pointed, and by its shorter, often unequal segments. In some of its forms it 

 approaches L. polycarpa, in others L. obscura, without however fitting either 

 as a variety. In general terms it may be said that all those doubtful forms 

 that plainly do not belong to either of these species should be referred to L. 

 £-ractlesce?ts, which moreover has priority over the last. 

 (8) Leskea tectorum (A. Braun) Best. 



Widely distributed and quite variable, L. tectorum is usually easily 

 recognized when once understood. Its leaf- cells, broad, plump, rounded, 

 glassy, furnish its most distinctive character. Its leaves are quite like 

 those of Amblystegiiim adnatiim but some what smaller.. This differs, 

 however, in having its leaf-cells longer and narrower, especially in the upper 

 part of the leaves, so that no difficulty need be experienced in discrimina- 

 ting between the two species. The closely allied European Leskea catenu- 

 lata (Schwagr.) Brid., undoubted specimens of which have not as yet been 

 reported from North America, may be known by its narrower, longer and 

 thicker costa, usually reaching the middle and not forking, and by its thick- 

 walled leaf-cells. 



The type of L. Wollei Aust. has been compared with European speci- 

 mens of L. tectorion, with the result of finding them nearly or quite identical. 

 While the median leaf-cells are slightly longer, sometimes more rhom- 

 boidal than in the ordinary forms of this species, the same variations occur 

 in foreign specimens. The cotype of Pseiidoleskea inalacoclada C. M. & 

 K., through the kindness of Prof. Macoun, has likewise been seen and care- 

 fully examined. Although it is slightly stouter and the basal margins of 

 the leaves are more commonly recurved, it differs in none of the essentials 

 from the specific type of Z. tectorum. Rosemont, N. J. 



BIBLIOGRAPHY— T. P. JAMES. 



In response to a request to supplement the article on Thomas P. James 

 by a list of his writings, Mrs. Gozzaldi writes the following under date Oct. 

 8. 1903. " My father was so much taken up with the -study of Bryology and 

 his work in the Horticultural and Pomological Societies that he wrote very 

 little outside these lines for publication. I will add what I can think of to 

 these." Then follows: Life of William Darlington, M. D. ; ''Anophytes" 

 in Darlington's Flora Cestrica: Flora of Delaware Co., Pa, in Dr. George 

 Smith's History of Delaware Co. ; The Journal of Pursh the Botanist, Edited 

 and Published by T, P. J.: " Anophytes " in Smithsonian Report of Flora of 

 Alaska, by J. T. Rothrock; "Mosses" in Vol. V, Clarence King Surveys, 

 and the Manual of the Mosses of North America in connection with Les- 

 quereux. A. M. S. 



