ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
377 
This grouping of the species of Equisetum according to the structure 
of the stem in no way corresponds to that of Milde founded on the 
nature of the stomates. 
Muscinese. 
Sporophyte of Splachnum.* — The late Mr. J. R. Yaizey describes 
the structure of the remarkable umbrella-shaped apophyse of Splachnum, 
luteum and other species. The parenchymatous tissue of the apophyse 
contains large numbers of chlorophyll-bodies, and the author lias no 
doubt that this organ performs the function of a leaf ; large quantities 
of starch being formed in its cells, which subsequently disappears. Its 
upper surface has a number of stomates the structure of which resembles 
in several respects those of flowering plants rather than those of other 
mosses. The structure of the sporange is typical ; but the radial walls 
of the cells of the peristome have remarkable horizontal thickenings, 
recalling the thickenings in the elaters and cells of the walls of the 
sporange of many Hepaticae. 
Rabenhorst’s Cryptogamic Flora of Germany (Mosses). — The 
last three parts of this publication, by Herr K. G. Limpricht, treat of the 
following orders : — Orthotrichaceee, including Amphidium (2 sp.), 
Zygodon (9 sp.), Ulota (11 sp.), and Ortliotrichum (38 sp.) ; Encalyp- 
taceae, including Encalypta (12 sp.), and Merceya (1 sp.) ; Georgiaceae, 
including Georgia (1 sp.) and Tetrodontium (1 sp.) ; Schistostegaceae 
( 1 sp.) ; Splachnaceae, including Dissodon (3 sp.), Tayloria (5 sp.), 
Tetraplodon (4 sp.), and Splachnum (3 sp.); Disceliaceae (1 sp.) ; and 
the commencement of Funariacem, including Pyramidula (1 sp.), Phys- 
comitrium (4 sp.\ and Entosthodon (4 sp.). The characters of the genera 
and of many of the species are illustrated by the usual beautiful 
woodcuts. 
Algae. 
British Marine Algse.f — MM. E. M. Holmes and E. A. L. Batters 
print a complete list of all the British species of marine algae 
that have at present been identified. Their distribution is indicated by 
a record of their occurrence in the fourteen sections into which the 
British coasts are divided, viz. nine for Great Britain and five for 
Ireland. 
Lemaneaceae4 — Herr F. Bornemann gives a monograph of this order 
of Algae, and describes two new species, Sacheria rubra and S. csespitosa. 
He regards the Chantransia-form as a thallus, and the Lemanea-form as 
the fructification. This has usually a lateral, rarely a terminal, position. 
The fructification may display either true or false branching. The 
author describes the procarp as four-celled, two or three of the inner 
carpogonous cells developing into longer or shorter usually branched 
filaments, from the apices of which the spores are abstricted. 
* Ann. of Bot., v. (1890) pp. 1-10 (2 pis.). Cf. this Journal, 1888, p. 460. 
f Ann. of Bot., v. (1890) pp. 63-107. 
X * Beitr. z. Kenntniss d. Lemaneaceen,’ Berlin, 1887, 49 pp. and 3 pis. See Just’s 
Bot. Jahresber., xvi. (1890) p. 161. Cf. this Journal, 1890, p. 641. 
