LES MUCORINEES DE LA SUISSE—NORTH AMERICAN TREES 113 
Les Mucorinées de la Swisse. Par Aur. LenpNER. 180 pp., 3 pls., 
and 59 figs. Berne: K. J. Wyss. 1908. Price 7 fr. 
THE cryptogamic flora of Switzerland is receiving full justice 
at the hands of the eminent botanists to whom it has been 
entrusted, and Lendner’s work on the Mucorini is well worthy to 
rank with Fischer's Uredinee. It is an exhaustive treatise of this 
and how d these somewhat obscure moulds, to the 
best methods of growing them. S were secured 
by taking soil from woods and other localities, isolatin well 
known methods the fungus spores, and growing them on artificial 
culture media. Lendner was thus able to study the entire deve- 
lopment of a very large series of forms. A number of new species 
have been discovered by him during his investigations, and are 
described here for the first time. To this thorough method is due 
the large number of new figures that he has been able to make 
from the living plants, which greatly enhance the interest of the 
book. 
He divides the Mucorint into Sporangiophoree and Conidio- 
phoree. The former are by far the larger group, including four 
families—Mucoracee, Thamnidiacee, Pilobolacea, and Mortierel- 
lacee. The arrangement of ra and species adopted by him 
differences between them and Absidia important enough to main- 
re not without ample 
justification, as the founding of genera and species on minor 
of the subject and a good index are added. Fem ry 
North American Trees : being Descriptions and Illustrations of the 
Trees growing independently of cultivation in North America, 
north of Mexico and the West Indies. By NarHanreL Lorp 
Brirton, Ph.D., Se.D., Director-in-Chief of the New York 
Botanical Garden, with the assistance of Joun ADoLPH 
HAFER, Pharm.D., Custodian of the Museums. London: 
Constable. 1908. 4to, cloth. pp. x, 894. Price £1 10s. 
JOURNAL oF Borany.—Vot. 47. [Marcn, 1909.] K 
