a COSTE REIN IET E A PIAR. AELA E RG A ee em 
1878] Botany. 467 
simulated tendrils in form, would, if straightened out, measure 6 + 
to 8 inches inches in length. The buds upon them appeared to 
marked, and some were not very different in habit from ordinary 
twiners, as, for examples, Menispermum canadense. Aristolochia, 
it has sčzce been discovered, exhibits in a slight degree a similar 
tendency.— Fno. A. Ryder. 
BoranicaL News.—Francis Wolle concludes (Bulletin of the 
Torrey Botanical Club, April) that MVostoc, which has generally 
been considered a perfect plant, is not so, but the “ matrix ” of 
Scytonema, from which many forms of the latter genus are evolved. 
he paper is illustrated by a full page cut. In the Botanical Ga- 
zette Charles Mohr notices the foreign plants introduced into the 
Gulf States. Mr. R. Burgess records a case of natural radical 
grafting, “ potting two plants of the deer’s tongue and rat-tail 
Cactus, resulting in a profuse crop of the latter issuing from the 
extremity of the leaves of the former.” 
Trimen’s Journal of Botany contains a notice of Rodier’s 
second note on the spontaneous and regular movements of Cera- 
tophyllum demersum. In general when examined at about six in 
the morning, a movement of torsion from left to right is proceed- 
ing ; this then stops and gives place to a movement from right to 
eft, which continues up to about 11 A. M., that is for about five 
hours; the experiments showed a mean of about 36° per hour, 
t. e., of 180° or half the circumference during the whole time. 
The reverse torsion from left to right commences immediately 
the former ceases and goes on at the rate of about 12° an hour— 
one-third that of the morning; estimating its duration at 7% 
hours, its amount is 90°, or one-half that of the morning. Tables 
are given of these results, and show that there is by no means 
Starch and rounded. In short, we have here produced winter 
Vi eg 
OL. XII.—NO, VII. 33 
