1898] CURRENT LITERATURE 377 
(mgress” regarding the desirability of establishing experiment stations in that 
region. In many places the soil is remarkably rich, and native grasses and 
sociated plants attain uncommon stature. A list is given of over one hun- 
red species of economic plants collected by Mr. Evans.—J. C. A. 
ARECENT PAPER by W. West and G. S. West* presents many interest- 
ing facts concerning the habits, methods of reproduction and structure of the 
 Conjugatae, together with an interesting diagram of possible phylogeny. 
One is not apt to realize the extent of parthenogenesis and other means of 
toi-sexual propagation that are present in this group of plants. Filaments 
may fragment, and resting cells or cysts may carry the species through 
infayorable conditions, but the most interesting structures are the partheno- 
ti : ae 
en another distinct system of branches. The Desmidiacee are regarded 
hoot and somewhat degenerate group from this second main branch, 
\ “te not connected directly with the unknown ancestral types.— BRADLEY 
SORE Davis, : 
ARTHUR 
fda (Grey, 
% that 
H. Cuurcn™ has investigated the polymorphy of Cutleria multt- 
: ) This plant unfortunately is not found on our temperate coast, 
dotanis  eresting peculiarities cannot be very well known to peor 
‘Onia “a here are two plants, described as the genera Cutleria Re mit 
and tig thave long been suspected to be phases of a complicated life cycte, 
Paper largely deals with this problem. 
ee A. C.—A report to Congress on agriculture in ee Oke 
Esper Walter H. Evans, Benton Killin, and Sheldon Jackson. Bullet 
nz i tations, no, 48, pp. 36, A/. 27. 1898. 
ay nals of Botany 12: 29-58. pls. g and 5. 1898. 
nals 
of Botany 12: 75-109. pls, 7-9. 1898. 
