$6 Ferns of British India and Ceylon. 



Ceylon, central provinces ; Tinnevelly on the Chokampatty hills, 

 5,000 feet ; Penang. 



(Also in Java, Borneo, Fiji, and Philippines.) 



n. Hymenophyllum Levingii. {Clarke.) Very delicate in 

 texture ; stipe 1 inch, with moniliform hairs ; frond 1-2 inches long, 

 more or less covered with moniliform hairs, narrowly oblong, not 

 crisped, pinnatifid to the winged rachis ; primary segments 1-4 

 lobate, ultimate segments oblong, remotely serrate, their midrib with 

 many hairs and lanceolate scales of the same texture as the frond ; 

 involucres usually 1-2 at the end of the segment, small glabrous 

 subquadrate ; valves separating nearly to the base entire or slightly 

 toothed at the apex. Clarke, F. of North India, p. 439. /. xxix. 



fig- 3- 



Sikkim ; Yoksun and Neebay, 7,000 feet elevation. 



GENUS XIII— TRICHOMANES. {Smith.) 



{Thrix, a hair; manos, soft.) 



Sori marginal, always terminating a vein, more or less sunk in 

 the frond, involucre monophyllous, tubular, closely corresponding 

 with the frond in texture, the mouth truncated or winged, or slightly 

 two-lipped ; receptacle filiform, elongated, often considerably exserted 

 beyond the mouth of the involucre, capsuliferous principally at the 

 base ; capsule sessile, depressed, surrounded by an entire broad 

 nearly transverse ring, bursting vertically. Like the last genus in 

 habit of growth and delicacy of texture. 



1. Trichomanes Motleyi. {V. D. B.) Rhizome creeping, 

 more or less tomentose ; fronds very small, sessile, or shortly 

 stalked, about \ inch broad, cordate-orbicular, sometimes some- 

 what lobed, sterile ones nearly entire, fertile ones with a deep apical 

 sinus ; veins in the sterile fronds radiating from the base without any 

 distinct central costa, but a distinct costa is present in the fertile 

 fronds ; spurious veins indistinct, a distinct marginal band ; involucre 



