Floristik und Systematik der Phanerogamen. 153 



gegen, das so viele alte Typen der Pflanzenwelt beherbergt^ sich er- 

 halten konnte. Zum Schluss wird vom Verf. die Vermuthung ausgesprochen, 

 dass die wenigen, noch jetzt im westlichen Europa (Irland und 

 Norwegen) vereinzelt vorkommenden amerikanischen Pflanzenarten 

 als „interglaciale Relicten" der letzten Interglacialzeit, nicht als Neuein- 

 wanderer anzusehen seien. W. Wangerin (Halle a. S.). 



Leveille, H., Quelques Amenface'es wo UV e\\ es d'Extreme- 



Orient. (Bull, de la Soc. Bot. de France. T. LH. 1905. 



p. 141 — 143.) 



Especes nouvelles : Salix Kinashü Levl. et V^aniot de Japon, 5. 

 dodecanclra et Popnlus macranfliela Levl. et Vaniot du Kouy-tcheou 

 (Chine), Castanea Fauriei Levl. et Vaniot du Japon, C. Bodinieri 

 Levl. et Vaniot de Yun-nan, Qnercus carpostachys Levl. et Vaniot du 

 Japon, Q. Cavaleriei et Carpiniis Pinfaensis Levl. et Vaniot du Kouy- 

 tcheou. J. Offner. 



Leveille, H., Remarques sur quelques Renoncnlacees 



chinoises. (Bull. Acad. intern, de Geogr. bot. XIV. 1905, 



Nos. 185 — 186. p. VII— Vin.) 



En outre de quelques rectifications ä des especes publiees prece- 

 demment, l'auteur complete les diagnoses d.' Anemone begoniifolia Levl. 

 et Vant. et (XA. Boissiaei Levl. et Vant., decrit recemment par Einet et 

 Gagnepain sous le nom d'Ac/uilegia Henryi. J. Offner. 



Mackenzie, K. K. and B. F. Bush, New Plants from Mis- 

 souri. I Report of the Missouri Botanical Garden. XVI. 

 p. 102—108. [May 31] 1905.) 



Sagittaria brevirostra, Henchera pnbernia, Convolvnltis fraterni- 

 florns {C. sepium fraterniflorns iMack. and Bush), Dasystoma calycosa, 

 Xanthinni infle.xiim (X. speciosuni Mack. and Bush) and Senecio semi- 

 cordatiis. Trelease. 



North American Flora. Volume XXII. Part I. Published by the 

 New York Botanical Garden. May 22, 1905. large 8'\ 80 pp. 

 Doli. 1.50. 



Thüugh forming part of the 22d voIume, this is the initial fascicle 

 of a work long contemplated by Dr. Britton, the Director of the New 

 York Botanical Garden, who, with Prof. Underwood of Columbia 

 University, is to edit it. The editors have associated with themselves an 

 advisory committee, containing some of the best known names in Ameri- 

 can systematic botany, and are securing the Cooperation of a large 

 number of specialists in the preparation of manuscript. 



The new Flora, is one of the largest undertakings of its kind. 

 From the arctic regions to the Isthmus of Panama, with inclusion of 

 Ihe West In dies, the entire North American flora of all groups 

 is to be included, and as blocked out the completed work is to consist 

 of 30 volumes of four or five parts each, — a total of perhaps 12 000 

 pages. It can obviously be completed, if at all, only through the ener- 

 getic coordinated work of a considerable number of coUaborators favo- 

 rably situated for access to large coUections and libraries and in close 

 touch with the great centers of Europe, Like all composite work, it 

 must of necessity be heterogeneous in quality ; and so large a part of 

 the territory to be covered is as yet imperfectly explored as to make it 

 certain that the work will be very far from complete whcn done. Not- 

 withstanding all this, however, its publication will furnish a means, now 



