■|]!1(ii()mam;s. 115 



GENUS XV. 



TRICHOMANES. Linn.^us. 



Ai-THOUGII this genus is represented in Great Britain by a 

 solitary sjiccies, Sir W. J. Hooker has described no less than 

 eighty-seven species in his "Sjjecies Filicnm," and of these 

 thirteen are found in Jamaica, eleven in Java, eight in 

 Guinea, seven in Brazil, five in Bourbon, five in the Mauritius, 

 five in New Zealand, four in Madagascar, and four in Peru, 

 and the remaining twenty-five are one or more of them to be 

 met with in Ceylon, Mexico, Nepal, Cayenne, Orinoco, Chiloc, 

 Sierra Leone, Barbadoes, West Africa, East Indies, West Indies, 

 Onalau, British Guiana, or the Islands of Falkland, Luzon, 

 Juan Fernandez, Sandwich, Philippine, Pacific, or Seychelles. 



This genus is widely spread over the warmer regions of the 

 world. 



Trichomanes is closely allied to Hijmenophijllum, yet easily 

 recognised from that genus. The distinguishing feature in 

 Trichomanes is the peculiar entire urn-like cu]i in which the 

 spore-cases are developed; whilst in HymenophijUum this is 

 split down to the base into two divisions. 



