No.412.] REVIEWS OF RECENT LITERATURE. 325 
important work has now reached Lieferung 201, dealing with the 
Hyphomycetes. 
“A Taxonomic Study of North-American Ranunculacez " is the 
title under which Dr. K. C. Davis publishes his thesis, submitted to 
the Faculty of Cornell University last June. It consists of a series 
of articles separately printed from various journals, some of which 
have already been noticed in the Naturalist. 
A posthumous revision of the genus Matthiola, by Pascal Conti, 
accompanied by a portrait of the author, appears in No. 18 of the 
Mémoires de P Herbier Boissier. 
The Oxalidacee of Uruguay receive apparently careful treatment 
by Arechavaleta in fascicle 14 of the third volume of Anales del 
Museo Nacional de Montevideo. Thirty-five species are described. 
A study of the leaf anatomy of the Melastomacez constituting 
the tribe Miconiez, with reference to the classification of the plants, 
forms No. 19 of Mémoires de l’ Herbier Boissier. 
Bulletin 175 of the North Carolina Experiment Station contains 
descriptions of twenty-one species of Crataegus and eight species of 
Panicum, believed to be new. 
Rubus ideus anomalus is reported from Vermont by Fernald in 
Rhodora for October. 
Celtis pumila, the separability of which from the arboreous species 
of the Mississippi valley has long been in dispute, is critically consid- 
ered, in connection with its allies, by E. J. Hill, in the Bulletin of 
the Torrey Club for September. 
Tig Revue Horticole for October contains an interesting article by 
IS on the Mexican forms of Persea gratissima, with a colored 
plate of one of the finer varieties. 
n The Physiological differences between the sessile- and pedunculate- 
‘Tuited English oaks are considered at some length by W. R. Fisher 
In the Gardener s Chronicle of September 22. 
5 No. 14 of Dr. Holm's « Studies in the Cyperacez," in Zhe Amer- 
es Journal of Science for October, refers chiefly to a collection of 
Carices made in Alaska by Evans in 1897-98. 
Part XIV 
of Kraenzlin's *Orchidacearum Genera et Species," 
recently issu 
ed, reaches page 896. 
