CONTENTS. 



XV 



SECTION 



LXXIII. 



LXXIV 



PAGE 



Occurrence of known or supposed members of the development of 

 some species outside the normal connection. Tendency of these to 

 constantly similar production. Hence a possible reduction or 

 splitting of a species 251 



Determination of organs of propagation which have been considered to 

 be rudimentary . . .255 



Literature of sections LIX— LXXIV 261 



LXXV. 

 LXXVI. 



LXXVII. 

 LXXVI 1 1. 



LXXIX. 



LXXX. 



LXXXI. 



LXXXII. 



LXXXIII. 



Doubtful Ascomycetes. 

 Helicosporangium. Papulaspora. Laboulbenieae 



Introduction 



Exoascus ..... 



Saccharomyces 



Affinity between Exoascus and Saccharomyces. 



of the latter group to the Ascomycetes . 

 Confusion between the ' Yeast-plants ' 

 Literature . 



Possible relations 



Uredineae. 



Aecidia-forming and Tremelloid Uredineae. Sporocarps (aecidia) 

 and spermogonia of the aecidia-forming species. Course of de- 

 velopment of Endophyllum 



Aecidia-forming Uredineae with gonidia : teleutopores, uredo . 



Uredineae with imperfectly known course of development 



Tremelloid Uredineae . 



Relationship between Uredineae and Ascomycetes .... 



Literature 



263 

 265 

 267 



269 

 270 

 272 



274 

 279 

 282 

 283 

 285 

 285 



Basidiomycetes. 



LXXXIV. Introduction 



Hymenomycetes. 



LXXXV. Conformation of unveiled sporophore ...... 



LXXXVI. Veiled sporophore. Velum. Annulus. Volva .... 



LXXXVII. Structure of full-grown sporophore 



LXXXVIII. Hymenium. Cystidia. Basidia 



Gastromycetes. 

 LXXXI X. Comparative account of the differentiation of the sporophore . 



XC. Special morphology, history of development and anatomy of the 

 same 



XCI. 



XCII. 

 XCIII. 

 XCIV. 



Course of development and affinities of Basidiomycetes. 



Course of development of perfectly known form. Exobasidium, 

 Tremellineae, Typhula, Coprinus, Agaricus melleus, Crucibulum 

 and Cyathus, Sphaerobolus 



Gonidia of Basidiomycetes which have been thoroughly examined 



Imperfectly known and doubtful gonidia 



Homologies and affinities of Basidiomycetes .... 



Literature 



286 



287 

 289 

 297 

 300 



308 

 312 



328 

 331 

 333 

 337 

 34i 



