CHAEACTEES OF TRIBES AND GE^'ERA. 151 



H well long, 6 to 12 jmirs, oblong elliptical, short peiiolate, 

 chtisclij .sericeo sqtiamose. Veins uniform, auastomosiiig toicards 

 the margin. Sporangia obscure, hidJen^ by the silkij scpuamcv. 



H. vestita, /. Sm. {Gramviitis, Wall, Bcdd. F. Brit. Ind., 

 pi. 15-1) ; H. Muelleri, /. Sm. (Oymnogramma, Hoot,:.') ; 

 H. aureo-nitens, /. Sni. (_Acrosticdmm, Hook.) 



Obs. — The fine silky hairs and squamiB common to these 

 three species is snfBcient to indicate that they are naturally 

 allied ; the latter, however, difiers in having- two kinds of 

 fronds, the sterile being simple, oblong spathulate, and the 

 fertile pinnate. 



In the " Species Filicum," H. Muelleri is described as 

 having free veins, but in the specimens which 1 have 

 examined I found them to be netted. 



These three species are very local, the first being- a native 

 of Nopal, the second of Queensland, and the third found 

 onlj' in the Galapagos. 



*** Cardinitis. 



Caudex decumbent, sub-sarmeniose, short. Fronds slip! fate, 

 cordate hastate, firm, smooth. Sori copious, contiguous, be- 

 coming confiuent. 



H. cordata, Eo.cb. (v v.) 



Throughout India, the Malay, and the Philippine Islands. 



Obs. — For H. GriffUhii, Hooker, and Wilfordii, Hook., see 

 Diciijocline ; and for H. ciirifolia, Hook., see Anetium. 



65.— Stngramma, /. Sn;. (1845). 

 Gymnogramma spi.. Hook. Sp. Fil. 

 Vernation uniserial, sarmentum short. Fronds stipitate, 

 contiguous, smooth, entire, simple, linear lanceolate, oblong- 

 elliptical, or rarely pinnate, 6 to 12 inches long. Vei}is 

 forked close to the mid-rib, venules direct parallel, their 



