107 - 
all the known genera of hepatics. It follows the same plan as his 
Analytical Key to the forty-three Subgenera of the old Genus Lejeunea, 
published in 1908, in the Revue Bryologique. 
The fact that exotic collections contain so many sterile specimens 
with small hope of their ever again being found led the author to use 
vegetative characteristics so far as possible in the key, which by synop- 
tical figures leads to the determination of the genera. The increasingly 
large number of known species obliges the specialist to give a more 
and more careful description of the differences in structure of the 
plants, and as few students have access to the literature concerning 
collections from various regions of the world or to the expensive 
works treating the subject in full, there seemed to be a distinct de- 
mand for such a work. 
Part First of the Atlas separates the hepatics of the world into 
tribes, shown in three tables. First Table shows the tribes having 
incubus leaves. Second Table, those having non-incubus or succubus 
leaves. Third Table, those having thallose forms. The second part 
of the Atlas leads to the determination of the genera of each tribe 
in sixteen tables accompanied by one hundred and forty-two figures. 
Each table, in a foot-note, gives generic and specific names of those 
represented. Each genus is shown by a figure of the most typical 
species, excepting in a few cases where there are two species given as 
more comprehensive. There is also an alphabetical index to genera 
with references to figures and tables. 
In a note are added five new monotypic genera. A second note 
added by the editors, after the author’s death, gives a few correc- 
tions and reductions. 
This concise little book of forty-six pages with clearly drawn 
illustrations, the figures showing mostly fruiting plants, can be com- 
mended as a handy work of reference. It stands quite alone, except- 
ing the large work, illustrated, by Professor Schiffner in the Natlirlichen 
Pflanzenfamilien of Engler and Prantl, or, Species Hepaticarum which 
is being published by Franz Stephani ; this, however, is not illustrated. 
There are faults, arbitrary ones, such as confining all the leafy forms 
into two groups with incubus and succubus leaves, etc. The nomen- 
clature follows the European plan, but will not prove much of a stumb- 
ling block, nor, with the figures, should the foreign text. 
The figures are drawn from nature by the author or reproduced 
from illustrations published by R. Spruce, V. Schiffner and F. 
Stephani. 
It is published by the Librairie Venot, place d’Armes, Dijon 
(Cote-d’Or) France, no price being given. The companion work 
has for title : Hepatiques, Cle Analytique des Quarante et quelques 
Sous-Genres de I'ancien Lejeunea, consisting of fourteen pages of 
text and plates, and can be bought of the same publisher for four 
francs. Caroline Coventry Haynes. 
