86 
SPORE DIFFUSION IN PITALLOIDEI. 
superficial resemblance to the flowers of some Compositas may be 
recognized, the unchanged, often brownish centre, representing the 
disc, and the radiate marginal part the rays. This partial mimi- 
cry may possibly be accidental and without advantage, but it is 
worth noting that the great majority of those species which are 
markedly revolute, or what I may call flower-like, grow on dung 
where flies are abundant, while of those which possess neither of 
these characters well marked, the majority do not grow on dung as 
a rule.” Is not this merely fanciful ? Although the flies abound 
on the dung, are they to be seen sucking the black juice from the 
pileus, as in the Phalloidei, and if so, at what period of the day ? 
since we have never been fortunate enough to catch them at it ; 
so that we fail to appreciate the conclusion, that “ considering all 
these facts in relation to the Coprini, the assumption is certainly 
warranted that they exhibit adaptations for the purpose of having 
their spores transported by insects.” On this point we have an 
open mind, but although we have watched, often and long, we can- 
not confirm insect visitation to the deliquescent gills of Coprinus. 
NEW BRITISH FUNGI. 
( Continued from p. 41.) 
Hypocrea (Broomella; leptogicola, Cke. fy Mass. 
Stroma orbicular, convex, pruinose, flesh-coloured, become hard 
when dry (-|-1 m.m. diam.), parasitic on thallus of Leptogium , 
ostiola obsolete, asci clavato-cylindrical. Sporidia fusiform, acute 
at the ends, 5-septate, hyaline (37-40 x 6 p). 
On Leptogium , growing upon Robinia. Kew. 
Stuartella Carlylei, Cke. Sf Mass. 
Perithecia gregarious, large, carbonaceous, globose, superficial 
(J m.m. diam.), black, tuberculate, as in Bertia vioriformis, pierced 
at the apex, not papillate; asci clavately cylindrical, sporidia 
lanceolate, five septate, not constricted, brown, 40-50 x 8-10 p. 
On naked wood. Carlisle. (Dr. Carlyle.) 
Mollisia dactyligluma, Coolce. 
Cups soft, fleshy, concave, then flattened, m.m., white, 
cinereous, or livid, paler at margin, sessile, smooth. Asci 
cylindrical, sporidia cylindrical, rounded at the ends, nearly 
straight, hyaline, 10 x 1^ p. 
On glumes of Dactylis glomerata. Lynn. 
Lachnella stigmella, Cooke. 
Cups shortly stipitate, white, or pale flesh-colour, clad with thin 
flexuous hairs, one-tenth m.m. diam,, disc of the same colour; asci 
cylindrical. Sporidia b-10 x 1 p, paraphyses fusiform. 
On rushes. Norfolk. 
