GEXUS XV. 
TRICHOMANES, Linnaeia. 
BRISTLE FERX. 
6m. CHAR. Son marginal vertically oblong ; tpare- 
cases compressed, sessile around columnar filiform re- 
ceptacles (which are extramarginal extensions of the 
veins) within elongated urn-shaped involucres of the 
same pellucid texture as the frond ; receptacle more or less 
exserted. Veins direct free, simple or forked. 
Oar native Trichomanes is the only European species 
uf an extensive and extremely beautiful group of ferns 
which is very abundant in the tropics. 
The name is an ancient Greek word supposed to have 
been applied to the fern called Aspleruvr* TricAonutrus 
by Linnaeus. 
1. Tricbomanes radicans, Stoartz. European 
Brittle Fern. Fronds tri-qnadri-pinnatifid pendulous, 
tmngular ovate or elongate, glabrous ; segments linear, 
enure, or obtusely bifid ; involucres cylindrical scarcely 
no- lipped, solitary in the axils of the upper segments, 
more or less winged. 
r*icHojtAM3 &ADICAXS, Swartz : Hook. Sp. PEL i, 125: Bab. 
Man. 415: Hook and Am FL 576 : Florigr. Brit, iv, 119. TMCHO- 
iLiXES sptcKKCM. WUlcenow : Newm. 305 TWCHGMAXES 
BILVISETCM, B. Brown: Sm. Eng. FL iv., 311: Franc. 62-Tmi- 
CIOMAXES AxDKewsn. Xewm. Ferns, 14. TmicnoitSES tro- 
MCM. Smith. TmiCHirMAXES ALATVU Hooker Fl Lend. t. 53. 
7BICBOMASES PTXIDITCBCIL Hudson. HnfESOPHTU.CK ALllCM. 
Smith, Eng. Hot. 1417 Ou,lnoGLossnt AI^TCM, Ltavsuii. 
