153 
Mitten’s American specimens here for several years before he died. 
They were not returned to Mitten till quite recently (1891) by Dr. 
Watson at my request. Mitten’s original description does not 
throw any light on the points in question. 
Type locality, « on trees Vancouver Island, Lyall.” 
31, ORTHOTRICHUM CONSIMILE Mitt. Journ. Linn, Soc. 8: 24 (1865). 
Sull. Icon. Suppl. 59 z 43 (1874). | 
“Allied to O. pulchellum, differing especially in the shorter, 
broader capsule, teeth papillose, not vermicular, cilia 8, smooth, 
and in the uniformly papillose leaves.” Sullivant’s figures in the 
Supplement are presumably from the type. 
Type locality, Vancouver Island, Lyall. The specimens dis- 
tributed as No, 12 5 in Macoun’s Canadian mosses, are listed in 
the Catalogue Q. pulchellum. They are larger than the type, with 
longer pedicels and smooth calyptras. The teeth also are papillose 
on the outside, and striate inside, like those of O. pulchellum. 
The cilia are 16. 
_ We have seen the type and have the following notes: Plants 
small, 5-7 mm. high, light yellow; leaves short, 1-2 mm. long. 
Papillose, often more acuminate than figured by Sullivant, ending 
ia single cells, seta short 2 mm. capsule short I-1.25 mm. elongated 
and striate when dry, splitting between the ridges when old, striae 
strongly differentiated, of 4 rows of equal cells with thick walls, 
the spaces between them very thin; cells around the mouth small 
and round, annulus large, persistent; teeth pale, short incurved, 
When dry, the outer surface papillose, the inner striate, but as often 
transversely as perpendicularly, and less distinctly than in O. pul- 
— thellum ; Spores .O1O—.013 mm., rough, brown. 
We have specimens from Marshall A. Howe, No. 74 collected 
on trees at Olema, Marin Co., California, January 11th, 1894, 
eich agree pretty well with O. consimile, but are larger with 
longer capsules. Those collected by C. V. Piper on trees, Seattle, 
Ashington, 4.10, 1891, and distributed as No. 104b, by Prof, 
Eaton in his Musci Occidentali Americani are evidently O. pul- Z 
hellum, having longer seta, and 16 cilia. ° a 
V. Group oF O, PALLENS. eo ee 
In this group are included O. pallens, O. Canadense, O. alpestre, 
| and O. Watsonj. They are characterized by the immersed or _ 
tially exserted capsules, tapering into the seta with a neck sual 
