of the Lichens and Fungi. 119 



the name of Dacrymyces Urtica, or the margin of the Peziza 

 fusarioides, which is merely the perfect condition of the same 

 fungus. Tubercularia persicina, Dittm. (JEcidiolum exanthema- 

 turn, Ung.) and other analogous productions live intermingled 

 with Uredines and JEcidice when the sori of these entophytes are 

 scattered (e. gr. Uredo Euphorbia, suaveolens, jEcidium Cichora- 

 cearum, Euphorbia;), or they occupy the centre of the area bounded 

 by these sori when they are circular (e. c. Uredo compransor, Mer- 

 curialis, concentrica, JScidium Grossularia, crassum, Convallaria, 

 Paridis, &c.) ; in like manner punctiform productions, which, like 

 JEcidiolum exanthematum, might well represent the spermogoni of 

 the Uredinea, are constantly developed upon the opposite surface 

 of the patch borne by Rcestelia cancellata, Centridium Sorbz, Cy- 

 donia, &c. 



Among the Fungi most decisively proving the thesis now pro- 

 posed, are the Sp/kzrice. S. Laburni, Pers., is a very complete 

 species; its ascophorous perithecia arise like those of a large 

 number of Spharia, around a cytispore with a whitish cirrhus, 

 mixed, in addition, on the same stroma with conceptacles lined 

 by a basidigerous hymenium, which would be referable to the 

 genus Sporocadus or one of its analogues. Thus Spharia Laburni 

 possesses three kinds of reproductive organs, viz. normal endo- 

 thecal spores, acrogenous spores very like the fruit, those of the 

 Sporocadus, and lastly other spores equally acrogenous, but very 

 different and exceedingly slender, namely those of the Cytispora. 

 In Sphceria hypoxylon and other Xylarice, I have as yet seen only 

 two kinds of spores, namely the black endogenous spores which 

 are known to belong to them, and in the second place the white 

 seminules which cover the young branches of the stroma with \ 

 fine dust. These seminules arise singly from a naked hymenium, 

 clothed with short, straight basidia. Dothidea ribesia is more 

 complete ; on the upper face of its pulviniform stroma it produces 

 white seminules like those of the Xylarice, and in the substance 

 of its parenchyma little cavities become excavated here and there, 

 producing upon their walls acrogenous corpuscles resembling the 

 seminules of the Septorice. Finally, it is known that it also 

 possesses an innumerable quantity of superficial conceptacles 

 filled with eight- spored thecce. 



The multiplicity of reproductive organs in all these Fungi 

 requires the invention of a few new words to distinguish them 

 from each other. The term spores remaining attached to the 

 most perfect, those developed in the thecce, without relation of 

 continuity with the parent plant ; we may apply the name of 

 stylosjjores to those which originate naked, that is to say, from 

 linear stalk -like cells analogous to the basidia of the Agaricinea. 

 Then the more delicate seminules, the generation of which is also 



