120 VEGETABLE PAEASITES. 



in the extreme cell of a tube whose contents serve for the pro- 

 duction of the spores. 



The spores, sporules, corps, reproducteurs, sporidia, spora, 

 sporulce, corpora or cellula gonimicce, spermatia, &c., are round 

 or oval bodies, containing universally in their interior finely granu- 

 lated corpuscles. They vary in sfze, but are easily distinguished 

 either by their appearance or their germination. 



Man, according to Robin, grows on his body ten species of 

 AlgaB, distributed in five genera ; or if the five species of Lepto- 

 mitus are to be regarded as one, then five species in five genera; 

 or if the genus Leptomitus is regarded as a depauperated fungus, 

 which will not fructify because deprived of the air (Robin), then 

 four species in four genera. They all belong to the class Iso- 

 carpece, and the order Eremospermece, with the exception of 

 Merismopoedia Ventriculi, which Meyen has placed in the tribe 

 Palmellece. 



I. Cryptococcus Cerevisice. Tab. I, fig. 1. 



Class Isocarpece : " Fructus verus (cellula) in singularibus 

 speciebus uniformis ; spermatia vera matura (cellula) semper oli- 

 vaceo-fusca, ex cellula hologonimica formata" 



Sub-class II Malacophycece : (l Phycoma ex cellulis organicis 

 (gelineis, anylideis, gelatineis, fucineis ve) compositum, interaneis, 

 gonimicis, viridibus, raro rubris vel achromaticis" 



Tribe Gymnospermea : " Spermatia ex cellulis vel superfi- 

 cialibuSj vel subcosticalibus medullaribusque formata, nee spermangio 

 communi inclusa" 



Order I Eremospermece : " Spermatia in superficie phycomatis 

 sparsa" 



Sub-order I Mycophycece ; " Algce mucedine plerumque achro- 

 maticae, raro luteolescentes vel rubrae in corporibus organicis vel in 

 solutionibus crescentes" 



Family Cryptococcece : " Globuli gonimici minutissimi solidi 

 mucosi, in stratum indefinitum aggregati." 



Genus Cryptococcus : " Globuli gonimici in stratum amorphum 

 diffusum aggregati" 



Species Cryptococcus cerevisice. 



Synon. : Torula Cerevisice (Turpin) ; Cryptococcus Fermentum. 



This plant must not be confounded, as has been done by 



