Ferns of British India and Ceylon. 219 
more specimens are gathered, I consider it safer not to lump it 
with that. Mr. Clarke says he does not see how it differs from 
polymorphum, var. macrocarpum, but he has made a new 
species of that. Both Baker and Clarke make two sections of 
Sagenia, one with " sori in more than two 'rows between the principal 
veins, often irregularly scattered," the other with " son in two rows 
between the principal veins," both forms occur in this species and in 
polymorphum, and more or less in semibipinnatum and other species, 
so the definition is only misleading. 
9. AspiDiUM HETEROCARPUM. {Bedd) Rhizomc creeping 
widely; stipes soUtary, erect, with 
lanceolate-linear brown persistent 
scales at the base ; pinnate, very 
much as in polymorphum, but 
lower pinnae not bifurcate ; pinnae 
4-8 inches long, narrow-lanceo- 
late, entire, caudate at the apex, 
subsessile or very shortly stalked, 
gemmiparous in the axils ; main 
veins distant to nearly the margin, 
areoles copious with free included 
veinlets ; sori very small on 
the netted veins, much scattered; 
indusiurn reniform or horseshoe- 
shaped, or sometimes curved or 
linear, as in Athyrmm and Asple- 
nium. Sagenia heterocarpa, aspidium he^ocarpum. [Bedd.) 
Bedd. F. B. I. t. 47. Sagenia 
heterosora (Baker), Hook. Syn. FiL 504. Clarke., I. c. 537. 
Assam and Chittagong, in wet flats near rivers, forming large 
groves about 6 feet high. 
10. Aspidium decurrens. (Presl.) Rhizome creeping ; stipes 
winged nearly or quite to the base, furnished with numerous linear- 
subulate brown persistent scales; fronds often 3 feet long, dimor- 
