HELOTIUM. 155 



which is ferruginous ; sporidia very variable in size 

 and shape. 



Nearly allied to H. calycidus. 



Name Ferrugo, iron rust ; from the colour. 



Houghton ! (Rev. M. J. Berkeley). 



(/3) On herbaceous stems and roots. 

 2. Helotium graminium (nov. sp.). 



Stipitate ; cup plane or convex, glabrous, pallid- 

 ochraceous ; stem short, rather stout, often slightly 

 attenuated in the centre, expanding into the base of the 

 cup ; asci subclavate ; sporidia 8, elliptic, with one or 

 nvo guttulse, 8 11 X 4 5/j. ; paraphyses slenderly fili- 

 form. 



On grass. Spring. 



Cups J to 1^ of a line broad, about the same high : 

 margin obtuse. 



Name Gram 'meus, of or belonging to grass ; from its 

 habitat. 



King's Lynn ! (Mr. C. B. Plowright). 



3. Hdotium politum (nov. sp.). 



Substipitate, plane or slightly concave, glabrous, 

 white ; margin even, obtuse ; the short stem gradually 

 enlarged from the base upwards into the cup ; asci 

 cylindraceo-clavate ; sporidia 8, elliptic, ends nearly 

 pointed, 10 13 X 4 D/*. 



On roots of some small plant under the surface of the 

 soil in a plantation. November. 



Cup i to f of a line broad, the short stem tapering 

 downwards to a point. When moist, shining. 



Name Politus, polished. 



Shelton Rough, near Shrewsbury ! 



(7) On catkins. 

 4. Helotium alniellum. (N}^!.). 



Cup shortly stipitate, plane, white or pallid- white ; 

 stem slender, short or very short; asci cylindraceo- 



