lU 



SPORIDIA OF FUNGI. 



\_April, 



gatedj somewhat acuminate sporidiaj which sometimes protrude 

 at the top, imparting a spiculose appearance to them. 



A third instance is that of Spharia acuta, the sporidia of which 

 are dehneated as " linear and 4-5-septate/^ whereas they are 

 very minute, oblong, and simple (not septate). Probably Dr. G. 

 mistook the sporidia of Sphceria coniformis, which often occurs 

 on Nettle-stems in company with S. acuta, for those of the latter 

 plant. 



In describing Spathularia flavida, — the little, yellow, battle- 

 dore-shaped Fungus found in Pine groves, — Dr, Greville states 

 that he has not seen the sporidia of that plant. On examination, 

 I make them to be very similar to those of Rhytisma acerinum, 

 but not quite so long, and often acuminate at one extremity only. 

 Another Fungus with similar sporidia, is Cenangium quercinum, 

 which is common on Oak-twigs. In Hooker's 'English Flora ^ 

 the sporidia are not described, but I find them to be long, fili- 

 form, and somewhat acuminate. 



In all these forms of elongated sporidia, one extremity is 

 sometimes curved, Avhich probably arises from the sporidium 

 having been situated at the apex of the ascus. 



Fig. 1- 



Fig. 3. 



o ^ 



^qO 



Fifi-. 4. 



Fig. 5. 



Fig. 1. Asci and sporidia of ^%^m«a aceriimm. Fig. 2. Asci and 

 sporidia of Sphceria typTiina. Fig. 3. Sporidia of Sphceria acuta. 

 Fig. 4. Asci and sporidia of Spathularia flavida. Fig. 5. Asci and 

 sporidia of Cerangimn quercinum. 



Mossburnford, Jedburgh, N,B. 



