98 The Botanical Gazette. [March, 
In CoNNECTION with the paper of the series on flowers and insects 
published in this number from the pen of Mr. Charles Robertson, 
it may be well to call the attention of all our readers who are m- 
terested in these topics, to the paper of the same series printed in the 
Transactions of the St. Louis Academy of Science, vol. v, p. 569. The 
orders therein treated are the Asclepiadaceze to Scrophulariacee. 
In 4 RECENT bulletin, notable as being no. 1 of the division of vege: 
table pathology, Dr. Erwin F. Smith adduces additional evidence of 
the communicability of peach yellows and peach rosette. The latter 
disease has been considered a form of the yellows, but Dr. Smith has 
recently described it as a different disease. It is spreading in the 
archean region of Georgia, and is more virulent than the yellows. 
Extermination of diseased trees is the only measure that can be sug: 
gested at present. 
Mr. Joun Rosinson published in the Salem Gazette, during the 
summer of 1891, a series of articles upon the trees of Salem and 
vicinity. These papers have since been revised, and now appeat™ 
pamphlet form issued by the Essex Institute. They were written for 
popular entertainment and instruction, but in Mr. Robinson’s hands 
they have been made full of interest to botanists as well. 
39 - Grorce Vasey’s “Grasses of the Southwest,” Part I, com 
pleting the first volume, has been distributed, and fully sustains the 
excellent character of Part I. Fifty species are illustrated by mo 
Wheelock, 
“ Memoirs of the Torrey Botanical Club.” Mr. Wheelock has studiét 
the specimens found in the largest American herbaria and Dr. Brittom 
has examined most of the types preserved in Europe. The species 
number 38, and of these very full descriptions, synonymy, and ait 
are given. A new species from Texas (2. Tweedyi Britton,) is described 
and Some new varieties proposed. P. fastigiata Nutt. (1818) 8 
Mariana Mill. (1768) ; and P. viridescens L. replaces P. sanguine? 
of same date. The error of date under P. Rugelit had better be eis 
rected. It should read Shuttleworth, Chapm. Botanical GA? * 
lil. 4 (Jan. 1878). : : 
PROFESSOR GREENE’s Flora Franciscana, Part I1, continues that 
portant work through 24 additional orders. The succession of families 
