460 Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 



Forming a thin olive-black stratum, consisting of generally 

 quadriarticulate oblong spores growing four together and per- 

 fectly connate, each crowned with an articulate seta as long as 

 itself. 



This most curious fungus has occurred once only. It is a 

 compound Sporidesmium. The quadriaristate bodies may either 

 be regarded as made up of four spores or as spores formed of 

 four parallel rows of cells, each row being terminated by a bristle. 

 They remind one strongly of the achsenium of some Composite 

 plant. 



Plate XI. fig. 6. Young and mature spores highly magnified. 



457*. Echinobotryum atrum, Cord. Ic. Fasc. 2. fig. 6. Parasitic 

 on some species of Pachnocybe, Milton, Mr. Henderson ; King's 

 Cliffe. 



The spores have the appearance of fascicles of minute peri- 

 thecia. 



458. Dictyosporium elegans, Corda in Weitenweber Beit. no. 1. 

 p. 87 ; Cord. Ic. Fasc. 2. fig. 29. On barked oak-trees, Brock- 

 ley Combe, Som., C. E. Broome, Feb. 1845. 



Allied to Sporidesmium. A very curious and distinct produc- 

 tion, of which we have specimens from the author. 



459. Coniothecium effusum, Cord. Ic. Fasc. 1. fig. 21. Com- 

 mon on fence rails. 



Possibly the barren state of some well-known fungus. This is 

 probably Lepraria nigra, Eng. Bot. 



460. C. Amentacearum, Cord. Ic. Fasc. 1. fig. 26. On dead 

 willow-twigs : extremely common. 



461. C. betulinum, Cord. /. c. fig. 25. On dead birch-twigs, 

 King's Cliffe. 



462. Torula Sporendonema, Berk. & Br. Sporendonema Casei, 

 Desm. Ann. d. Sc. Nat. vol. xi. p. 246 ; Mougeot & Nestler, 

 no. 998. 



We have lately met at King's ClifFe with well- developed spe- 

 cimens of this species, which is precisely the plant of Mougeot 

 and Nestler. It has exactly the structure of Torula, and cer- 

 tainly has not the spores contained within a tube. Corda's To- 

 rula Casei appears to be very different. A variety occurs on rats' 

 dung. The rats had probably been robbing a cheese infested 

 with the mould. The specimens came from Mr. Henderson. 



463. T. pulvillus, n. s. Csespitibus pulvinaribus ; floccis com- 

 pacts rectis ramosis ; articulis oblongis leviter constrictis. On 

 dead twigs of oak bursting in little tufts through the bark, Ape- 

 thorpe, March 1841. 



Tufts cushion-shaped, half a line broad, compact, black ; flocci 

 straight, slightly branched, often suddenly diminishing in size 



