192 THE FUNGI OF THE BRISTOL DISTllICT. 



elongated, straight or flexuous, erect or curved above, brownish purple ; 

 spores globose, very pale, viinutely verruculose, 5-7 u diameter. Rost. 

 MoTu, p. 236. 



Distinguished from G. argillacea, Pers., the only other British species 

 without a calyculus ( = the entire cup-like basal portion of sporangium), 

 by the long slender stem, and small globose sporangium. Gregarious, 

 2-5-3 mm. high. 



On dead Sphagnum, etc., in a stove, Claremont, Clevedon (Mr. Baker). 



* Trichia contorta, Rost. No. ) t • i att i -< ooi 



13ol ante Plate I I Leigh Woods, 1881. 



iJ£?A ante. I'late i., >Yatton, Dec, 1888. 



1381. Hemiarcyria Biicknalli, ") o, i , ^oo^k 



Massec. Plate II., fig. 5. j Stapleton, 1880. 



" Sporangia sessile on a broad or narrow base, seated on a very thin 

 hypothallus, circular, reniform, or subangular from mutual pressure, wall 

 very thin, gilvo-ochraceous, soon disappearing ; mass of spores orange ; 

 capillitium well developed, threads combined to form a wide-meshed 

 network, with many free ends, 4-5 fi thick, walls with annular ridges 

 mostly crowded, but here and there scattered, and sometimes passing 

 into a spiral, the ridges with numerous thin, straight spines 3-4 /jl long, 

 the free tips irregularly swollen and bristling with spines, as are also cer- 

 tain interstitial swollen portions ; spores globose, pale yellow, minutely 

 warted, 7-9 jj, diameter. 



Generally crowded, about -5 mm. diameter, but extending to 1'5 mm. 

 when isolated and elongated. Most closely allied to H. Wigandl, Rost., 

 but at once distinguished by the larger size of the sporangia, the mark- 

 ings on the elaters being in the form of rings, and not spirals, and in 

 being furnished with numerous spines.'' — Grevillea, vol. xviii., j)- 27. 



This occurred on the old beech stumps in Stapleton Park, in the year 

 1880, in company with Trichia scahra, for which, in consequence of its 

 great external resemblance, it was mistaken, and remained undetected 

 until last year, when, having occasion to examine microscopically the 

 species of Trichia in my herbarium, the great difference in the sculpturing 

 of the elaters in some of the specimens under the name of T. scahra, at 

 once made it apparent that this belonged not only to another species, 

 but to a different genus. Being unable to find any description to which 

 it would correspond, I submitted my specimens to my friend Mr. George 

 Massee, who pronounced it to be different from any species yet described. 



1382. Oligonema nitens, Rost. Abbot's Leigh, June, 1889. 

 Sporangia densely crowded, often several layers superposed, sessile on 



