Neue Litteratur. 189 



(Journ. and Proc. ro5\ Soc. N. S. Wales. XLIII. 2. p. 123—138. 3 pi.) 



Nannizzi, A. 1911. Sulla introduzione della Yucca aloifolia L. in 

 Italia [B. C.]. (Ann. di Bot. IX. 2. p. 169—171.) 



Oreutt, Ch. R. 1910. American plants. Vol. III. (San Die^o, Cali- 

 fornia, Ch. R. Oreutt. 1910. 8". pl. 12—26.) 



Pellegrin, F. 1911. Contribution ä l'etude de la flore de l'Afrique 

 occidentale. (Not. Syst. IL 2. p. 62—64.) 



Pennell, F. W. 1911. Some records from the Potomac district. 

 (Torrej^a. XI. p. 130 — 131.) 



Porsild, M. F. 1911. List of vascular plants from the south coast 

 of the Nugsuag Peninsula in West-Greenland. (Medd. om Grön- 

 land, Köbenhavn. XLVII. p. 237—248.) 



Porsild, M. P. 1911. The plant-life of Have Island of the coast of 

 West Greenland. (Medd. om Grönland, Köbenhavn. XLVII. p. 

 249—274. 10 fig.) 



Pulle, A. 1911. Zakflora voor Suriname, le gedeeltc. (Bull. kol. 

 Haarlem. 1911. 47.) 



Ramaley, F. 1911. Remarks on some northern Colorado Plant 

 Communities with special Reference to Boulden Park (Tolland, 

 Colorado). (Univ. Colorado Studies. VII. p. 223 -236). [A sketch of 

 the plant formations, communities and societies near the Univer- 

 sjty of Colorado Mountain Laboratory designed for the use of 

 Summer students. The forests, scrub and grassland are conside- 

 red as also the edaphic conditions and seasonal aspects. — J. W. 

 Harshberger.J 



Riddelsdell, H. J. 1911. Gloucestershire records. (Journ. of Bot. 

 IL. 583. p. 223—230, to be cont.) 



Rubel, E. 1911. Pflanzensfeographische Monographie des ßernina- 

 gebietes. (Bot. Jahrb. XLVII. 1/2. p. 1—296.1 Karte, 1 färb. Taf. 

 58 Abb. 14 Fig.) 



Rubner, K. 1911. Zur Kenntnis der Gattung Epilobium. (Mitt. 

 bayer. bot. Ges. IL 20. p. 355-357.) 



Sargent, S. C. 1911. Trees and shrubs (Vol. IL Part. 3. p. 117— 190. 

 pl. 151 — 175.) 



Schnetz, J. 1911. Rosa gallica L. und Bastarde derselben in der 

 Umgebung von Köningehofen i. Gr. (Mitt. bayer. bot. Ges. IL 20. 

 p. 347—355.) 



Soth, Bl. 1911. List of plants collected above timber line on Pines 

 Peak, with altitudinal cxtensions and notes. (Bull. Torrey bot. 

 Club. XXXVIIL p. 237—242.) 



Stäger, R. 1911. Beitrag zur Verbreitungsbiologie von Taxus bac- 

 cata L. (Mitt. natf Ges? Bern. 1910 [1911]. p. 123—140. 1 Abb.) 



The Orchid World. 1910/11. Edited by G. Wilson. (Haywards 

 Heath, Sussex. Vol. I. 12 nrs.l 



Tsehirch, A. 1911. Ueber die Urfeige und ihre Beziehungen zu 

 den Kulturfeigen. (Schweiz. Wschr. Chem. u. Pharm. XLIX. 22. 

 p. 293—297. 23. 309-315. ill.) 



Vollmann, F. 1911. Skizze der Vegetationsverhältnisse der Umge- 

 bung von Mittenwald. (Mitt. bayer. bot. Ges. IL 20. p. 357—366.') 



W. 1911. Historisches und Geographisches über die Gattung Coelog3'ne 

 Ldl. [Forts.]. (Oesterr. Gart.-Ztg. VI. 7. p. 245—252. 1 Abb. Forts, folgt.) 



Weigle, W. G. and E. H. Frothingham. 1911. The aspens [Populus 

 tremuloides and P. grandidentata]; their orrowth and manaoe- 

 ment. (BulL 93, Fores\ Ser. U. S. Dept. Agri^c. 1911.) 



Wernham, H. F. 1911. A revision of the genus Hamelia. (Journ. 

 of Bot. XLIX. 583. p. 206—216.) 



