ggß F. Hock: Pflanzeugeographie aussereuropäischer Länder. \QQ 



298. Wiegand, K. M. The extension of some ranges in eastern 

 Mass. (Rhodora, XII, 1910. p. 38-39.) 



299. Knowlton, C. H. Pinus resinosa in Norwood, Mass. (Rhodora, 

 XII, 1910, p. 217—218.) 



300. Eames, A. J. Two plants new to Massachusetts. (Rhodora, 

 XII, 1910, p. 204—205.) 



300a. Deane, 0. Note on Desmodium canescens and Hyoscyamus niger. 

 (Rhodora, XII, 1910, p. 214—215.) 



In Massachusetts; vgl. „Allg. Systematik", B. 454. 



301. Davis, C. A. Salt Marsh formation near Boston and its 

 Geological Signifiance. (Economic. Geology, V, 1910, p, 623 — 639.) 



B. im Bot. Centrbl, OXVI, p. 300. 



302. Bailey, W. W. Eccentricities of Distribution. (American 

 Botanist, XVI. 1910, p. 100—101.) 



Genista tinctoria ist bei Salem, Massachusetts, häufig, Echium vulgare 

 an der Fall-River-Bahn in Ost-Providence, dagegen in anderen Teilen von 

 Rhode Island und dem angrenzenden Massachusetts selten. 



303. Bicknell, Engen. The f erns and flowering plants of Nantucket. 

 (Bull. Torr. Bot. OL, XXXVI. 1909, p. 1-29, 441—456; XXXVII, 1910. 

 p. 51—72.) N. A. 



Pflanzenaufzählung in der Anordnung von Englers System. 



304. Fernald, M. L. Some additions to the Rhode Island Flora. 

 (Rhodora, XII, 1910, p. 216-217.) 



305. Greene, Edward L. Ecology of a Certain Orchid. (The Midland 

 Naturalist, I, 1909, p. 61—65.) 



Behandelt ausführlich die Verbreitung von Cypripedium acaule besonders 

 in Rhode Island, Wisconsin und unfern von Ottawa. 



305 a. Greene, Edward L. Notes on the Stemless Ladys Slipper. 

 (The American Midland Naturalist, I, 1909. p. 125 — 127.) 



Ergänzungen zu vorstehender Arbeit. 



306. Collins, J. F. Sclerolepis uniflora in Rhode Island. (Rhodora, XIL, 

 1910, p. 13.) 



307. Clinton, G. P. Report of the Botanist 1909 and 1910. 

 (Connecticut Agricult. Experim. Stat., Part X (1911), p. 713—774, pl. XXXIII 

 bis XL.) 



308. Morris, Robert T. Natural Checks to Distribution of White 

 Pine. (American Forestry, XVI, 1910, p. 245.) 



Urwüchsiges Vorkommen von Pinus strobus in Connecticut. 



309. Graves, C. B., Eames, E. H , Bissei, C. H., Andrews, L., Harger, E. B. 

 and Weatherby, C. A. Catalogue of the flowering plants and ferns of 

 Connecticut growing without cultivation. (Bull. No. 14, State geo- 

 logical and natural history Survey. State ol Connecticut, Hartford 1910, 

 569 pp., 80.) 



ß) Alleghany provinz. b. 310—364. 



310. Harper, Roland M. A quantitative study of the more con- 

 spicuous Vegetation of certain natural subdivisions of the coastal 

 piain, as observed in travelling from Georgia to New York in July. 

 (Bull. Torr. Bot. OL, XXXVII, 1910, p. 405—428.) 



