1131 



" Depnzea crepidophora, Mont. MSS. Maculis orbicularibus fiiscis 

 sero griseis fusco limilatis; peiitbeciis minimis; ascis crepidiformi- 

 bus minutis ; sporidiis oblongis uniseptatis. Welw. No. 51. On living 

 leaves of Viburnum Tiuus, near Caldas da Rainha, August, 1850. 

 Obs. — 1 have not been so fortunate as to find perfect fruit in this spe- 

 cies, and I therefore describe it from a sketch by Dr. Montague. 



" Septoria Pisi. Maculis parvis orbicularibus ; sporis filiformibus 

 breviusculis robustioribus. Welw. No. 64. On leaves of Pisum sati- 

 vum, in fields near Ajuda, March. Distinguished by its more robust 

 and shorter spores. 



" Phoma Cadi. Maculis sub orbicularibus 1. efFusis ; peritheciis 

 majoribus prominulis ; sporis minutis oblongo ellipticis ; sporophoris 

 filiformibus. Welw. No. 72. On dead Cactus peruvianus ; Lumiar. 

 Ohs. — Bursting through the cuticle and having the aspect of a minute 

 Diplodia." 



' The London Catalogue of British Plants. Published under the 

 direction of the Botanical Society of London. Adapted for 

 marking Desiderata in Exchanges of Specimens, 8fc. Fourth 

 Edition, London : William Pamplin, 45, Frith Street, Soho. 

 1853. Price 6d.' 



The issue of a fourth edition of this Catalogue affords irrefragable 

 evidence of the progress of British Botany, and of the success of that 

 Society whence it emanates. The prominent characteristic of the 

 Botanical Society of London is the exchange and dissemination of 

 well-named specimens ; and in this it has fairly distanced every com- 

 petitor. Indeed, so decidedly is this the case, that, numerous as are 

 the notices and advertisements which have reached us, we scarcely 

 know whether any of the competing Societies have outlived their 

 announcement, whether they still exist, or still aim at carrying out 

 their views according to their own programme. Perhaps we cannot 

 do the botanists of this country a better service than recording, we 

 might say reiterating, the conditions under which the distribution of 

 specimens is carried out. 



" The Botanical Society of London is a central institution for effect- 

 ing exchanges of Specimens between Members of the Society in any 

 part of Britain ; also, for exchanges with Foreign Botanists, who are 

 not required to become members in order to obtain the same privilege. 



" Members send their spare duplicates to the central depot in 



