140 VEGETABLE PARASITES. 



The Basides are small prominences on the surface of the recep- 

 tacle, consisting mostly of a round, oval, or longish cell, with 

 one or more small cells at its point in the shape of a conical 

 point (spicula, sterigmata), at the end of which a single free 

 and uncovered spore is found. 



The Clinode is an accessory body composed of very small, 

 longish cells, either simple or branching off, with a free spore at 

 its end. It forms uninterrupted filaments of various length, or 

 is provided with partition walls which originate in the cells, 

 which represent the parenchyma of the receptacle. 



Cystides and Paraphyses. There is frequently to be seen on 

 the receptacle or between or along the sides of the sporangia, 

 basides and clinodes, prominent globular or oval cells, some- 

 times in the shape of a thread, simple or branched pointed, 

 blunt or swollen at their free end. These cells in the Peziza3 and 

 Sphseriae are called " paraphyses" and those in the Agaricese and 

 Boleta3 " cystides." They are sometimes, though wrongly, 

 called antheridia, since they have never been found to contain 

 spermatozooids like the antheridia of the Algae. They are of 

 little importance, and little is known about them. They may be 

 considered as accessory vegetative organs connected with the 

 reproductive system. Perhaps they are connected with the simple 

 or branched filaments formed by articulated cells, which are 

 found along the sides of the terminal sporangium in species 

 which are still more simple than the Sphaerice. 



Up to the present time thirteen species, or, if the nail-fungus 

 is to be considered as a separate species, fourteen species of fungi 

 are known ^to attack the human body. They may be divided 

 into three groups. 



TRICHOPHYT^;. 

 I. Trichophyton tonsurans. Tab. II, figs. 1, 2. 



Division I Arthrosporei. 



Receptacula filamentosa, simpUcia aut ramosa, clausa, fere 

 nulla aut nulla. Spori in ordine dispositi ; terminates persistentes 

 aut caduci. 



Tribe Torulacei; Recept. nullum, aut fere nullum, velfloccosum. 

 Sporidia continua. 



Genus Trichophytum (Malmsten). 



