March 1907] Notes from Mycological Literature Tl 



Garrett, A. O. 



Some account of Puccinia scandica Johans., Puccinia caricis- 

 asteris Arth., Aecidium monoicum Peck, and Caeoma confluens 

 (Pers.) Schroeter is given by A. O. Garrett in the July No. of 

 the Journal of M3'Cology, 1906, under the title "Field Notes on 

 the Uredineae." The notes refer to collections made during the 

 three years past at the head of Big Cottonwood Canyon, about 

 30 miles from Salt Lake City, the altitude ranging from 8,500 

 to 9,500 feet. 



Arthur, Joseph Charles, and Kern, Frank Dunn. 



A paper, "North American Species of Peridermium," read 

 before the Botanical Section of the American Association for the 

 Advancement of Science, Nevv' Orleans, Jan. i, 1906, is published 

 in the August No. of the Bulletin of the Torrey Botanical Club. 

 The genus Peridermium as used by those authors embraces all 

 aecial forms possessing peridia, inhabiting the Pinaceae and Gne- 

 taceae. The paper describes 2^ species, ranging from Mexico to 

 Alaska, and from the Atlantic to the Pacific coasts, and also 3 

 species not yet found in America, but which doubtless occur as 

 the telial forms are abundant. The authors say further that some 

 important characters are used in the diagnoses not hitherto em- 

 ployed for American forms, such as those derived from the pres- 

 ence and form of pycnia, the structure, especially the cross-section 

 view of the peridium, and the thickness of the w^all of the spores. 

 Only 3 of the 27 forms have been definitely associated with the 

 telial forms. Cultures are absolutely demanded, say the authors, 

 before the Peridermium tangle can be straightened. Useful keys 

 are given both for the species and the hosts. Ten of the species 

 are new and several new names are given besides. 



Arthur, Joseph Charles. 



Twelve new species are described by the author in the Octo- 

 ber Bulletin of the Torrey Botanical Club, 1906, under the title 

 "New Species of Uredineae — V." They are from various parts 

 of western Canada, western and southern United States, Mexico 

 and the West Indies. Dr. Arthur says this assortment of species 

 is m.ore than usually interesting, as it embraces some belonging 

 to little-known genera, and some that clarify knowledge of com- 

 mon forms. 



Dietel, P. 



An excellent monograph of the genus Ravenelia has been 

 published in Beihefte zum Botanischen Centralblatt, 20 [Abt.] 

 11:343 413, PI. V-VI, 1906 — "]\Ionographie der Gattung Raven- 

 elia Berk.," P. Dietel. It was established in 1853 with two spe- 

 cies ; Cooke reviewed the genus in 1880 when 8 species were 

 known; now there are 81 species — 7 of them being first de- 



