75 



On various decaying fungi and on leaves and rubbish near where 

 fungi have decayed. Pennsylvania (Michener <fe Everhart), Plainfield, 

 N. J. (Meschutt). 



Dr. 0. B. Plowright, in his valuable monograph of this genus in 

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

 •one with larger, pointed perithecia, as figured by Greville and by Al- 

 bertini & Schweinitz ; the other, with smaller and more obtuse perithe- 

 cia. The sporidia vary 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 J-1 

 cm. across. 



H. ochrkcens, (Pers.) 



SphtsHa ochracea, Pers. Syn. p. 18. 



Cyypiospkaria auraniia Grev. Scot. Ct. 1^1. ta^. 78. 



Hypomyces armeniacus, Tul. Ann, Sc. Nat, IV, Ser, torn, XIII, p 12. 



HypotAyces ochracias, Tul, Sel, Carp, III. p. 41, Plowr, Grev, XI, p, 45, 



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

 thick, obtuse, exserted ostiolum. Subiculum {Verticillium agaricin- 

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

 Asci cylindrical, 25-30 x 6 J n, containing eight oblong-lanceolate, uni- 

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

 end. 



On decaying Agaricus, Pennsylvania (Michener). 



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

 XI, p. 6, tab. 147. 



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

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

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

 ish-brown, subhyaline, 150 pi high by 70-90 /« broad. Asci broadly 

 ovate, abruptly attenuated below, 40-50 x 18-20 //, containing 4-6 

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

 subhyaline, then dirty-yellow, 25-35 x 5 // sporidia- 



Parasitic on Nyctalis, Carolina (Ravenel), 



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

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

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

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

 luted bases of the conidia-bearing hyphse 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." 



