252 FERNS : BKITISH AND FOREIGN. 



24. H. lineare, Sw. H. trifidum, Hook, et Grev. Ic. Fil. 1. 196. 



H. elegans, Sprang. — West ladies and Tropical 

 America. 



25. H. sericeum, Sw. {Plum. Fil. t. 73). — "West Indiei and 



Tropical America. 



26. H. seruginosum, Carm. ; Hoolc. Sp. Fil. t. 34 A. — Tristan 



d'Acunha, New Zealand. 



138. TRICHOMANES, Idim. 



Vernation fasciculate and erect, or uniserial and sarmentose. 



Fronds varying from simple to 

 decompound-multifid, membra- 

 naceous and pellucid, smooth, 

 or bearing simple, forked, or 

 stellate hairs. Veins simple or 

 forked, free. Soi-i 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, 

 sarmenlose. 



1. T. reniforme, Forst.s 

 Hoolc. et Grev. Ic. 

 Fil. t. 31 ; Hook. Fd. 

 Exot. t. 76. — New 

 Zealand. 



2. T. membranaceum, 



Linn. (Plum. Fil. 

 t. 101,/. ^1); Hook. 

 Exot. Fl. t. 76. — 

 West Indies. 



S. T. punctatum, Poir. ; 

 Hoolc. et Grev. Ic. 



tauisg.-Ftatie frond, nat«™ f* *■ 236. -West 



sue. No. ii. Indies. 



