163 
from lateral buds, as contrasted with the Striped Maple and Moun- 
tain Maple, which produce terminal racemes ; third, because he de- 
scribes the flowers as of an “ herbaceous ” color, and they certainly 
are yellowish-green ; and fourth, because it is the only one of the 
six species described by Marshall which can apply to the Sugar 
Maple, with which we think it entirely safe to assume that Mar- 
shall was well acquainted. Professor Sargent expresses his con- 
viction that Acer grandidentatum, Nutt. of the Rocky Mountain 
region, is not specifically distinct, and that the same is true of A. 
nigrum, Michx., a position in which we do not believe he will be 
generally supported. He follows recent European authors in re- 
uniting Wegundo with Acer, for which there appears to be abun- 
dant reason, and refers V. Californicum to A. Negundo as a va- 
riety, which does not seem to us to be as defensible. 
sae ee 3 
Peronosporacee—First Addition to the List of Kansas. W. T. 
Swingle. (Trans. Kans. Acad. Sci. xii. 129-134). 
Species are enumerated under the genera Cystopus, Plasmo- 
pora, Bremia and Peronospora. The host-plants are given under 
each species. Eleven different kinds of type are used in this ar- 
ticle, partly in order to emphasize new facts, and the result is a 
somewhat startling arrangement which, however, might not at- 
tract so much attention but for its novelty. We candidly confess 
that to us the appearance is rather confusing than otherwise. 
Pig 32 
Periodicity in Plants. B.B. Smyth. (Trans. Kans. Acad. Sci- 
xii. 75-81). 
The author begins by treating the subject of annual pe- 
riodicity in development, and gives examples of individual 
eccentricities in trees, as to date of opening the leaves, blos- 
soming, fruiting, etc. The daily motions of plants next receive 
the author’s attention, and from them is constructed “A Floral 
Clock for Kansas” which begins with “2 to 3 AM. ..... 
Convolvulus sepium; closes next evening” and terminates with 
CPE PM eis Cereus speciosissimus ; wilts at 2 A.M.” In addi- 
tion to the facts embodied in the “Clock” there are several phil- 
osophical speculations scattered through the article, such as: 
