212 Ferns of British India and Ceylon. 



with a terminal rooting bud ; fronds 1-2 feel long, 6-9 inches broad, 

 pinnate; pinnse petioled, numerous, narrow lanceolate acuminate, 

 from subentire to deeply lobed ; texture coriaceous ; primary veins 

 from the midrib of the pinna? repeatedly dichotomous at an acute 

 angle into nearly equally strong veins, not anastomosing usually till 

 near the margin, many of them free to the margin ; sori rather large 

 and in two rows half-way between the rachis and the margin, or much 

 smaller and scattered. Wall. Cat. 381. Hook. Syn. Fil. 257. Bedd. 

 F. B. I. t. 45. Clarke, F. N. I. p. 512. 



Himalayas; from Nepal to Bhotan, 4,000-7,000 feet; Khasya, 

 3,000-5,000 feet elevation. 



GENUS LI.- ASPIDIUM. (Swartz.) 



(Aspidos, the indusium being like a shield.) 



Indusium orbicular or reniform, or sometimes irregular and 

 abnormal, being linear and curved, or sometimes absent ; veins 

 compoundly anastomosing with generally free veinlets in the areoles, 

 receptacles compital or often at the apex of the free veinlets ; fronds 

 very various, from simple to tripinnatifid, often membranaceous and 

 flaccid. 



1, Aspidium singaporianum. {Wallich.) Rhizome creeping ; 

 stipes subtufted, those of the fertile fronds 6-12 inches long, fronds 

 1 2 inches or more, 2-4 inches broad, oblong entire, acuminate at the 

 apex, narrowed rather suddenly and then decurrent gradually at the 

 base ; texture herbaceous ; primary veins distinct nearly to the edge, 

 united by transverse arched ories, the areoles of which enclose netted 

 veinlets, the ultimate ones free ; sori numerous, close, 4-6 in a 

 line between the main veins ; indusium peltate orbicular. Nephro- 

 dium (Baker), Hook. Syn. Fil. 296. Bedd. F. B. I. t. 168. 



Singapore and the Malay Peninsula. 

 (Also in the Malay Islands.) 



2. Aspidium vastum. (Blume.) Rhizome creeping, stipes 

 scattered, narrowly winged often nearly or quite to the base, fur- 

 nished with numerous linear subulate brown persistent scales ; fronds 



