THE president's ADDRESS. 259 



Description of the Figures. 



I. Myrott'ichit'ni ic7ici7iatus, Schroter. A member of the 

 Gymnoascaceae, the simplest in organisation of asci- 

 gerous fungi. 1, Plants, natural size. 2, Plant 

 enlarged. 3, Portion of the irregular peripheral net- 

 work bearing two projecting hooked appendages, highly- 

 magnified. 4, Ascigerous hypha bearing three asci, 

 each containing 8 spores, highly magnifi.ed. 



II. Ascoholus immersits, Pers. A typical dung fungus be- 

 longing to the Discomycetes. 1, Fungus, natural size, 

 on rabbit dung. 2, Surface view of fungus, slightly 

 magnified. 3, Section of fungus, showing the mature 

 asci or mother-cells containing the spores, projecting 

 above the surface of the body of the fungus, slightly 

 magnified. 4, An ascus containing 8 spores, highly 

 magnified. 



III. Syncephalis intermedia^ Van Tiegh. One of the Phyco- 



mycetes. 1, Plants natural size. 2, A plant, highly 

 magnified. 3, Head of a plant with most of the spores 

 removed in order to show their mode of origin from 

 minute spicules on the swollen apex of the stalk, highly 

 magnified. 4, A single spore, highly magnified. 



IV. Oedocephalum glomerulosimi, Sacc. One of the Hypho- 



mycetes. 1, Plants, natural size. 2, The same, highly 

 magnified. The right-hand specimen has most of the 

 conidia removed to show their mode of attachment to 

 minute spines covering the globose apex of the stem. 



V. Magnusia nitida, Mass. & Salm. One of the Perisporiae. 

 1, Fungus growing on fragments of dead grass, natural 

 size, 2, A perithecium or fruit of the fungus, showing 

 the numerous slender curved appendages ; highly 

 magnified. 3, Ascus containing eight spores, highly 

 magnified. 



