85 331 



and the third does not agree exactly with the original specimen, although the 

 sori in a segment especially the hasal are somewhat removed from the margin, 

 at best described as supraniedial, while in D. cheilanthoides they are placed 

 closely to the sinus. 



Nephrodium decrescens Bak. from Columbia: Bogota, 2800 m., Lindig n. 292 

 (HB!), is a more different form, which I prefer to place here as a variety of D. 

 cheilanthoides. It differs mainly from the type by its margins being not at all 

 or only faintly revolute and not covering the sori. Indusium small, deciduous, 

 glabrous or a little glandulose. Texture somewhat thinner. As this form is ditTerent 

 from the original A. decrescens I call it 



D. cheilanthoides (Kze.) var. subplana. 



The Costa Rican specimens referred above to this species differ in being 

 eglandulose. I have named that form var. eglandulosa, and it is shortly described 

 in Bull. Boiss. 1907. 262. 



