16 ON THE FUNGI OF THE ARCTIC EXPEDITION. 



I have given a description, because it departs slightly from Vit- 

 tadini's species, but not sufficiently to justify proposing a new 

 species. It may be considered as var. arcticum, distinguished by 

 the warty apex, the plant of Vittadini being uniformly clothed 



with minute prickles. 



There is a species apparently distinct, from Hayes Sound, with 

 clay-coloured spores ; but the specimens are too old and broken to 

 be safely diagnosed. 



16. TiticnoBASis Pybolje, B. OutL, p. 382. — Uredo Pyrolae, 

 Grev. Fl. Ed. p. 440. 



Pnoven, on leaves of Pyrola. Just like specimens from 

 Scotland. The spores are not subglobose in any condition of the 

 species, but decidedly obovate, '0009-00 1 inch long, and minutely 

 echinulate. 



17. Stilbum arctictjm, B. 



Microscopicum, melleum, hyalinum ; stipite cylindrico e floccis rectis 



apice sporiferis compacto. 



(H 



Hart). Spores oblong, truncate at either end, '00013 inch long. 



18. Peziza stercorea, P. Obs. ii. p. 89 ; Fr. Syst. Myc ii. 

 p. 87 ; Cooke, Micr. fig. 147. 



Discovery Bay, July 29, 1876 (H. C. Hart), on dung of Musk- 

 ox. I do not find any stellate or peltate bristles. 



19. Ascobolus FTJREUBACEUS, P. Obs. i. t. 4. f. 3-6. 

 On Musk-ox dung with Peziza stercorea. 



20. TJrstula Hartii, B. 



Cupula cyathiformi, extus cum stipite spadiceo velutina; margine in- 

 flexo ; bymenio pallidiore ; sporidiis ellipticis hinucleatis. 



On moss, Upernavik, July 1875 (H. C. Hart). Lat. 82° 29 f N., 

 July 1876 (Capt. Feilden). Cup 3 lines broad, stem 2 lines high ; 

 sporidia uniseriate, '0006 incb long, 0003 wide. 



Clearly allied to TJ. craterium, Er. (Cenangium craterium), 

 which was found in Arctic America by Drummond, though com- 

 paratively so diminutive. The sporidia in the original species are 

 at least '002 inch long. I have, however, one or possibly two di- 

 stinct species. The habit of U. Hartii is exactly that of Peziza 

 ciborium, FL Dan. t. 1078. f. 1. 



21. Chjetomittm glabrtjm, B. Sf Br. Ann. Nat. Hist. May 1873, 

 p. 349, tab. x. fig. 15. 



