170 



HYMENOPHTLLUM CRISPATUM. 



Hooker and Greville. Wallich. 



PLATE LXIX. — 13. 



Symenophyllum sanguinolenium, J. Smith. {Not Swabtz.) 



" fiahellatum, Bbown. (Not Labillaedieee.) 



" atrovirens, Colenso. 



Mymenopliyllum — Membrane-leaved. Crispatum — Curled. 



This pretty species clothes the trunks of Tree Ferns, etc., 

 in Tasmania, and New Zealand. Also a native of Nepal, 

 Ceylon, and Luzon. 



The fronds are broad, erect or curving, smooth, somewhat 

 dense, ovate, acuminate, and tripinnatifid ; the segments linear- 

 obtuse. The fronds crisped, on winged stalks. 



Length of frond from five to seven inches; colour deep 

 green. 



Involucres terminal, occasionally on lateral segments, ovate 

 in form, copious, sessile, free, entire, and two-valved to the 

 base; valves convex. 



Ehizoma as in Hymenophyllum flabellatum, but less elongated. 



There are several forms of this Fern: — 



Var. minus. — Has contracted-oblong fronds, with small fruc- 

 tification. It is from Ceylon. Smaller fronds. 



Var. majus. — Broader fronds and larger fructification. From 

 Luzon. 



Var. Tasmanicum. — From Tasmania. Having shorter and 

 broader involucres. 



Requires to be cxiltivated in a very humid, but airy atmosphere, 

 with a temperature ranging between 40'^ and 65°. 



To Messrs. Backhouse, of York, my thanks are due for the 

 fronds illustrated. 



