76 Messrs. Berkeley and Broome on British Hijpogaous Fungi. 



cavities of the hymenium are larger ; it is almost without scent, 

 and there is not the slightest tendency to become black in dry- 

 ing. There is little difference in the form or size of the spores. 



6. Octaviana asterosperma, Vitt. ! Mon. Tub. p. 17; TulJ 

 Ann. d. Sc. Nat. I c. p. 376 ; Corda, Ic. Fasc. 6. tab. 7. fig. 64. 

 (ined.) Leigh Wood near Bristol ; Chudleigh, Devon. 



This very interesting addition to our flora has at present occur- 

 red very sparingly. The smell, as observed at the latter locality, 

 was just like the pungent odour of some Ichneumon or small bee. 



It is probable that Hydnangium Stephensii really belongs to 

 this genus, and that H. carotcecolor is a true Hydnangium. The 

 structure of the trama is very different, in the former resembling 

 that of an Agaric, in the latter that of a Bussula. 



In Hydn. carotcecolor the colouring matter consists of oil glo- 

 bules. It is probable that it is from the gradual escape of these 

 from the dry plant, that the paper to which they are attached, or 

 with which they chance to be in contact, is stained with lemon- 

 colour. Externally it is of a more decided yellow, free from any 

 tinge of orange and paler than the fructifying mass. Each spo- 

 rophore in this species usually bears four spores ; in H. Stephensii 

 one only. 



*Rhizopogon ruhescens, Tul. ! Fung. Hyp. in Giorn. Bot. Ital. 

 An . 1°. Melanogaster Berkeleianus, Broome ! Ann. Nat. Hist, 

 vol. xv. p. 41. 



This species occurred last year abundantly at Chudleigh, and 

 appears to be certainly the same with the species of Tulasne. 

 Hysteromyces graveolens,Vitt. } of which authentic specimens have 

 been kindly communicated, is probably also the same species, as 

 is also the case with Rhizopogon luteolus and R. virens from Italy, 

 Hymenangium virens, Kl., Rhizopogon luteolus,CoY&&, and perhaps 

 with Rhiz. luteolus, Fr. 



This species grows gregariously in sandy fir-woods. When 

 young it is almost transparent, and resembles young Phallus ca- 

 ninus, being of a pure white and furnished with white roots which 

 proceed from a mycelium which spreads sometimes an inch or two ; 

 in this state it turns pink on being touched ; in a more advanced 

 stage it is yellow, but even then it has here and there a pink 

 tinge. The smell is very much like that of Melanogaster ambi- 

 guus when old, but when young it has an acid smell like that of 

 sour ham. It rapidly decays into a brown fetid pulpy mass. 



II. Species SporidiiferjE. 



7. Genea papillosa, Vitt. /. c. p. 28. Near Chudleigh, Aspley 

 Beds, and Bristol. 



This species, which appears to be but little known and very 

 rare in Italy, — for there is no authentic specimen in any of the 



