499 
baceous plants is also included, under the heading ‘ Medicinal 
Herbs,’ and finally there is what purports to be a list of ‘Grasses.” 
In this latter may be noted species of Carex, Scirpus, Cyperus, Jun- 
cus, Eleocharis, Rhyncospora, Lespedeza (/) etc. OS » 
Rhipsalis Warmingiana. G. A. Lindberg (Gartenfl. xli. 8, with 
figures). 
Riparian Botany of the Lower Sacramento. Willis L. Jepson 
(Erythea, i. 238-246). 
Robinia Neo-Mexicana. \. Wittmark and F. Brettschneider (Gar- 
tenfl. xli. 649, with colored plate). 
Rodriguesia Calopectron. ¥E. Regel (Gartenfl. xli. 281, with colored 
plate). 
Rubber of the Orin iets A. Ernst (Bull. Misc. Infor. Trin- 
idad, Roy. Bot. Gard., June, 1893). 
Describing Hevea Brasiliensis and the methods by which the 
rubber is collected. . 
Rust of Mountain Ash—The. Byron D. Halsted (Gard. and For. 
vi. 508). 
Note on Gymnosporangium globosum. 
Salvinia natans on Staten Island. W. C. Kerr (Proc. Nat. Sci. 
Assoc. Staten Island, October 14, 1893). 
Record. of its recent introduction. 
Sap of Trees and its Movements—The so-called. Charles R. Barnes 
(Science, xxi. 239-241). 
An address delivered before the State Horticultural Society of 
Wisconsin. 
Sectioning Fern Prothallia and other delicate Objects W. B. 
Thomas (The Microscope (II.) i. 167-168). 
Selective Absorption of Heat by Leaves. G. A. Meyer (Trans. Kan- 
sas Acad. Sci. xiii. 48). : 
Senecio sagittifolius. J. D. Hooker (Curtis Bot. Mag. xlix. t. 
7322). | 
Describes a new species from Uruguay. 
 Serjania—Arten—Drei neue. L. Radlkofer (Bull. Herb. Boiss. i. 
464-468). ee a | 
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