Ae TR es ee pe OT at Se a Seen Unie Se cage Se ae og ey eek Sha 
anal pai A ca Nh Ae a al cia ee eh 8 ee a a inci ie Le te ce eS 
U 
76 
TRICHOMANES mempranacea. 
Membranaceous Bristle-Fern. 
s 
s CRYPTOGAMIA FILICES,—Nat. On. FILICES. 
Gen. Cuar.—Sorus marginalis receptaculo columnari sepius setiformi in- 
sertus. Indusium urceolato-campanulatum, monophyllum, erectum, so- 
rum includens.—VW. 
Trichomanes membranacea ; frondibus subsessilibus oblongis flabelli- 
formibusque integris incisisve, basi cuneatis, marginibus (sterilibus) 
peltato-squamosis. : 
T. membranacea, Linn. Sp. Pl. p. 1560.—Swartz, Syn. Fil. p. 141.—Sw. 
Fl. Ind. Oce. v. iii. p. 1724.—Witipv. Sp. Pl. v. 5. p. 499.—Smira, in 
Rees’ Cyclop. > 
Filix Hemionitis Lichenoides americana fungi auriculis Czsalpini emula, 
radice repente, Piux. Alm. p. 155. t. 285. f. 3. 
Caudex several inches in length, creeping, flexuose, tomentose, brown, throw- 
ing + lh eee ] Te y C1, We Fronds several 
from the caudex, varying remarkably in size, and scarcely less so in form, 
from half an inch to three inches long, oblong or fan-shaped or rounded, 
with their margins nearly entire, or cut into more or less deep, oblong 
and very irregular lacinie ; the base, however, always cuneate and entire. 
In the sterile fronds, and in the sterile segments of the fertile ones, the 
margin is beset with numerous small, peltate, umbilicated, pale brown, 
sessile, membranaceous scales, which appear to be either abortive invo- 
lucres, or themselves young fructifications, and corresponding with the 
by Sir James Suir to a Bat’s wing. 
Involucres (indusia, W.) at the extremity of the segments of vod oe ae 
merous, narrow, urceolate, thick and fleshy, immersed 08 the lips, : 
. ; incl within the urceolus, 
ing the somewhat expanded mouth. Sori inclosed wi “ : 
inserted upon the somewhat swollen base of the long, eee emits 
YO. F, 
