w 



52 FUNGI COLLECTED DURING THE i CHALLENGER * EXPEDITION, 



This curious species is so like Leveille's genus Phylacia that I 

 am inclined to think that either Phylacia, when perfect, has asci 

 which in some cases are easily absorbed, or it is merely a stylo- 

 sporous state of Hypoxylon. 



73. H. co no pus, Fr. Mont. Cuba, p. 341. 

 On dead wood. 



74. H. (Glebosi) Moselei, B. Orbiculare erumpens leviter depres- 

 sum marginatum, primum cortice velatum, basi margine tenui cir- 

 cumdatum ; peritheciis oblongis ; ostiolis papillaeformibus deciduis ; 

 strato exteriore rigido. 



On dead sticks. 



About J inch in diameter. 



Nearly allied to Sphceria subaffixa, Sehwein., but of a much 

 harder substance. Unfortunately I find perfect fruit in neither. 



Tristan d'Acunha. 



75. Agaricus (Pholiota) phylicigena, B. Pileo convexo carnoso 

 areolato fulvo, primum lsevissimo ; stipite crasso sursum attenuato, 

 deorsum incrassato infra annulum crassum mobilem trans versim floc- 

 culoso ; lam ell is leviter decurrentibus argillaceis. 



On trunks of Phylica arborea, Oct. 17, 18/3. 



Pileus 3 inches or more across, convex, at first very smooth and even, 

 at length repeatedly areolate with a depressed wart in each division, 

 margin turned up; stem excentric, attenuated upwards, thick and 

 swollen below, solid, about 2 inches high, 1 J inch or more thick in 

 the centre ; ring thick, very soon detached, and movable ; gills mo- 

 derately broad, crowded, clay-coloured, decunent, edge pale ; spores 

 oblong oblique, about '0003 inch long, but variable in size. 



Very nearly allied to A. capistratus, Cooke, but differs in several 

 points, especially in the incrassated stem. There is a misprint 

 iu Cocke's description of that species, the figure being quite 

 correct. 



76. Hypoxylon placent^forme, B. 8f Curt. Journ. Linn. Soc. x. 

 p. 383. 



On dead Phylica arborea, Oct. 1/, 18/3. 



Marion Isle. 



77. Agaricus (Naucoria) glebarum, B. Fl. Ant. tab. 162. fig. 3. 

 On Azorella, Dec. 26, 1873.' 



* 



Spores '0003 inch long. 



There are also white, flexuous, filiform threads which look lik* 





