TRICHOMANES. 53 



pletely developed. The young fronds, in 

 their earlier stage and before at all evolved, 

 frequently look dry, brown, and dead. Of 

 the character of the genus Hymeno- 

 phyllum, but more compound in form. 

 The seed- cup, where existing, takes the 

 place of a fork of the pinnule, whether 

 near to or distant from the main stem, 

 entire, and of a longish, equable, shape, 

 like the letter U rather drawn out ; having 

 a spike or hair projecting from its centre. 

 The variety of Andrewsii is narrower, long- 

 er, and more drooping. June. Evergreen. 

 Only in Ireland. Creeping along the face 

 of dripping rocks and caves. Pendulous. 

 Easy and satisfactory in cultivation under 

 glass, away from the light, with frequent 

 watering, and not too deeply set in. Does 

 not absolutely require, but thrives best 

 with, pebbles at the roots and elsewhere, 

 and in a warm room. A very lovely plant, 

 and when wetted, one of the, if not the, 

 most beautiful of the whole tribe. This, 

 with the Hymenophyllums, desiring so 

 much more moisture than the rest, and so 

 little soil, it were desirable to give them a 

 glass plate and cover to themselves. 



