331 



bly parasitic, though we failed to demonstrate that We were 

 especially careful in noting the surroundings, because one purpose 

 of our visit was to prove or disprove its parasitism on Artemisia. 



EvANSTON, III., Aug. 15, 1SS9. L. N. JOHNSON. 



Rose Specimens for M. Crepin, Dr. G. N. Best requests those 

 having specimens of North American Roses to be sent to Brus- 

 sels for M. Crepin, to transmit them to him by mail at Rosemont 

 or by express at Centre Bridge, N. J., not later than Jan. ist. 



A Correction. The statement on page 286 of the November 

 Bulletin, that Lobelia Bortiuanna, Utriciilaria intermedia^ Lim- 

 na7ithemiim and Ei'iocatdon septangulare were new to the Flora of 

 Ontario, when collected at Lake Muskoka by members of the 

 Botanical Club of the American Association, ought not to have 

 been made, for all these had previously been collected and even 

 recorded in Professor Macoun's Catalogue. Our apologies are 

 due him and his diligent colleagues for this inadvertence. Sub- 

 uiaria and Elatine were, however, unrecorded from the province. 



Reviews of Foreign Literature. 



British Moss-Flora. R. Braithwaite. Part XII. 



This portion completes one-half of the work, and includes Zy- 

 godon^ Orthotrichii7n, Weissia and Schistostega. The treatment 

 of that difficult genus Orthotrichum is based principally on that 

 of Lindberg (1866), and derives many good points from Venturi 

 (1887), figures of the stomata and cross-sections of the leaves 

 being given in all cases. Of the thirty-three species included in 

 Lesquereux' and James' Manual fourteen are native of England 



', so that much help may be obtained by a study of Dr. Brait^i- 

 waite's work ; also the key to the species will be found of great 



♦ 



assistance. The following changes from the Manual may be 



als 



noted : 



tpestr 



Schleich.; O. leiocarpum, Br. and Sch., returns to its old name, O^ 

 striatum (L.), Hedw.; O. fallax, Schimp., is O, Schimperi,Y{2.m^ 

 ^^ar; O. strangulaium, Beauv., is reduced to a synonymn of O. 

 ciipulatum, Hoffm. It will be seen from this that Dr. Braithwaite 

 does not adopt Lindberg's Dorcadion for Orthotrichum, but he 

 does take up Ehrhart's Weissia for Ulota and six of the species 



