75 



various decaying Ringi and on leaves and rubbish near where 

 fungi have decayed. Pennsylvania (MichenerA Ever hart), Plainfield, 

 N. J. (Meschutt). 



Dr. C. B. Plowright, in his valuable monograph of tliis genus in 

 Grevillea, Vol XI, says: "There are two varieties of this species, 

 one with larger, pointed perithecia, as figured by Greville and by Ah 

 Itertini cv Schweinitz; the other, with smaller and more obtuse perithe- 

 oia. The sporidia van a good deal in size, as does the color of the 

 subiculum, which is sometimes nearly absent. Sometimes it is almost 

 white, but mostly rose colored, with a whitish margin." The specimens 

 from Mr Meschutt were on decaying leaves, forming little patches |-1 

 cm. across. 



H. ochraceus, (Pers.) 



Sphezria ochracea, Pers. Syn. p. is 



Cryptospharia aurantia Grev. Scot. Cr. Pi. tab. 78. 



Uypomyces armeniacus, Tul. Ann. Sc. Nat. IV, Ser. torn. 2i.Hl, p 12. 



Hypomyces ochraceus, Tul. Sel. Carp. Ill, p. 41, Plover. Grev. XI, p. 45. 



Perithecia crowded, subglobose, yellowish, immersed, with a short, 

 thick, obtuse, exserted ostiolum. Subiculum (Verticillium agaricin* 

 um, Cda.) at first white, then straw-colored, ochraceous and yellow, 

 Asei cylindrical, 25-30x6^ /i, containing eight oblong-lanceolate, uni- 

 septate, constricted, 35 x6| fi sporidia, which are mucronate at each 

 end. 



On decaying Agaricua, Pennsylvania (Michener). 



H. asterophorus, Tul. Sel. Carp. Ill, p. 55 (partly), Plowr. Grev, 

 XI, p. 6, tab. 147. 



Perithecia originating in an effused, byssoid stroma, in which they 

 are thickly strewn, ovoid or sphaeroid, narrowed above into a more or 

 less elongated neck, with an acute, pervious, ciliate ostiolum, pale yellow- 

 ish-brown, subhyaline, 150 fi high by 70-90 /< broad. Asci broadly 

 ovate, abruptly attenuated below. 40-50x18-20 /i, containing 4-6 

 narrowly lanceolate, slightly curved, mucronate at each end. uniseptate, 

 subhyaline, then dirty-yellow, 25-35x5 fi sporidia. 



Parasitic on Nyctalis, Carolina (Ravenel), 



Dr. Plowright, in his monograph already cited, says: "The perithe 

 cia of this species of Uypomyces differ considerably from those of the 

 other members of the genus. They are formed of very large polygonal 

 cells and originate from the intertwining of the dilated and convo- 

 luted bases of the conidia-bearing hypha? that compose the stroma. 

 These (the perithecia) are most frequently found upon the inside of the 

 stem of the Nyctalis. but they are by no means of common occurrence*" 



