252 FERNS : BRITISH AND FOREIGN. 
24. H. lineare, Sw. H. trifidum, Hook. et Grev. Ic. Fil. t. 196. 
H. elegans, Sjpreng. — West Indies and Tropical 
America. 
25. H. sericeum, Sw. {Plum. Fil. t. 73). — West Indies and 
Tropical America. 
26. H. seruginosum, Carm. ; Hook. Sp. Fil. t. 34 A . — Tristan 
d’Acunlia, New Zealand. 
138. TRICHOMANES, Linn. 
Vernation fasciculate and erect, or uniserial and sarmentose. 
Genus 138. — Fertile frond, natural 
size. No. ll. 
Fronds varying from simple to 
decompound-multifid, membra- 
naceous and pellucid, smooth, 
or bearing simple, forked, or 
stellate hairs. Veins simple or 
forked, free. Sort terminal, 
often sub-pedicellate. Indu- 
sium urceolate or tubular. Re- 
ceptacle continued beyond the 
sporangia and mouth of the 
indusium, often elongated and 
filiform. 
* Vernation uniserial, 
sarmentose. 
1. T. reniforme, Forst.: 
lloolc. et Grev. Ic. 
Fil. t. 31 ; Hook. Fil. 
Exot. t. 76. — New 
Zealand. 
2. T. membranaceum, 
Linn. {Plum. Fil. 
t. 101,/. A); Hook. 
Exot. FI. t. 76. — 
West Indies. 
3. T. punctatum, Poir.; 
Hook, et Grev. Ic. 
Fil. t. 236. — West 
Indies. 
