1887. | BOTANICAL GAZETTE. 279 
rank of genera, and Agaricus includes only those species formerly placed 
in the subgenus Psalliota. Whatever may be said of the characters on 
which these genera are founded, this arrangement is certainly more con- 
venient. 
he exannulate species of Amanita, corresponding to section B of 
Fries, constitute the genus Amanitopsis, and in like manner the annulate 
species of Paneeolus become a genus Anellaria. The same distinction, 
however, has not yet been accorded to the annulate and volvate species of 
Coprinus, though logically it would seem to be required. 
Of course, there are'a few omissions, but these can easily be excused 
in a work so vast. Students of this branch of mycology will find the 
volume a most useful, convenient, and even indispensable one, and will 
be very grateful to Prof. Saccardo for giving them such a vast amount 
of solid mycological literature in such a compact, systematic form, at the 
comparatively low price of 72 francs.—Cuas. H. PEcK 
A Course of Practical Instruction in Botany: Part II, Bruophyta- Thallophyta. 
By F. O. Bower, D. Sc., F. L. S., and Sydney H. Vines, D. Se., F. R.8., 
F. L. 8. Macmillan & Co.: London, 1887. 12°, pp. 144. 
The first part of this work, embracing the flowering plants and vas- 
cular cryptogams, was issued over two years ago, aud noticed in this 
journal for May, 1885. The present part, entirely from the pen of Dr. 
Bowers, as we learn from the preface, completes the work with the same 
admirable features displayed in the first part. It is unnecessary to repeat 
here the general comments and criticisms made upon Part I in the ear- 
lier review, as they hold equally good for all portions of the completed 
work, 
For mosses and liverworts under Bryophyta three types are used, 
Polytrichum, Sphagnum and Marchantia. The Thallophyta are divided 
into alge and fungi. Sixteen types are used for the alge, of which the 
first three are salt water forms representing the red and olive-green sea- 
weeds, and the others are fresh water forms, the number permitting quite 
a range of well selected types. The fungi are illustrated with ten types, 
beginning with the common mushroom, Agaricus campestris, and con- 
tinuing with the wheat rust, Puccinia graminis in its various stages, the 
cup fangus, Peziza, a lichen, Parmelia parietina, ergot, several molds, the 
white rust on Capsella, and Pythium DeBaryanum. 
The selection is to be commended, and the treatment also, with some 
slight reservations. This stricture refers chiefly to the occasional lack of 
sufficiently explicit directions, in order that the learner may not £0 
astray or become hopelessly lost in demonstrating difficult points of S'rhe 
ture, or in attempting to tind the more obscure parts referred to. Muc 
Is left to the ingenuity of the pupil, or the help to be obtained from a 
master, ‘ 
For advanced pupils, especially those under good supervision, - 
Work will prove most serviceable. The directions for studying the life- 
