1912] CURRENT LITERATURE 257 
800 profusely illustrated pages dealing with thallophytes. The second volume® 
appeared in 1900, and contained over goo pages dealing with the ‘‘Cormophyta 
oidogamia,”’ which include, of course, the “‘polyciliate”” gymnosperms. 
third huge volume has now soe containing over 1000 pages and gts 
senting only the first part on ‘‘Cormophyta Siphonogamia.” The m 
impressive heat is the shits: within four years, of nearly 2800 pages, 
which demanded the traversing of an extensive range of literature ici the 
eaten: ot facts and illustrations. 
he present volume deals with Coniferales, Gnetales, and a part of the 
rms. ‘There is no occasion for a detailed review, since the volume 
remarkably wide range of literature, has included a large number of illustra- 
tions from scattered contributions, and has organized his material in such a 
way as to make it easily accessible. The work as a whole will put the student 
in touch with the most important morphological contributions of recent years, 
and in this way will serve as a condensed library.—J. 
MINOR NOTICES 
Warming’s Handbuch.—A third German edition of Warminc’s Hand- 
buch, revised by MOstus, has just appeared.” This text is so familiar that 
only the new features of the present revision need be noted. The changes 
concern chiefly the thallophytes, which Méstus says “have diverged farthest 
from the original Danish conception,” and especially the algae, in the presenta- 
tion of which the new system of WILLE has been adopted. There are minor 
changes in other parts, such changes as may take advantage of a revision 
rather than demand it 
Perhaps the most interesting feature of the volume is the table representing 
the evolution of the plant kingdom, the blocks indicating the great groups, 
having the appropriate pigment colors. All the groups are definitely related, 
the plant kingdom arising from the flagellates, which give rise directly and 
independently to seven groups (‘‘Chytridiaceae, Myxomycetes, Schizomy- 
cetes, Volvocaceae, Conjugatae, Diatomaceae, Peridineae’’), the first four 
groups mentioned being responsible for all the rest. Anthocerotaceae are 
8 See ibid. 492225. 1910. 
L J: Vortrige iiber botanische Stammesgeschichte, gehalten an der 
Reichsuniversitat zu Leiden. Ein Lehrbuch der Pflanzensystematik. Dritter Band: 
Cormophyta Siphonogamia. Erster Teil. Imp. 8vo. pp. 1055. figs. 661. Jena: 
Seay Fischer. 1911. M 30. 
7 WaR , Evc., Handbuch der systematichen Botanik. Deutsche Ausgabe. 
Dritte Natiaae von Dr. Martin MOstus. 8vo. pp. xii+506. figs. 616. Berlin: 
Gebriider Borntraeger. 1911. 
