165 
Swingle. (Trans. Kans. Acad. Sci. xii. 158, 159, illustrated). 
Descriptions of Usttlago Sorghi and U. Reiliana, the latter 
figured. 
Vorliufige Mittheilungen tiber die von mir im Jahre 1888 in 
Nord Amerika gesammelten neuen Arten und Varietiten der 
Laubmoose, von Dr. Julius Roll. (Sep. Abd. Bot. Cent. no. 51, 
1890, pp. 13). 
The plants collected by Dr. Julius R6Il have been named by 
various specialists. This installment includes twenty-three new 
species and twenty new varieties and sub-species of mosses 
named by Renauld and Cardot, Venturi, Miiller, Brotherus and C. 
R. Barnes, the genera being Dicranum, Barbula, Timmiella, 
Grimmia, Guembelia, Scouleria, Ulota, Orthotrichum, Pohlia, 
Bryum, Mnium, Myrinia, Pseudoleskea, Fontinalis, Neckera, 
Camptothecium, Brachythecium, Raphidostegium, Amblystegium, 
and Hypnum. Suspecting Muium Roéllii, Vent. to be the same as 
Bryum lucidum (BULLETIN, Dec. 1889), I sent specimens of 
the latter to Dr. Brotherus and he confirms my _ suspicion. 
Orthotrichum stenocarpum, Vent. is also antedated by O. loncho- 
thectum, CM. and K., Macoun’s Canadian Mosses, No. 497, 
which I believe to be the same as Austin’s O. Macount, BULLETIN. 
vi. 343, 1879. It is also worthy of note that O. strictum, Vent. 
subspec. nov. of O. Lye/lit, is evidently only O. Pacificum, Hpe. 
which is a rigid, dark form of that species. BE Ge 
Winter Aspect of Trees. J. Walton. (Vick’s Mag. xiv. 120-124; 
illustrated). 
Fagus ferruginea, Acer saccharum, Populus Canadensis and 
Robinia pseudacacia are the subjects specifically treated. The 
representations of the trees are worse than poor, they are mis- 
leading and itis a pity that an article which could be made of 
interest and value should be spoiled by such illustrations. The 
previous contribution was open to the same criticism and we 
would suggest that hereafter the camera is the only safe instru- 
ment to use in case illustrations are desired. The author con- 
cludes with a description of how to calculate the height of trees. 
Yuccas of California—The Arborescent. S. B. Parish. (Gard. 
gd. For. iv. 135, 1460.0... _ 
On account of Yucca brevifolia, Y. baccata and Y. briarfolia. 
