Floristik, Geographie, Systematik etc. 125 



Kpoeber, A. L., Floral Relations among the Galapagos 

 Islands. (Univ. Calif. Publ. in Bot. VI. p. 199—220. March 10, 

 1916.) 

 After a careful comparison of the flora of the different islands 

 of the group which are tabulated, the author concludes that so far 

 as the number of Joint species is concerned, the floras of the va- 

 rious Galapagos islands do not show any unaccountable rela- 

 tions or mysteries, but almost exactl)^ such connections as might be 

 expected. Secoudly, Islands in proximity have more species in 

 common than those that are far apart. Thirdly, there appears to be 

 a slightly greater inlluence of the southeastern than of the westetn 

 and central groups upon most of the smaller islands. 



Harshberger. 



Reed, E. L., Ecologic Notes on Drosera anmia. (Torreya. XVI. 

 p. 125—130. June 1916.) 



Drosera annua is a newly described species found in open oak 

 woods near College Station, Texas. The climatic and soil condi- 

 tions of the neighborhood are described with the aid of two graphs 

 and several tables and the plants inside and outside of a quadrat 

 are Usted. The author states that D. annua is an annual, appearing 

 about February 1. It grows in a fine sand with a small per cent 

 of silt and clay with a low nitrogen content. Such a soil dries 

 rapidly. The water content of its habitat ranges from 6 to 25 per 

 cent during the life period of the plant. The minimum requisite of 

 water in this soil is 6 per cent, while the Optimum lies somewhere 

 beyond this point. Harshberger. 



Rhoods, S. N., William Youngjr. (of Philadelphia) "Bo- 

 taniste de Pensylvanie" and hisLong-ForgottenBook 

 being a Facsimile Reprint of his "Catalogue d'Arbres 

 ArbustesetPlantesHerbacees d' Amerique", published 

 in Paris in 178 3. WithPrefatoryAccountoftheAuthor 

 and Critical Notes by the Editor, privately printed. 

 (Philadelphia 1916.) 



This attractively bound book is a Photographie reprint of the 

 one published in 1783 and which came to light though the purchase 

 of a volume from a second handbook dealer in Edinburgh, Scot- 

 land. William Young lived near John Bartram and was a 

 rival of his in the plant trade with European plant lovers and bo- 

 tanists. He was made Queen's botanist and died in 1785, aged 43 

 years. He travelled extensively in the southern states and his 

 catalogue is the first book on botany published by an American. 



Harshberger. 



Rocky, J. F., Palmyra Island with a Description of the 

 Flora. (Bull. 4 College Hawaii Publications. 53 pp, 20 pl. with 

 map. April 19, 1916.) 



This is a detailed description of Palmyra Island and its 

 plant covering,. which consisted of 38 species of plants, 12 algae, 3 

 fungi, 7 lichens, 1 moss, 2 ferns and 13 flowering plants. Palmyra 

 Island, which is a coral atoll with 52 islets, has the following 

 flowering plants: Pandanus Rockii Martelli n. sp., Pandanns pulpo- 

 sus Martelli var. Cooperi n. var., Monerrna repens (R. Br.) Beauv. 



