334 PROTOCOCCEJE. 



Hob. On walls, trees, &c., Cheshunt : A. H. H. Appin : 

 Captain Carmichael. 



Although this species is somewhat peculiar in its deve- 

 lopement, not the slightest necessity exists for its removal 

 from the many-cysted species of the genus Hcematococcus. It 

 is impossible to make too rigid an examination and analysis 

 of plants of this order, but the utmost care is required in 

 forming a right estimate of the value of the differences dis- 

 closed by a rigorous examination, for if every small difference 

 be too highly regarded, we shall soon have genera as nu- 

 merous as species. The figure given in this work is chiefly 

 taken from that of Meneghini's " Monographia." 



18. KEMATOCOCCUS MICROSPORUS Hass. 



Plate LXXVI. Fig. 8. 



Char. Cells angular, adherent to each other, and each occu- 

 pied with usually four minute slightly oval green granules. 



Hab. Uckfield Sandrocks, Sussex : Mr. Jenner. 



This is a distinct enough little species. I have only seen 

 the specimens of Mr. Jenner, who sent it me as " Palmella 

 protuberans" The granules are always enclosed in cells, 

 which are strongly adherent to each other, and never sepa- 

 rate. 



19. H^MATOCOCCUS MINUTISSIMUS HttSS. 



Plate LXXVI. Fig. 9. 



Char. Globules spherical. Granules excessively minute t 

 green. 



Hab. Mixed up with H. furfuraceus. Ireland : Mr. 

 Moore. 



The granules in this species are even smaller than those of 

 Hcem. microsporus, and are much more numerous in each 

 cell than in that species. 



