GURRENT LITERATURE. 
MINOR NOTICES. 
Mr. A. P. MorGAN has just published his fourth paper upon the Myxo- 
mycetes of the Miami valley (Ohio),‘ containing the Physaracez. Out of 
Physarum of Persoon’s Synopsis (1801) seven genera have come, which with 
Fuligo and Craterium makes this family the largest one of the Myxomycetes. 
Mr. Morgan has followed Lister in discarding Tilmadoche of Fries, but he has 
separated from Physarum a new genus, Cy//dium, characterized by the pres- 
ence of a columella, and composed for the most part of very closely related 
species. Both Leocarpus and Craterium have been enlarged to receive two 
under Fudigo varians has decided the author to return to the species of Per- 
soon. A fifth paper is intended to close the series.— J. M. C. 
Mr. P. A. RYDBERG has published the results of his study of the North 
American species of the perplexing genus Physalis.2 No genus was im 
greater need of careful revision, as the species are difficult to separate, and 
apparently most of those recognized were composites. To their disentangle- 
ment Mr. Rydberg has brought great patience, a good insight, and am 
abundance of material. His examination of herbarium material has bees 
unusually complete, and much field work has served to make this examination 
P. Lagasce Roem. & Sch. P. lanceifolia Nees is separate pe 
angulataL. P. ixocarpa Brot. replaces P. eguata Jacq. P. lanceolata pe 
fata Gray becomes P. longifolia Nutt., and the allied P. Texana is dese 
1896. : Jated 
*? RYDBERG, PER AXEL.—The North American species of Physalis and re 
genera. Memoirs of the Torr. Bot. Club 43297-374. 1896. 
‘as [NOVEMBER 
