BOOK->'OTES, NEWS, ETC. 263 



Arboretum." The number before us contains Notes on American 

 Willows of the Pleonandrw Group, by Camillo Schneider ; a Phyto- 

 geographical Sketch of the Ligneous Flora on Korea, by E. H. 

 Wilson ; Notes on North American Trees by the editor, in the course 

 of which reasons are shown for the retention of Popuhis tacamaliacca 

 Mill, in place of P. candicans Ait., and Catesby's specimen in the 

 British Museum Herbarium is accepted as the type of P. lalsami- 

 fera L. ; and a paper on " New Species, Varieties and Combinations for 

 the Herbarium and Collections of the Arnold Arboretum " by Alfred 

 Rehder, which is prefaced by some interesting remarks on nomen- 

 clatm-e, especially as this relates to horticulture. The paper contains 

 a large number of new combinations, based as these always should be, 

 on a careful study both of plants and synonjany ; Ave note that 

 '' Ahies alha Mill. Diet. ed. 8, no. 1 (1768) ""^ for the adoption of 

 which for Piniis Picea L. sufficient reasons seem to be given. We 

 note that Mr. E. H. Wilson, who has returned after an absence of 

 more than two A^ears in Japan, has been appointed Assistant Director 

 of the Arboretum. 



The Journal of the New York JBofanical Garden for June 

 contains an article on " Brackenridge and his Book on Ferns " by 

 Dr. J. H. Barnhart. Although he died in 1893, William D. 

 Brackexeidge does not aj^pear in the Third Supplement to the 

 Biographical Index, though he had every claim to inclusion, as he 

 was born at Ayr, June 10, 1810, and was in charge of Patrick Neill's 

 grounds at Canonmills, Edinburgh : after this he spent several 3'ears 

 on the Continent, part of the time in Poland and the rest under 

 Friedi'ich Otto at Berlin. He went to America about 1837, and in 

 1838 was attached as assistant botanist to the U.S. Pacific Exploring 

 Expedition. Dr. Barnhart gives a detailed account of the expedition 

 and of Brackenridge's connection with it. On its return, in 1842, the 

 preparation of the report on the ferns collected was placed in his 

 hands, and, after many dela3^s and difficulties, was issued in 1854-55 

 as vol. xvi. of the Expedition Series ; owinjsr to destmction by fire, 

 copies of the volumes are rare. In 1855 Brackenridge settled near 

 Baltimore, where he became a nurseryman and landscape architect ; 

 "he was for some years horticultural editor of the American Farmer, 

 but his one book was his only contribution of importance to botanical 

 literature " ; he died at Baltimore on Feb. 3, 1893. He is com- 

 memorated in the genus Brackenridge a A. Gray (Ochnacese). 



The Kew Bulletin (1919, no. 4, published in June) contains a 

 paper by Mr. W. B. Grove on '* Species placed by Saccardo in the 

 Genus Blwma " ; of these a large number are transferred to 

 other geneiu ; there are numerous illustrntions and some new species 

 are described. Mr. Rolf e has what is evidently a careful historical 

 account of " The True Mahoganies," of which three species are recog- 

 nized — Sivietenia Mahagoni Jacq., S. humilis Zucc. and S. macro- 

 p)hylla King. The number also contains a paper on the cultivation of 

 New Zealand Flax {Phormium tenax) in Co. Kerry, and a note on 

 a collection of about 600 drawings of Indian plants which "appear to 

 have been at one time the property of Claude Martin, who was born 

 at Lyons on Jan. 4, 1731, went to India in 1751, and, as an officer of 



