210 The Botanical Gazette. (May, 
BourQuE.or has found' that Aspergillus niger, when cultivated ina 
fluid medium to maturity, excreted a considerable number and variety 
of enzymes. Invertase, maltase, trehalase and inulase act on sugars; 
diastase on starch; emulsin on glucosides; and trypsin and pepsin on 
proteids 
PRoressor L. H. PaMMEL, of Ames, Iowa, has published some 
“Notes on the flora of Texas,” being an account of the flowering 
plants noted in central Texas during a visit in the summer of 1 
and 1889 while engaged in studying the “root-rot” of cotton. The 
list contains 291 numbers. 
THE EXPERIMENT STATIONS of Europe are being described in 4 
series of illustrated articles in the Axperiment Station Record. 
station at Bernberg, famous for the work of Dr. Hellriegel upon the 
assimilation of free nitrogen by the Leguminosz, and kindred sub- 
jects, is the last one treated. 
WE ark informed by Dr. W. Thornton Parker, in Science (Feb. 23), 
that “the loco-plant is regarded by Professor Gray. of Harvard Unt 
versity, as the Astragalus legum, a peculiar species of the Vetch tribe, 
abundant in the region of the ‘Texan Panhandle.’” We wonder where 
Dr. Gray made such a statement! 
AMONG Messrs. Swan Sonnenschein & Co.’s announcements for 
spring of 1894, we note the Handbook of Systematic Botany, by ms: 
. Warming, Professor of Botany in the University of Stockh re 
be translated and edited by M. C. Potter; Flowering Plants, by Jam 
Britten; and Grasses, by W. Hutchinson, the two latter in the Young 
Collector Series. 
THE QuaRTERLY BuLLEtIN of the University of Minnesota Pr 
reached the first number of its second volume. The last issue note 
tains a half dozen botanical papers. All but one, a preliminary atic 
by Prof. Conway MacMillan on the casting off of parts of the pare 
hairs of Azolla, are résumés of articles published in different 
and already noticed in these pages. Pro- 
A NEw “sand plum” from Kansas is described and figures y Wat- 
fessor Sargent in Garden and Forest (April 4). _ It is para late Dr. 
soni, from Dr. Louis Watson, of Ellis, Kansas, brother of the 
The plant has > 
n mistake? 
ant on the 
3 ees ies of 
IN THE Am. Micr. Jour. J. Christian Bay is publishing 3 Gescit 
papers on the study of yeasts. The February number infection — 
deutst 
paper on the aeration of tissues and organs in 
phanerogams, by W. W. Rowlee. ‘ch presente 
FoR MAKING microscopical preparations of alge which P as 3 
1Bull. Soc. bot. de France 40: 230. 1893. Cf. Bot. Cent. 67: 200. 
