STAUROCARPUS. 179 



5. SXAUROCARrUS GRACILIS Hass. 



Plate XLIX. Fig. 1. 



Char. Filaments more slender than those of St. virescens, and 

 usually of a green colour. Cells many times longer than 

 broad. Sporangia cruciform. 



St. gracilis Hassall, in Annals of Nat. Hist. vol. xii. pi. vii. 

 fig. 5. 



Hah. Penzance : Mr. RaJfs. Waterdown Forest, Broad- 

 water Forest, Fisher's Castle, Crowborough Warren : 

 Mr. Jenner. High Beecb, Hertford Heath, "Wormley, 

 West End, and Wanstead Flats, Essex : A. II. II. 



This is an abundant species, and very distinct from any of 

 the others. It was found by Mr. Ealfs, Mr. Jenner, and 

 myself, within a few daj^s of each other. 



6. Staurocarpus gracillimus Ilass. 



Plate XLIX. Fig. 2. 



Char. Filaments more slender than those of St. gracilis, and 

 usually of a green colour. Cells very many times as long 

 as broad. Sporangia cruciform, arid about one half the size 

 of those of St. virescens. 



St. gracillimus Hassall, in Annals of Nat. Hist. vol. xii. 

 p. 185. pL 7. fig. 6. 



Hah. Hertford Heath and High Beech : A. H. H. Rack- 

 ham Bogs, Parham Park, near Storrington, and Ash- 

 down Forests : Mr. Jenner. 



This species I have myself met Avith several times, but did 

 not at first recognize its distinctness, of which, however, I 

 now entertain no doubt : and it was only on the receipt of a 

 beautiful sketch from IMr. Jenner, accompanied by remarks, 

 that I examined thoroughly into the matter, and satisfied 

 myself of its entire distinctness. 



N 2 



