HYMENOPHYLLUM. 
۰٠ yMENOPHYLLUM EXIGUUM. (Bedd.) Rhizome creeping pilose, stipes about 1-2 line long, pilose at the base, 
fronds + to 4 an inch long by 1-2 lines broad linear-oblong entire or slightly repand at the margin, veins pinnate from a central costa 
simple or forked, spurious venules few but nearly as prominent as the veins not reaching the costa and often not touching the margin, 
never anastomosing ; involucre solitary terminal the base sunk in the frond, valves entire large and spreading receptacle exserted oy | 
included. 
Hab. On trees in dense forests (3—4,000 feet elevation) Wynaad and Coorg. 
Some of the fronds are furnished round the margin with minute brown hair-like appendages, somewhat similar to those met 
with on Trichomanes Neilgherrense but much smaller, they are not found on all the fronds and are probably minute fungi, the spurious 
venules in this species are few in number and nearly as prominent as the real veins, in Trichomanes Neilgherrense they are many times 
thinner than the veins (so fine as only to be visible under a lens,) very numerous and often connected by a waved line near the margin, - 
they are not represented in the figure of that species (Plate VI. Ferns of $, India). 
The species here figured has quite as much right to be considered a Trichomanes as a Hymenophyllum as its involucre has a 
lengthened tube, but I have placed it in Hymenophyllum on account of its being distinctly 2 valved. Whilst this sheet was passing 
through the press I have received what appears to be the same species from Ceylon collected by Mr. Beckett in the Telganum quage in 
the Central Provinces, the involucres of the Ceylon Specimen are quite exserted beyond the apex of the frond and not sunk in the margin, 
but Trichomanes Henzaianum differs in the same way the involucre being sometimes quite exserted and at other time quite sunk in the 
frond. | 
PLATE No. CCLXXV. 
