206 The Botattical Gazette. [July, 



collection, I hope to study the remaining North American 

 members of the genus shortly. 



Barbula MEGALOCARPA Kindb. — This is the same as B. 

 ruralis var. gigantea Aust. MS. It is hardly worthy even of 

 varietal rank. Indeed B. ruralis is described by Limpricht 2 

 as having the awn often reddish and the leaves "meist mit 

 vorgezogener, scltcn gerundeter oder ausgerandeter Spitze' 

 characters on which Kindberg chiefly bases his B. megalocarpa. 



W E 



J 



Holzinger at Winona, Minn., the cilia are as strongly ap- 

 pendiculate as in any Eu-Bryum. Of course such a statement 

 without qualification would simply throw doubt upon the de- 

 termination. But in this case there can be no mistake. 



Leaves from the very perichaetium whose fruit was examined 

 were used. 



Atrtchum ANGUSTATUM Br. & Sch. — Intermediate forms 

 between this species and A. undulatum Beauv. are not un- 

 common, and some specimens from Washington, D. C, show 

 lamellae as much as 9 cells wide ! One of the striking features 

 of A. Sclwyni Aust, of which abundant material has .lately 

 been received from the north-west, is the wide lamella?, but 



they do not much surpass those on the specimens just re- 

 ferred to. 



HYPNUM (Thuidium) pvgmaeum S. & L. — The stems of 

 this species are described as papillose. These "papilla?" are 

 really short, 2— 4-celled, papillose, filiform, rudimentary para- 

 phylha. They resemble in many ways most of the paraphyl- 

 ha of H. minutulum, but are less developed. To call them 

 "papilla;" is a misuse of the word. 



HYPNUM (Claopodium) RAMULosum' Hampe. — I think it 

 probable that this is identical with Hooker's H. crispifolium. 

 This opinion is not based upon a comparison of specimens 

 for they are inaccessible, if indeed they exist. But authentic 

 specimens of H. crispifolium agree perfectly with Hampe's (or 

 Mullers) description.* Moreover this species is common in 

 the region from which the supposed H. ramulosum comes, 

 while that has never been collected but once. Specimens 

 under this name in the James herb arium from Marin co., 



• Die Laubmoose (Rabenh. Krvpt. -Flora iv \ \ fiST 

 » Mueller: Synopsis Muse. ii. 486. ' ' '' 



