THE CLASSIFICATION OF PLANTS 2141 



XXX. Angiocarpeae III. Fungi Imperfecti 



Hymenogastrineae i. Sphaeropsidales 



Lycoperdineae 2. Melanconiales 



Nidulariineae 3. Hyphomycetes 

 [3. Plectobasidieae 



Sclerodermineae 



From it we see that Schroter has accepted the idea that the Phyco- 

 mycetes are not simply Chlorophyceae which have lost their chlorophyll, as 

 had been previously maintained, but a separate group forming the lowest 

 class of the true Fungi. This system therefore was in advance of that 

 formulated by Lotsy in his " Vortrage iiber die botanische Stammes- 

 geschichte", the first volume of which appeared in 1907. 



Schroter's system maintained its popularity for a considerable time, 

 during which a number of monographical accounts of individual groups of 

 the Fungi appeared. It is unnecessary here to mention more than a few. 

 Among those most noteworthy are Lister's " Mycetozoa " (1894), Massee's 

 " Myxogastres " (1892), "British Fungus Flora" (Hymenomycetes and 

 Ascomycetes) (1892-5), "Mildews, Rusts and Smuts" (1913), Smith's 

 " British Basidiomycetes " (1908), Grove's " British Rust Fungi " (1913), 

 Rea's " British Basidiomycetae " (1922), Coker's " Saprolegniaceae " (1923), 

 " Clavariaceae " (1923) and " Gasteromycetes " (1928), Stevens' " Fungi 

 which cause Plant Disease " (1921) and Cunningham's " Gasteromycetes " 



(^944)- , , , u 



Systematic mycology was greatly enlarged by these works, but the 



system of classification was more influenced by the publication in Europe of 



Rabenhorst's " Kryptogamenflora von Deutschland, Oesterreich und der 



Schweiz", the fungal volumes of which were published between 1884 and 



1918, and the " Kryptogamen Flora der Mark Brandenburg", which 



appeared between 1909 and 1915 under the editorship of G. Lindau. 



In Britain the most important revision of the classification of the Fungi 



was due to Gwynne Vaughan, who in 1922 published a volume on the 



" Ascomycetes, Ustilaginales and Uredinales". This was followed in 1927 



by a further volume, " The Fungi", by Gwynne Vaughan and Barnes, in 



which an account of all the groups of the Fungi was included. The following 



is an outline of the classification adopted in the latter work: 



A. PHYCOMYCETES III. Zygomycetes 

 I. Archimycetes i. Mucorales 



1. Chytridiales 2. Entomophthorales 



2. Ancylistales B. ASCOMYCETES 



3. Protomycetales I. Plectomycetes 

 II. Oomycetes i- Plectascales 



1. Monoblepharidales 2. Erysiphales 



2. Saprolegniales 3- Exoascales 



3. Peronosporales 



