538 BOTANICAL GAZETTE [JUNE 
Africanae,”’ in which a new genus (Pillansia) of Iridaceae is described by L 
Botus; and “Key to the flora of the Cape Peninsula,” by F. and L. Botvs. 
Annals of the Missouri Botanical Garden.—The present year has been 
prolific in the appearance of new botanical journals. To the American Journal 
of Botany and the Annals of the Bolus Herbarium is now added the Amnals of 
the Missouri Botanical Garden. ‘The new journal is a quarterly, the first number 
being dated March 1914. The journal will provide for the printing of scientific 
papers which formerly constituted a large part of the annual report of the 
Missouri Botanical Garden. It will contain only scientific contributions from 
members of the staff of the Garden, from the faculty and graduate students of | 
the Washington University, and from visiting botanists doing all or part of their 
work at the Garden. The first number contains the following papers: ‘‘The 
effect of surface films and dusts on the rate of transpiration,” by B. M. DuGcaR 
and J. S. Cootry; “Some pure culture methods in the algae,” by Jacos R. 
ScuraMM; ‘The identification of the most characteristic salivary organism 
and its relation to the pollution of air,” by ee C. Norte; “The Polypo- 
raceae of Ohio,” by L. O. OvERHOLTS.—J. M 
The fresh-water flora of Germany, Austria, and Switzerland.—Part 1 of 
this series of brochures has appeared.7_ The five previous parts have been 
noticed in this journal. The present part completes the flagellates, the other 
groups of which were presented by PAScHER and LEMMERMANN in part 2. 
The compact size, excellent illustrations, and well considered analytic keys 
continue to be features of this excellent work.—J. M. C. 
NOTES FOR SPEUDENTS 
Color inheritance.—Continuing his excellent studies on Melandrium 
(Lychnis), SHULL? has made a great advance in our knowledge of the inherit- 
ance of leaf pigments of the chlorophyll and the carotin-xanthophyll groups. 
With his characteristic care, the author came to his conclusions only after a 
very large number of hybrids properly synthesized for the tests desired had 
been made. The color wheel was used as an aid to the classification of the 
individuals wherever it was deemed necessary. Bawur’s discovery of a general 
factor for chlorophyll formation (Z), without which plants are free from 
chlorophyll, is confirmed; but his idea that the gene Z produces yellow pigment 
is not supported. Assuming the presence of unanalyzed genes X.X, then typical 
7 PascuHeR, A., Die Siisswasser-Flora, Deutschlands, Osterreichs, und der Schweiz. 
Part 1. Faget dene PascHER and E, LEMMERMANN. pp. 138. figs. 252. Jena: 
Gustav Fischer 
8 Bor. ae “ 233- 1913; 572335. 1914. 
9SHutt, G. H., Uber die Vererbung der Blattfarbe bei Melandrium. Ber. 
Deutsch. Bot. pi 31:40-80. 1914. 
