TRICHOMANES VITTARIA. 137 
On Tricnomanes VITTARIA, De Cand. By W. J. H. 
(With a fig. TAB. V.) 
AMONG the more interesting plants in Dr. Hostmann's 
collection from Surinam, to which allusion is made at p. 97 
of this volume, I find a most beautiful Fern, quite new to me, 
but taken up by Poiret in the Encyclopédie Méthodique, 
Partie Botanique, vol. 8, p. 65, under the name of Tricho- 
manes Vittaria, De Cand. Herb. ; and, much more recently, 
the plant has been published by Dr. Splitgerber, in an Essay 
on the Ferns of Surinam, as a variety of Trichomanes flori- 
bundum, Humb. et Bonpl. (and Hook. et Grev. Ic. Fil. 
tab. 9.) The latter is a pinnated fern, with all its pinne 
elevated upon a long stipes; the latter, a simple one with a 
short stipes; and although I possess copious specimens of 
T. floribundum, from various localities, and not a few of 
T. Vittaria, communicated by Dr. Hostmann, yet the two 
preserve all their respective characters, and I am still in- 
clined, without further evidence to the contrary, to retain 
the Surinam plant as a truly well-marked species, and one 
ofthe tallest and finest in the whole of the most beautiful 
genus to which it belongs. It may be thus characterized : 
Trichomanes Vittaria ; stipitibus cespitosis brevibus pilis 
rigidis paleaceis scabris, frondibus elongatis simplicibus li- 
nearilanceolatis venosis, venis parallelis. exsertis copiose 
soriferis, indusiis cylindraceis basi attenuatis breviter bila- 
biatis, columellis (fragilibus) longe exsertis. 
Trichomanes Vittaria. De Cand. Herb.— Poiret, in Encycl. 
Meéth. Bot. v. 8, p. 65. 
= Trichomanes floribundum, B. Vittaria. Splitgerber, Fil. 
_ Surinam, in Tydschr. voor Nat. en Phys. v. 7. p. 440 
Has. Cayenne. (Herb. de Candolle.) Surinam. Dr. Splitger- 
= gerber, Dr. Hostmann. (Herb. Sur. n. 206.) 
. . Radix fibrosa, fibris descendentibus, simplicibus, flexuosis, 
. rigidis. Stipites cespitosi, erecti, 2-4 uncias longi, penne 
passerine: vix crassitie, fusci, rigidi, parce pilosi, hinc sulcati, 
pilis sparsis, rigidis, paleaceis, patentibus. Frondes sesqui- 
