102 Ferns of British India and Ceylon. 
the longest ; invoiucres subintramarginal, continuous or here and 
there interrupted, broad, flat, membranaceous, brown, close-pressed, 
frequently lobed and crenated and transversely wrinkled. Wall. 
Cat. p. 89. Cheilanthes nitidula. Hook. Sp. Fil. \i. p. 112 ; Syn. Fil. 
p. 149. Bedd. F. B. I. t. 222. (The involucres are sometimes con- 
tinuous as in Pteris, sometimes interrupted and quite like Cheil- 
anthes.) 
Kashmir, 3,000-6,000 feet, frequent and plentiful to Chumba, 
scarce eastwards to Kumaon. 
5. Pell^a boivini. {Hook.) Stipes 4-8 inches long, erect, 
naked, black, polished, very brittle ; fronds 6-9 inches long, 4-6 
inches broad, deltoid to lanceolate, pinnate to tripinnate ; pinnae 
erect-patent or spreading gradually smaller upwards ; ultimate pin- 
nules broadly ovate in the more simple forms and .linear-lanceolate 
in the more compound, cordate or rounded at the base, very coria- 
ceous, pale and dull beneath; both surfaces naked; veins sunk in the 
frond ; sori in a continuous line round the segments ; involucre 
membranous, \ a line broad. Hook. Syn. Fil. p. 149. Bedd. F. S. 
I. i. 36 (under Pteris). 
Nilgiris, Sispara and on the ghat, 4,000-5,600 feet ; Anamallays, 
4,000 feet, dry rocky places ; Travancore and Tinnevelly Mountains ; 
Ceylon. The Nilgiri and Anamallay plant is the more simple 
form (pinnate or bipinnate), as represented in the figure ; the 
Travancore plant is much larger and more compound, being tri- 
pinnate. 
(Also in Madagascar and the Mauritius.) 
§ § § Veins usually hidden ; indusium so narrow as to be soon hidden by 
the sori. 
6. Pell^:a falcata. {Fee.) Rhizome wide creeping ; stipes 
3-6 inches long, strong, erect, more or less pubescent and scaly ; 
fronds 6-18 inches long, 1-2 inches broad, linear-oblong, simply 
pinnate; pinnae 10-20 on each side, nearly sessile, \-\ inch long, 
\-\ inch broad, lanceolate or lanceolate-oblong, usually mucronate, 
often slightly falcate, cuneate, or dilated and cordate at the base: 
