159 
lose leaves, with the vein ending below the apex; it differs, in 
having revolute margins and no propagule. In fact it belongs to 
the section with immersed stomata; has a shorter capsule and 
neck, is pyriform when fresh, urceolate when empty, has a simple 
peristome of 16 striolate teeth, reflexed in pairs when dry. It is 
not referable to any of the groups on account of having no cilia, 
though perhaps it is as closely allied to O. tenellum as any by its 
imbricate blunt leaves. Dr. Venturi is mistaken (1. c.) in stating 
that Lesquereux and James refer “ 0. Jamesonianum” to O. rivu-- 
fare. We presume he has reference to this species though the 
spelling is different, 
Type locality: On limestone rocks, East Humboldt Mountains, 
Nevada, Watson, altitude 7,000 feet; Fort St. James, British 
Columbia, Macoun. Also on rocks at Yale and Spence's Bridge, 
B. C., according to Macoun’s Catalogue; but No. 129 of Canadian 
mosses, distributed as this species, is in our specimens all 0. 
obtusifolium, 
* 
SUPPLEMENTARY NOTES ON THE NORTH AMERICAN 
SPECIES OF WEISSIA (ULOTA). 
WEISSIA MEGALOSPORA (Vent.) E. G. Britton. 
In the BuLLETIN for F ebruary (21: 74-75, 1894), in comparing 
Kindberg’s Ulota subulifolia and subulata with U. megalospora 
Vent., we stated that “we should not be surprised to find that 
these three species were one.” We have since learned from Prof. 
Macoun, that the type localities of Kindberg’s two species are the ae 
Same, in fact he picked them both out of the same specimen, and 
Prof. Macoun thinks they are the same species. He has not been 
able to Separate them in his herbarium. 
Also in a recent letter from Dr. Venturi (March 6th, 1894) he 
Says: ‘The two specimens which you send me (71, collected by 
W.N. Suksdorf, at Nooksack river, Washington, and No. 137, U. 
Subulifolia Kindb. of Macoun’s mosses, from New Westminster 
Junction, B. C.) are without doubt the same as my specimens of . 
U. meg alospora. The two specimens which you send do not attain | 
quite the dimensions of the spores that I have seen in the speci- 
mens sent me by Dr. Dieck, but nevertheless I have found, partic- 
eee a 
