. V. crassifolia. 
9. V. ensiformis. 
10. V. elongata. 
11. V. zosteriofolia. 
I. V. HIRTA F£e. 
“ Borneo,” collected by A. R. Wallace. 
Endemic. 
F£e’s figure is a good representation of Monogramma 
dareicarpa. 
2. V. longicoma Christ. 
Dutch Borneo, Sarawak. 
Endemic. 
3. V. pumila (Mett.) Kuhn. 
“ Borneo,” collected by Wallace; Dutch Borneo (?) 
collected by Winkler. 
Endemic. 
4. V. scolopendrina (Bory) Thwaites. 
Sarawak, Dutch Borneo. 
Africa and India to Polynesia. 
5. V. “ lineata ” (L.) Smith. 
Common. 
“ Pantropic.” 
This “ species ” has been made the waste-basket of 
its group. Typical V. lineata in an American fern. 
