Rev. M. J. Berkeley on British Fungi. 431 
of filaments spotted with fertile patches. The filaments of the 
interstices are loose and but little complicated, whereas those 
of the fructifying spots are more closely packed, short and 
branched, their tips swelling and gradually giving rise to large 
globose utricles, which contain about four sporidia, and very 
much resembling those of Anthoceros, as represented by Mohl. 
Each sporidium has two membranes, and in the centre is a 
globose nucleus. While in the utricles the sporidia are far 
less coloured than after their escape. -They appear to me to 
be perfected, when free, by the imbibition of the surrounding 
nutriment. The same I believe takes place in Bovista and Ly- 
coperdon, and in many of the dark-coloured Hyphomycetes. 
Prate. XI. fig. 10. a, a filament from fertile patches which produce the 
utricles; 6, a portion of one of the patches at a later stage of growth with 
utricles and sporidia; the sporidia in the utricles are still nearly colourless; 
e, a single sporidium of E. muricatus ; d, ditto of LE. granulatus. All highly 
magnified. 
*212. HE. muricatus, Fr. Syst. Myc. vol. ii. p.59. #. va- 
riegatus, Vitt. 1. c. p. 68. t. 4. fig. 4. Found with the last. 
This differs not only in the more muricated surface, but essen- 
tially in the substance of the coriaceous covering, being va- 
riegated with brown dots, and in the smaller size of the spo- 
ridia. 
*213. Physarum hyalinum, Pers., Fr. Syst. Myc. vol. iii. p. 
139. Lambley, Notts. . 
214. P. utriculare, Chev., Fr.1.c. On wood. King’s Cliffe. 
215. P. lilacinum, Fr. Syst. Myc. vol. iii. p. 140. The only 
specimen I have seen of this elegant species was found by m 
pupil Mr. Charles Wing, on the smooth bark of a fallen oak 
twig in Westhay Wood, King’s Cliffe, Nov. 1838. 
216. P. atrum, Fr. Syst. Myc. vol. iii. p. 147. On fallen 
oak branches, King’s Cliffe. And a much smaller variety on 
cabbage stalks. 
217. Stemonitis pulchella, Bab., Abst. Linn. Trans. 1839. 
Minutissima, hypothallo notabili fusco ; peridiis sparsis eva- 
nidis ; stipite breviusculo, deorsum incrassato, apicem non 
attingente ; capillitio purpurascente ovato-oblongo vix ventri- 
coso ; sporidiis purpureo-fuscis. On Pteris aquilina, Barden 
Hill, Leic. Mr. Churchill Babington, Sept. 1837. 
Extremely minute, not 1 line high, scattered with a trans- 
parent horn-brown hypothallus; peridium extremely evanes- 
cent; stem vanishing a little below the apex ,giving off fila- 
ments on every side ; the free part rather short, smooth, dark, 
slightly incrassated below ; capillitium ovato-oblong, purplish 
brown; sporidia purple brown. 
Tas. XII. fig. 11. a, 8. pulchella, nat size; 6, a single plant, magnified ; 
