36 
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.) 
II. Hymenophyllum Levingii. {Clarke^ Very delicate in 
texture ; stipe i 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. t. xxix, 
fig- 3- 
Sikkim ; Yoksun and Neebay, 7,000 feet elevation. 
GENUS XIIL— 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 fihform, 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. 
I. TRICHOMANES MoTLEYi. {V. D. B.) Rhizome creeping, 
more or less tomentose ; fronds very small, sessile, or shortly 
stalked, about i 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 
