149 
21. ORTHOTRICHUM CUPULATUM, Hoffm. 
As we have already shown, this species is not definitely known 
from the Eastern States. We have three Western specimens Xe) 
named: J.B, Leiberg’s No. 304, from calcareous ledges, Lake Pend 
d’Oreille, Idaho; Macoun’s, from’ Arrow Lake, British Columbia, 
on rocks; and Howell's, No. 10, from Steens Mountain, Oregon, 
May, 1885. Also recorded by Lesquereux, collected by Bolander. 
“On metamorphic limestone rocks, near the Russian River, 
Ukiah.” se) 
More material and study is required to learn the range of this 
Species, 
22. ORTHOTRICHUM URNIGERUM, Myrin. Coroll. Fl. Upsal. 71 (1834). 
Type European. “ On silicious rocks of mountainous regions 
in Switzerland and N orway, not common.” (Musc. Gall. 163 
1887). 
This species has recently been reported by Dr. Venturi from 
Roll’s Collection in Yellowstone National Park, Wyoming. It 
differs from the rest of the group in having no preperistome. It 
has 16 cilia and a hairy calyptra, and the capsules are immersed, 
With 16 striz. 
*K Luorthotrichum. Capsules with only 8 striz and no preperi- 
stome, Usually tree species, rarely on rocks. 
II. Group oF O. DIAPHANUM. 
23. ORTHOTRICHUM DIAPHANUM (Gmel.) Schrad. 
Type European. Venturi says this species is quite common 
on trees and walls in Central Europe, more rare in the mountains — ae 
and the North of Europe. Braithwaite says: “ This little moss is ee 
fasily overlooked, as it only grows in small tufts and somewhat 
SPoradically ; jt may be recognized at once by its hyaline points 
to the leaves.” It also has 16 cilia and a smooth calyptra. oe 
It has been collected by Wright at San Marcos, Texas ; and : 
by Brandegee in Colorado (Bot. Gaz.g: 151, 1884). 2 
*4- ORTHOTRICHUM caNuM Mitt. Journ. Linn. Soc. 8: 26 (1865). 
L. and J. Manual, 170 (I RBA Re a es 
 _ Differs from the last species in the shorter hyaline ry 
__ Teaves, the hairy calyptra, and the cilia of | 
