Xll 



CONTENTS. 



SECTION PAGE 



XVII. Dissemination of acrogenously formed spores. Abscision. Abjection. 



Disappearance of the sporiferous structure 68 



XVIII. Endogenous spore-formation: 



(a) Sporangia of Phycomycetes 73 



XIX. (V) Asci 76 



XX. Dissemination of endogenously formed spores : 



(a) Phycomycetes 8 1 



XXI. () Ascogenetic spores. Ejection. Mechanical arrangement for 



ejection of spores. Simultaneous and successive ejection. Mechanism 



of simultaneous ejection 84 



XXII. Puffing in Discomycetes 89 



XXIII. Peculiar mode of ejection in Pyrenomycetes 91 



XXIV. Force of ejection 91 



XXV. Reported peculiarities in Lichen-fungi 93 



XXVI. Successive ejection from asci 93 



XXVII. Solution and swelling of asci 96 



XXVIII. Maturation of ascospores after ejection 97 



XXIX. Combinations of different kinds of spore-development ; sporidesms . 98 



II. Structure of ripe Spores. 



XXX. Spore-membrane. Exosporium, episporium, endosporium. Germ- 

 pores. Gelatinous envelopes and appendages. Protoplasm, nucleus, 

 content. Swarm-spores 



99 



III. Germination of Spores. 



XXXI. Tube-germination and sprout-germination. Germ-tube. 



of the mycelium. Promycelium and sporidia . 

 Historical remarks on Chapter III 



Primordium 



109 

 "5 



DIVISION II. COURSE OF DEVELOPMENT OF FUNGI. 

 CHAPTER IV. INTRODUCTION. 



XXXII. General course of development in Algae, Mosses, Ferns, and Phanero- 

 gams. Homologies and affinities. Form-genera and form-species 

 in Fungi. Tulasne's pleomorphy. Gradual recognition of the 

 course of development and of the homologies in Fungi. Main or 

 Ascomycetous and other series 1 19 



XXXIII. Closer consideration of the course of development of the higher 



plants. Archicarp ; fructification. Spore, sporocarp, sporophyte. 

 Sexual and asexual segment of the development. Homology of a 

 member of the development independent of its sexual function. 

 Interruption and restoration of the homologies. Alternation of 

 generations. Homology interrupted and not restored . . . 121 



XXXIV. Agreement of the course of development of the Fungi with that of 



plants which are not Fungi. Meaning of pleomorphy. Misunder- 

 standings and the way to remove them 126 



