ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
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rule, although in rare cases it may be elevated on a very short stalk. 
3. The plant is monoecious, with the sex organs in distinct groups, 
although bisexual receptacles may occur. 4. The antheridia show a 
tendency towards centrifugal development. Variations from the usual 
Marchantiaceous type of development occur, such as the occasional 
appearance of an apical cell with two cutting faces, and the occasional 
formation of only two primary spermatogenous cells in a segment. 
5. The male receptacle is a plastic structure, probably representing an 
elementary stage of a branch system, and showing transitions from the 
“ dorsal outgrowth ” type to the “composite branch-system ” type. 
A. Gepp. 
Study of Cephaloziella.— Ch. Douin {Revue Bryologique , 1914, 
83-4). The species of Cephaloziella prefer light and air, and mostly 
are killed by excess of moisture. They are in best condition in October 
and November, occurring especially in open situations. Often they are 
found in larger patches of little plants ; the explanation of this is to be 
sought in the multiplication which goes on during the summer. In 
the spring the spores and propagula germinate ; a drought follows, and 
at once the apical cells are transformed into groups of propagula. These 
latter in their turn germinate during the next showery period. And so, 
on and off, the process continues during the summer, a single chance 
spore or propagule thus giving rise to thousands of plants which rapidly 
develop on the permanently damp soil of autumn and attain maturity. 
A. G. 
Cheilolejeunea hobartiensis. — Wi. Hy, Pearson {Revue Bryologique, 
1922, 11-13, figs.). A description and figures of this new hepatic from 
Tasmania. Stephani was in error in referring it to Strepsilejeunea 
auslrina Spruce, which is a synonym of Lejeunea mimosa Tayl. A. G. 
Two New Hepatics. — T. Husnot {Revue Bryologique , 1920, 26-7, 
figs.). Descriptions and figures of two new French hepatics, Cephalo- 
ziella subglobosa from Turques in Calvados, and Lopliozia Gorbieri from 
Magny-le-Desert in Orne. The latter plant has the habit of L. Lim- 
prichiii. A. G. 
Abruzzi Hepatic*. — Alexander W. Evans {Revue Bryologique , 
1920, 57-8). A list of 14 hepatics from the mountains of the Abruzzi, 
the hepaticology of which is unknown. They were collected at Scanno 
in the heart of the Abruzzi, at an altitude of about 3500 ft., during a 
brief visit. A. G. 
Hepatic* of Bavaria. — Ignaz Familler {Denkschriften Bayer. 
Bot. Gesell. Regensburg , 1920, 14, 1-167, 27 pis., and figs.). The first 
part of this treatise on the Hepatic* of Bavaria appeared in 1917 and 
treated of the distribution of the hepatics in Bavaria. The second part 
is concerned with descriptions of the genera, species and forms. Keys 
of the genera are supplied, and under each genus is a key to the species. 
Some of the text-figures contain a surprising amount of minute but clear 
information in the form of compared outlines of numerous allied 
species. The plates illustrate the species by nature prints (nat. size), 
supplemented by photomicrographs magnified either 2-3 diam. or 25-50 
