Rev. M. J. Berkeley on British Fungi 259 



branched obscurely jointed filaments (thallus), the branches 

 of which generally form an acute angle with the stem. The 

 ramification of these is very peculiar, the stem and main 

 shaft of each subdivision being almost constantly abbreviated 

 and surmounted by the branchlet given off near its apex; this 

 again is often abbreviated and another branchlet given off, 

 which again surpasses it, and occasionally the same circum- 

 stance takes place a third time. The apices are clavate and co- 

 lourless ; the rest of the filaments, when viewed by transmitted 

 light, brown, even, and pellucid ; a few globose conidia are 

 usually attached to them. The peridium is thin, black to the 

 naked eye, of an olive brown under the microscope, filled with 

 a mass of linear extremely transparent asci, each containing a 

 single row of broadly elliptic chocolate sporidia. These have 

 a paler border ; sometimes the colour entirely vanishes either 

 from age or abortion, and there is only a minute globose nu- 

 cleus, or more probably a vesicle of air, in the centre ; occa- 

 sionally they become so transparent that the globular bodies 

 alone are visible. After the peridia burst, several are fre- 

 quently collected together into an irregular linear body, which 

 consists principally of the conglomerated sporidia. 



Tab. VII. fig. 8. a, Ascotricha chartarum, nat. size; b, peridia, a portion 

 of the filaments only being represented, that their ramification may be more 

 easily seen ; c, peridium, artificially ruptured ; d, portion of thallus, with 

 conidia; e, asci ; /, sporidia : all more or less magnified. 



117. Isaria arachnophila, Ditm., 1. c. t. 55. On a dead 

 spider at the foot of a sallow, Collyweston, Norths. The spo- 

 ridia are distinctly arranged in moniliform threads exactly as 

 in Aspergillus glaucus or albus, of one of which species, or 

 possibly of some Penicillium, I strongly suspect it to be a 

 state. My specimen exactly accords with Ditmar's figure. 



118. Isaria int?*icata, Fr., Syst. Myc. vol. hi. p. 278. On 

 various dead Fungi, as Agaricus mutabilis, &c, Apethorpe, 

 King's Cliffe. Some specimens belonged to the form described 

 by Fries, others to Isaria subsimplex of Schumacher. 



*119. Anthina fiammea, Fr., Syst. Myc. vol. hi. p. 283. 

 Amongst leaves of oak, beech, hazel, bilberry, &c, Kingfs 

 Cliffe, Norths. ; Sherwood Forest, Notts. 



1 20. Syzygites megalocarpos, Ehr . Verhandl. Naturf. Freund. 



s 2 



