185 
Herberta adunca and Campylopus Virginicus ; also on roots of 
Picea rubra. 
It seems to me that the species is distinct from Hypnum re- 
curvans and well-named, maintaining a different habit, less glossy 
in general aspect, more loosely branched and leaves less uncinate, 
with a short pedicel, only 1 cm., while in Hypnum recurvans it is 
usually 2 cm. I have been favored with a portion of the type from 
Sullivant's Herbarium by Dr. Watson. 
In comparison, I find that the cilia, however, are developed on 
James' own specimens and are single, but with a divisional line as 
if two were united. Sullivant figured it without cilia and the 
Manual says * cilia none or rudimentary." 
Hypnum | cylindricarpum, CM. McGrady's Creek, alt. 3,000 ft. 
On old log in fine fruit. Capsules inclined and contracted 
below the mouth. 
Hypnum microcarpum, CM. Banks of the Holston at Marion, alt. 
2,100 ft. In dense glossy mats at base of Tsuga Canadensis. 
Sterile. Falls of the Holston, alt. 2,050 ft. On fallen log in 
dense woods. Fertile. 
Hypnum serrulatum, Hedw. Summit of White Top Mt. alt. 5,678 
ft. On trees with Dicranum fuscescens. ; 
Hypnum rusciforme, Weiss. On Pine Mt., in stream, alt. 4,000 ft. 
In valley between White Top and the Iron Mts., along White 
Top Creek, in sand, alt. 2,600 ft. 
Hypnum acuminatum, Beauv. Nick’s Creek. On ground, alt. 
2,600 ft. Below summit of White Top Mt. alt. 5,500 ft. On 
old logs, below the house. 
VAR. FILIFORME, n. var. Summit of White Top Mt, alt. 5,670 ft. 
On Crategus punctata with Leska denticulata, Zygodon viri- 
dissimus and Radula complanata. A very slender form grow- 
ing in dense wet woods. Branches often 3 cm. long and un- 
divided, leaves serrulate nearly to base, angles decurrent, cells 
rectangular, vein ending above the middle, with the two lateral 
folds faint. Sterile. E. G. BRITTON. 
Hypnum lætum, Brid. In dense mats on rocks in woods. Slopes 
of Pine Mt. near Troutdale, alt. 3,500 ft. Walker Mt., Shannon 
