April 9, 1911, 
My dear Piss £ay:- 
I have been frying to look up those names in the 
Cat. 3ry. & Pterid. of Pa. I fail to find any trace of the first 
four names (Mollin viridula stenocarpa, Barbula unguiculata lanceo- 
lata, Barbula unguiculata stricta, Astrophyllum euspidatum elatum) 
except in the Pa. Cat. This may mean that ir.y rack index is incom¬ 
plete or it rcay mean that the names are new. 
The last name (Amblystegium irrignum spinifolium) appears in 
the second ±sc edition of 71. P. Shipper's Synopsis Muse. Huron. 
(1876) page 713. 
Am sorry that I can not say any more definitely in regard to the 
first four names. 
Very truly yours, 
