Descriptions of the Species. 
S3 
9. Trichomanes muscoides. Sw. Var. 
Plate CXLV. Fig. 2. Nat. size. c part of frond, enlarged. 
Mr. J. M. Wood writes me — “In 1887 I gathered a Tricho- 
manes, which I at the time took for T. Quercifolium, plants of 
which I wanted for a correspondent at home. It was put into a 
small tin, and posted without examination, reached home in good 
order, and was found not to be Quercifolium. I much regret I 
have no specimen. My correspondent wrote me, July 28, 1887 — 
£ It is exactly like some which were sent me from Singapore as T. 
muscoides, so I sent a bit to Kew. Mr. Baker says it is certainly 
not Quercifolium, nor is it typical muscoides, so he calls it a 
variety of the latter.’ ” 
T. muscoides is distinguished from T. pusillum by having the 
involucre sunk into the frond with only the mouth free, and that 
surrounded by a rim, but hardly two lipped. The frond, like that 
of T. pusillum, varies considerably in outline ; sometimes lanceo- 
late lobed ; more frequently when full sized obovate or oblong, 
with a cuneate base ; a half to one inch long, a quarter to a half 
inch broad, with a slender stipe a half inch or more long, and 
either entire or divided along the margin into several short 
rounded lobes. Sori terminal on the veins in the upper lobes, 
sunk entirely into the lamina with a free spreading rim, hardly two 
lipped. When young the fronds are set with simple or stellate 
hairs which soon disappear. The stipe is continued through the 
frond as a strong mid-rib, pinnately forked into the lobes, and the 
strongest again forked or pinnate. Besides these veins there are 
numerous parallel venules not connected with these primary veins, 
but connected along the margin by a more or less distinct 
marginal vein. The above description and figure are from speci- 
mens from Fernando Po, kindly forwarded to me from Kew. 
(Trichomanes digitatum. Swartz. 
Plate CXLV. Fig. 3. Nat. size, d margin magnified. 
Rhizome very slender, wiry. Frond one to two inches long, 
one inch broad, on a wiry stipe one inch long or less ; very irregu- 
