VIl] 



PERONOSPORITES. 



217 



in the act of escaping from a lateral pore. This interpretation 

 strikes one as lacking in scientific caution. 



The sporangia of Hyphochytrium mfestans\ as figured by 

 Fischer in Rabenhorst's work bear a close resemblance to those 

 of the fossil. It would seem very probable that Renault's 

 species may be reasonably referred to the Chytridineae, as 

 he proposes. 



Fig. 43. 1. Oochytrium Lepldodendri, Ken. (After Kenault.) 2. Polyporus 

 vapor arius Fr. var. succinea. (After Conwentz.) 3. Cladosporites bipar- 

 titus Fel. (After Felix.) 4. Haplographites catenigerFel. (After Felix.) 



Peronosporites antiquarius W. Smith. Fig. 41, E. 



In an address to the Geologists' Association delivered by 

 Mr Carruthers in 1876 a brief reference, accompanied by a 

 small-scale drawing, is made to the discovery of a fungus in the 

 scalariform tracheids of a Lepidodendron from the English 

 Coal-Measuresl In the following year Worthington Smith 

 published a fuller accoant of the fungus, and proposed for 

 it the above name", which he chose on the ground of a 

 close similarity between the mycelium and reproductive 

 organs of the fossil form and recent members of the 



^ Fischer in Rabenhorst, vol. i. (1)2) p. 144. 



2 Carruthers (76) p. 22, fig. 1. 



3 Smith, W. G. (77) p. 499. 



