-38- 



there, though I found only weathered plants. I regret that the distance, 

 nearly the width of our State, makes it difficult to visit that profitable col- 

 lecting ground often. 



Lastly, the Briichia I found only in June, 1902, close to the railway sta- 

 tion at Dodge, Wis., some miles north oE Winona, in the Trempealeau River 

 valley. . The plants occurred in greatest abundance among the short junciis 

 and similar grass-like plants in a patch of fallow ground close by a tama- 

 rack swamp. In this case also all were already badly weathered. It is my 

 purpose to revisit that station five or six weeks earlier this spring to secure 

 plants in better condition. 



In closing this note it may be worth mentioning incidentally that the 

 geographical range of several of the species noted has been considerably 

 extended. John M. Holzinger. 



NOTES. 



PoGONATUM T^REVicAULE (Brid.) Bcauv. 



In a recent letter M, Jules Cardot calls attention to the fact that Bridel 

 in 1798 first gave the name Polytric/iinn brevicaitlc (Muscol. Recent II. pt. 

 I, p. 87) to the moss which has since been called Pogoiiaticm brevicaiile and 

 that the specific name tejiite was given to the same plant in the same year by 

 Menzies, hence it is next to impossible to say which has the priority. 



This being the case I agree with M. Cardot that P. brcvicaiilc (Brid.) 

 Bcauv . is the proper name for this plant, because this name was in use for 

 eighty- nine years before Mrs. Britton made the new combination. 



A. J. Grout. 



PSILOPILUM TSCHUCTSCIIICUM C. MiiU. 



In recently looking over a collection of mosses received at the Botanical 

 garden from Prof. Macoun, which he made in the upper Yukon region last 

 summer, I found good fruiting specimens of what I take to be the above 

 species. They are undoubtedly the same as the sterile plants I collected on 

 the Klondike river in 1899 and referred to P. arcticiim. They are distin- 

 guished from this latter by the much longer, less curved capsules, less imbri- 

 cated leaves, incurved when dry and by the margins of the leaf and also of 

 the lamellae, which are entire or only slightly undulate above, while P . 

 arciicum has both leaf border above and lamellae on margin irregularly ser- 

 rate with crowded, crenulate teeth. In the first specimens I examined this 

 last difference was scarcely noticeable owing to the much abraided margins. 

 The distinction of basal leaf cells between the two species is not apparent, 

 being quite variable in different leaves from the same plant. (See J. M. 

 Holzinger's article on these species in Bryologist V:8o, 1902). Also the 

 difference in the exothecal cells does not seem to have been clearly pointed 

 out. In arcticuni the cells on the incurved side of the capsule are short, 

 often slightly transversely elongated, while on the opposite side they are quite 

 rectangular and mostly 2 to 3 times longer than wide. In TschiLct schicuvi 

 the cells are more uniform around the capsule, mostly from a little longer 

 than broad to about twice longer. The spores of the Macoun specimens 

 measure from .022 to .025 mm. r_ s. Williams, N. Y. Botanical Garden. 



