Floristik, Geographie, Systematik etc. 189 



gend des Schanfiggs und des Prätigaus. (Jahresb. naturf. 



Ges. Graubündens. LVI. 19 pp. 1916.) 

 Enthält Standortsangaben seltenerer Pflanzenarten, die der 

 Verf. 1905-1908 im Schanfigg und seither im Prätigau gefun- 

 den hatte. Besondere Erwähnung verdient Galium Mollugo L. var. 

 sprechen Briq. var. nov., vom Verf. bei Küblis im Prätigau 

 entdeckt, eine eigentümliche Rasse mit dem Charakter der ssp. 

 elaturii Lange, aber mit lebhaft rosafarbenen Kronblättern, wie 

 bei den in Corsika endemischen G. Bernardi Gren. Godr. und G. 

 venustum Jord. E. Baumann (Zürich). 



Stewart, A., Further Observations on the Origin of the 

 Galapogos Islands. (The Plant World. XVIII. p. 192—200. 

 July 1915.) 



The author believes that these islands are truly oceanic; but at 

 some remote period may have been connected together. He pre- 

 sents briefly the evidence from the Zoologie side and more in detail 

 the botanic. He believes after weighing the evidence of the rela- 

 tionship of the flora to that of other island groups, such as the 

 Hawaiian, that the only way we can account for its origin is through 

 the Chance methods of distribution of seeds and spores borne over 

 large bodies of water. Harshberger. 



Stewart, A., Some Observations concerning the Botani- 

 cal Conditions of the Galapagos Islands. (Trans, Wisc. 

 Acad. Sei. a. Arts. Letters XVIII. p. 272—340. Oct. 1915.) 

 The attempt is made in this contribution to describe in a 

 general way the botanic conditions of the different Galapogos 

 islands as the author saw them with no attempt to describe the 

 floras of the several islands in a detailed way, especially the condi- 

 tions in the interior of the islands, because of the dense growth 

 and because of the scarcety of water. Harshberger. 



Stewart, R. R., Some Observations on the Flora ofthe 

 Northwest Himalaya. (Torreya. XV. p. 251-260. With 4 figs. 

 1915.) 

 This is an account of two summers of travel in the northwest 

 Himalaya and western Tibet during three years of Service in 

 an American coUege in the northern part of the Punjab. The ge- 

 neral character of the country is described with mention of the 

 principal trees seen and their altitudinal distribution. 



Harshberger. 



to' 



Visher, S. S., Notes on the Significance ofthe Biota and 

 of Biogeography. (Bull. Amer. Geogr. Soc. XLVII. p. 509— 520. 

 July 1915.) 



The study of the native flora and fauna is well worth while, 

 because 1) it makes practicable a comparison even of widely sepa- 

 rated areas in respect to climate, ground-water and soil; 2) it extends 

 our knowledge of geographic conditions making possible the selec- 

 tion of animals and plants for introduction into a country; 3) the 

 flora indicates at times agricultural possibilities; 4) Vegetation and 

 animals affect run-off, erosion, etc.; 5) the native biota has influenced 



