284 BOTANICAL GAZETTE [Marcu 
who finds the generalized root type most extensively developed and a penetra- 
tion of 60-70 inches not uncommon 
The reports abound in interesting details too numerous to mention in a 
review, are carefully organized and well illustrated with graphs, drawings, and 
rming a notable contribution to our knowledge of the vegetation 
of an unusually interesting region —Gro. D. FULLER. 
Taxonomic notes.—B1ake's has described a new variety of Vernonia 
altissima ee which occurs from Indiana and Illinois to Missouri and 
Mississi 
con has published a list of the Cuban species of Riynchospora, with 
an analytical key. It is in Spanish and appears among the publications 
entitled “Memorias de la Sociedad Poey.” The author lists 55 species, 6 of 
which are described as new 
Burt,” in continuation of his studies of North American Thelephoraceae, 
has monographed the genus Coniophora, recognizing 19 species, 5 of which are 
described as new. : 
Davie," in connection with the publication of a list of plants collected in 
Brazil in 1914, has described new species in Gaultheria and Pleurostachys. 
z LD,” in a series of short papers, has described new species and vari- 
eties in Saxifraga (province of Quebec) and Vitis (New England); also new 
varieties in various species of Polygonum, Ranunculus (4), Anemone, Saxifraga, 
mire UhaCGey: and Aster 
and RENDLE” have described 3 new species of Byrsonima and a 
new paherailees from Jamaica. 
Hx” has published a revision of the genus S trychnos in India and through- 
out the East. In that region he recognizes 91 species, 24 of which are described 
as new. 
HEMSLEY” has described a new arborescent genus of Euphorbiaceae 
(Riseleya) from the Seychelles. It seems to be restricted to Mahé, where it 
was formerly common in the mountains. 
S BLAKE, S. F., Rhodora 19:167. 1917. 
Britton, N. L., El genero Rhynchospora Vahl, en Cuba. Contrib. Jard. Bot. 
N.Y. no. 194. pp: 16. 1917. 
7 Burt, E. A., The Thilethoracens of North America. VIII. Coniophora. 
Ann. Mo. Bot. Gard. 4:237-269. figs. 19. 1917. 
*® Davie, R. C., Some Brazilian plants. Jour. Botany 5§:215-223. 1917- 
* FERNALD, M. L., Contrib. Gray Herb. 19:133-155. 1917 
58 uietgeide o , and —- A. B., Notes on Jamaica ‘iui Jour. Botany 
§5:268-271. 19 
2 Hitt, A. - _ eis Strychnos in India and the East. Kew Bulletin, 1917: 
nos. 4 and 5. » {21 
22 
, Ww. ome as Turritt, W. B., Plants of Seychelles and Aldabra- 
Jour. Botany sg: 285-288. 1917. 
