78 ECOLOGY, PLANT GEOGRAPHY [BoT. Absts., Vol. X, 



487. Harpek, Roland M. Southern Louisiana from the car-window. Torreya 20: 67-76. 

 1920. — The vegetation of southern Louisiana has not been extensively described. The author 

 has made 2 trips across the territory, the 1st in July, 1915, from New Orleans westward on the 

 Southern Pacific, and the 2nd in August, 1918, from New Orleans to Baton Rouge, and thence 

 westward to the Sabine River. Five regions are enumerated: the Sugar-Cane Region, the 

 Cotton Region, the Prairies, the Long-Leaf Pine Region, and the Hammock Forests. Lists 

 of species observed from the train in passing through each of these regions are given; the deter- 

 mination in many cases is merely conjectural. — J. C. Nelson. 



488. Hitchcock, A. S. Report on a recent trip to British Guiana. Jour. New York Bot. 

 Gard. 21 : 129-137. PI. 2^8-2^9. 1920.— The author presents general information on the cli- 

 mate and vegetation of the region, and describes in detail his method of drying plants for 

 herbarium specimens. — H. A. Gleason. 



489. MoNCKTON, Horace W. The flora of the district of the London clay. [Abstract.] 

 Rept. British Assoc. AdV. Sci. 1919: 335. 1920. 



490. ScHLBCHTER, R. Die Verbreitung und das Auftreten der Orchideen in Europa nebst 

 Winken iiber ihre Kulture. [The distribution and occurrence of orchids in Europe together with 

 hints as to their culture.] Orchis 13 : 19-25, 35—40. 1919. — Some 120 species of native orchids 

 occur in Europe; many of these are worthy of cultivation. The various genera and species 

 are listed with notes concerning distribution and culture. — E. B. Payson. 



491. Small, J. K. Cjrpress and population in Florida. Jour. New York Bot. Gard. 21: 

 81-86. PI. 24-5-247. 1920. — The cited ranges of Taxodium distichum and T. ascendens cover 

 only the portions of Florida already settled. Both species actually extend much farther south. 

 The plates illustrate the habit and leaf form of both species. — H. A. Gleason. 



492. Small, J. K. Of grottoes and ancient dunes. Jour. New York Bot. Gard. 21 : 25-38, 

 45-54. PI. 241-244. 1920. — The author gives extended notes on a 1200 mile trip through 

 various parts of Florida, describing the prevailing vegetation and citing numerous species. 

 The fern grottoes are occupied by a dense and luxuriant growth of 14 species of ferns. J. H. 

 Barnhart adds, in footnotes, brief biographies of John Bartram, William Bartram, William 

 Baldwin, Severn Rapp, Mary Evans Francis, Cameron Mann, A. H. Curtiss, and John Donnell 

 Smith. — H. A. Gleason. 



493. T., W. B. Carex riparia, var. gravilis in Britain. Kew Bull. 1920: 141. 1920. 



494. Taylor, Norman. A rare palm from Cuba in the conservatories. Brooklyn Bot. 

 Gard. Rec. 9: 101-102. 1920. — A specimen of this palm, Coccothrinax crinita (Griseb. & H. 

 Wendl.) Becc. {Thrinax crinita Griseb. & H. Wendl.), was discovered by Charles Wright in 

 eastern Cuba "during our Civil War." Until quite recently no living specimen was known. 

 The specimen in the Brooklyn Botanic Garden was collected on March 17, 1894, by R. D. Hoyt, 

 of Clearwater, Florida, in western Cuba (Pinar del Rio). It is suggested that the original 

 record may have been in error. — C. S. Gager. 



495. Thomas, H. Hamshaw. On the desert flora of western Egypt. [Abstract.] Rept. 

 British Assoc. Adv. Sci. 1919: 332. 1920. 



496. TuRRiLL, W. B. Botanical exploration in Chile and Argentina. Kew Bull. 1920: 

 57-66. 1920. 



497. TuRRiLL, W. B. Botanical results of Swedish South American and Antarctic expedi- 

 tions. Kew Bull. 1919: 268-279. 1919. 



498. Wbatherby, C. A. A European primrose in New England. Rhodora 22: 143. 

 1920. — The discovery of a colony of Primula officinalis (the English cowslip) well established 



