Neue Litteratur. 139 



Gräbner, P. 1911. Ueber Veränderungen von Vegetationsforma- 

 tionen. (Ber. westpreuss. bot.-zool. Ver. Danzig. XXXII. p. 54 — 60.) 



Greene, E. L. 1911/12. Accessions to Apocynum. (Leafl. bot. Obs. 

 II. p. 164 and 165-189.) 



Greene, E. L. 1912. Accession to Canadian Botany. I. (Ottawa Nat. 

 XXV. p. 145—147.) 



[Greene, E. L.] 1912. New species of Trautvetteria. (Leafl. bot. 

 Obs. II. p. 190—193.) 



Griffiths, D. 1912. Illustrated Studies in the genus Opuntia. IV. 

 (Rep. Missouri bot. Gard. XXII. p. 25—36. 17 pl.) 



Griffiths, D. 1912. The Grama grasses: Bouteloua and related ge- 

 nera. (Contr. U. S. nation. Herb. Washington. XVI. p. 343—428. 

 figs. and pls.) 



Hall, H. M. 1912. New and noteworthy Californian plants. I. (Univ. 

 California Public. Bot. IV. p. 195—208.) 



Harnet, R. 1912. Recherches sur le Crassula sediformis Schw. (Rev. 

 gen. Bot. XXIV. p. 145-148.) 



Harnet, R. 1912. Sur un nouveau Sedum du Tibet. (Bull. Soc. bot. 

 France. LVIII. p. 615—617.) 



Hayata, B. 1911. Icones Plantarum Formosanarum nee non et Con- 

 tributiones ad floram Formosanam. Or, Icones of the plants of 

 Formosa, and materials for a flora of the island, based on a study 

 of the collections of the botanical survey of the Government of 

 Formosa. Fase. 1. (Publ. by the Bureau of Productive Industry, 

 Govt. of Formosa. Taihsku. 1911. 8°. 265 pp. 40 pl.) 



Hegi, G. 1912. Illustrierte Flora von Mittel-Europa. 31. Lfgr. (Mün- 

 chen. J. F. Lehmann. 1912. 8°. p. 473—504. ill. Preis Mk 1,50 

 pro Lfrg.) 



Heller, A. A. 1912. New combinations. VI — VII. (Muhlenbergia. 

 VII. p. 20 and 139.) 



Heller, A. A. 1912. The flora of the Ruby Moyntains. IV. (Muhlen- 

 bergia. VIII. p. 21 — 24. 1 pl.) [Contains as new Apocynum cine- 

 reum. — Trelease.] 



Hofmann, A. 1911. Die japanische Schwarzkiefer [Pinus Thunbergii 

 Pari.]. (Oesterr. Vierteljahrschr. Forstw. Wien. XXIX. p. 359—363.) 



Hubbard, F. T. 1912. Sorne Panicums of Essex County, Mass. 

 ^Rhodora. XIV. p. 36-40.) 



Hy, F. 1912. La Vendee consideree comme unite geographique et 

 caracterisee surtout par sa flore. (Bull. Soc. bot. France. LVIII. 

 p. XXVI-XXXI.) 



Hy, F. 1911. Sur l'employ de la langue francaise dans la nomen- 

 clature botanique et les noms vulgaires des plantes. (Bull. Soc. 

 bot. Deux-Sevres. XXII. p. 103.— 114.) 



Icones (1911) Florae Japonicae, compiled by the College of Science, 

 Imperial University of Tokyo. Vol. I. Part 4. (Published by the 

 Universit5 r , Tokyo, Japan. 1911.) 

 Johnson, D. S. and H. H. York. 1912. The relation of plants to 



tide levels. (John Hopkins Univ. Circ. 1912. p. 1—6.) 

 Johnson, D. W. 1911. Botanical evidence of coastal subsidence. 



Science N. S. XXXIII. p. 300—302.) 

 Johnson, T. and M. C. Knowles. 1910. Hand list of Irish fiowering 



Plants and Ferns. (Nation, mus. Sc. and Art. Dublin, 1910.) 

 Kawakami, T. 1912. On some Celebes plants. (Bot. Mag. Tokyo. 



XXVI. p. 49—50.) 

 Kennedy, G. G. 1912. Quercus imbricaria Michx. in Massachusetts. 

 (Rhodora. XIV. p. 34—35.) 



