ona 
Rey. M. J. Berkeley on British Fungi. 433 
tusis, subtruncatis. On an elm twig. Grace Dieu, Leic. 
Mr. Churchill Babington. Very near to the foreign S. /ate- 
ritium and S. cinnabarinum, with which it forms a distinct 
group. It is less fasciculate than either, and is of a brighter 
colour. Receptacle composed of subdichotomous filaments, 
crowned with abortive sporidia, which are about one-third 
shorter than those which are perfect. Perfect sporidia ob- 
long, obtuse, almost truncate. 
Tas. XII. fig. 14. a, S. aurantiacum, nat. size; b, ditto, magnified; c, 
filaments of the receptacle which arise from the stem, with abortive spores ; 
d, sporidia, both highly magnified. 
224. Phycomyces nitens, Kze., Myc. heft 2. p.113. t.2. f. 9. 
Byssus olivaceus, Winch, Fl. Northumb. p. 121. in Trans. of 
Newcastle Nat. Hist. Soc. 1831. On the walls of an oil-cel- 
lar. Newcastle. Mr. Winch. I have been enabled to deter- 
mine the above synonym by the assistance of Dr. Johnston, 
in whose collection, which has been kindly submitted to my 
inspection, there is a specimen. 
225. Mucor succosus, n.s. Minutissimus; hyphasmate 
Spongioso; sporangiis minutissimis globosis flavis, dein oli- 
vaceis ; columella minuté. On the cut surface of stumps of 
Aucuba Japonica, which had been killed by frost. May, 
1838. Apethorpe, Norths. Forming small pulvinate orange- 
ochre spongy masses, which, while there is an abundance of 
nutriment, do not fructify; but when gathered, produce a forest 
of exceedingly minute globose yellow sporangia, not indeed 
visible to the naked eye, which at length become olive. Co- 
lumella very small, and little more than a slight swelling of 
the top of the stem. 
Tas. XII. fig. 15. a, M, succosus, slightly magnified ; 6, threads from the 
barren plant; ce, d, fertile flocci; e, sporidia; f, granules and an abortive 
sporangium from the barren plant, more or less highly magnified. 
226. Sporocybe nigrella, n.s. Minutissima, nigra, stipite 
simplice, tenuissimo, articulato; sporidiis globosis glabris. 
On dead leaves of grass. King’s Cliffe, Leicestershire. Mr. 
Churchill Babington. Extremely minute, not one-fourth of 
a line high, dark black. Stem slender, with 4—5 articulations ; 
heads globose; sporidia globose, smooth, with a globose nu- 
cleus. The whole plant is dark, so that it requires a good 
light to see the articulations of the stem, which are, however, 
very evident. It is very near to Periconia atra, Corda; but the 
stem of that species is figured as closely annulated, a structure 
quite at variance with that of the present species ; and the spo- 
ridia appear to be less transparent. I suspect that under a 
very superior microscope they would appear very minutely 
scabrous, but I am not certain whether this is the case; and 
Ann. & Mag. N. Hist. Vol. vi. 2F 
