14 
The botanical parts of this interesting paper are: (1) A brief 
description of the forests of the Rocky Mountains. (2) Those of 
the Cascade Mountains, and the flora of the Lower Columbia. 
Polyporus.—Notes on. J. B. Ellis. (Journal Mycol., ii. 
pp. 5, 6.) 
Rosa pisocarpa, Gray. (Curtis’ Bot. Mag. xlii., Tab. 6857.) 
The Kew plants were raised from seed received from Prof. 
Sargent; they flowered in July and fruited in September. 
Sassafras.—Large trees of. Dr. Gordon W. Russell Cee 
Month., xxviii, (1886) p. 22.) 
West of Baédaport: Conn., G. L. Porter Bessie a tree having 
a circumference of 78 inches, 4 feet above the ground; and re- 
ports another having a circumference of 110 inches at 54 feet 
above the ground. 
Tendril Movements in Cucurbita Maxima and C. Pepo. D. P. 
Penhallow. (Am. Journ. Sci., xxxi., pp. 46-57, Pl. V.; to be 
continued.) 
Recent discoveries on the continuity of protoplasm have 
thrown more light on some studies made by the author in 1874, 
of the movements of the tendrils and terminal bud of the squash. 
After giving careful explanation of the methods pursued in grow- 
ing and recording the movements, as shown by diagrams, he 
proceeds to explain the histology of the tendril. Three impor- 
tant areas were noted, running the length of the tendril, each in 
a depression which is noticeably greener than the rest of the ten- 
dril. To these areas the name Vibrogen tissue has been given, 
as itis to these the origin of movements are due. The subse- 
quent movements are fully explained and torsion has been ob- 
served, contrary to statements of Sachs. The continuity of pro- 
toplasm was demonstrated most clearly in the collenchyma, of 
which a most satisfactory drawing will be found. The move- 
ments which bring about the formation of the double spiral are 
described at length and full measurements given. 
Teucrium Canadense.—Fertilization of. Aug. F. Foerste, 
(Am. Nat., XX., p. 66.) 
Transpiration—Some Notes on Plant. F. P. Venable. (Jour- 
nal Elisha Mitchell Scientific Soc., 1884-’85, pp. 63-66.) 
