BRITISH FUNGI. 103 



form, paraphyses urn-shaped above, sometimes uniseptate, inter- 

 mixed with short flood. — B. $ Br. Ann. N. II., 13 ( J1, t. 8,/. 10. 



On elm. Langridge. Mar. 



Caps smaller when on bark; sporidia -0005 in. by '0001 in. 



[Plate 22, fig, 2. a, paraphysis ; b, ascus with sporidia ; c, 

 sporidia ; (/, tip of paraphysis. — B. $• Br.~\ 

 Kiiyi-a nonius. Boudier. 



Cnps very minute, scar^' conspicuous to the naked eye, waxy, 

 marginate, sessile; disc plane; asci prominent; when dry margin 

 indexed, rounded; parapliyses rare, short, septate; asci minute but 

 broad, polysporous, dehiscing with a convex operculum ; sporidia 

 very minute, hyaline. — Boudier, Mem. Asc, pp. 47. 

 Rhyparobius dubius. Bond. 



Scattered, just conspicuous under a lens, pale grey or tawny, 

 pellucid, rounded ; margin not distinct ; asci oblong or oblong- 

 ovate ; sporidia 128 (?), oblong-ovate, minute, hyaline. — Bond. 

 Ann. Sci. Nat. (1869) x., p. 240. B. $ Br. Ann. N. H. 1392. 



On rabbit's dung. Bathford. 



Rhyparobius Cookei. Bond. ( Grevillea, i., p. 132 J B. $ Br. Ann. 



N. H. 1393. 

 On dog's dung. Batheaston. 



Rhyparobius argenteus. B. § Br. 



Very minute, silvery white, ciliated with soft hairs ; asci short ; 

 sporidiiferous cysts elliptic, seated towards the apex ; sporidia 

 fusiform ; paraphyses furcate. — B. fy Br. Ann. N. H., 1394, t. 9, 



/• 11. 



On rabbit's dung ; for the most part attached to filaments of 

 Mucor. 



Cups -004 in. across ; asci -004 in. long; sporidia normally 64 

 in each cyst -0007 in. long, -00025 -'0003 in. wide. Scarcely visible 

 to the naked eye ; asci opening with a little lid, which splits verti- 

 cally. Comes near to R. felinus, B , but has soft hairs, and is of a 

 pure white ; tips of paraphyses slightly enlarged. 



[Plate 22, fig. 3 — a, asci with cyst ; b, paraphysis ; c sporidia. — 

 B. £J3r.] 



Rhyparobius woolhopensis. Benny. 



Minute, scattered, at first jmre white, then dingy ; cups with a 

 thick stem-like base, which is tuberculate, covered above with close- 

 st hairs which fringe the margin, at length expanding, the hairs 

 disappearing with age; substance of base vesicular; paraphyses 

 simple ; asci clavate ; sporidia fusiform (normally 04). — B. ^ Br. 

 Ann. N. II. , No. 1395, t. 9,/. 12. 



On bird's dung, mixed with filaments of Mucor. 



Cups -^ line (-041 in.) high; sporidia *0007 in. long ; cells of 

 base often -0015--0018 in. long. 



[Plate 22, fig. 4 — a, ascus with cyst; b, sporidia. — B. ty Br.~\ 

 Bulgaria purpurea. Fckl. 



Receptacles as in Bulgaria sarcoides, but larger and more robust ; 



