75 

 On various decaying funo-i and on leaves and rubbish near where 



v (_ 



fungi have decayed. Pennsylvania (Miehener <t Everhart), Plainfield. 

 X. J. (Mesclmtt). 



Dr. C. B. Plowright. in his valuable monograph of this genus in 

 Grevillea, VoL XL 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. 7 ' The specimens 

 from Mr Mesclmtt were on decaying leaves, forming little patches \-\ 

 cm. across. 



H. ochrcieeus, (Pers.) 



ia ochract'a, Pers. Syn. p. i> 

 Cryptospkaria auranlia Grev. Scot. Cr. Fl. tab. 78. 

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

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



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

 thick, ol)tuse, exserted ostiolum. Subiculum (Verticillium agaricin- 

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

 Asci cylindrical, 25-30 \ (>/, it. containing eight oblong-lanceolate, uni- 

 septate, constricted, 35 x6| /7 sporidia, which are mucronate at each 

 end. 



. On decaying Ar/f/j'trt/s. Pennsylvania (Michener). 



H. asterophorus, Till. Sel. ( 1 arp. III. }. 55 (partly), Plowr. Grev. 

 XL p. (), tab. 147. 



Perithecia originating in an ftluscd. liyssoid strouia, in which they 

 arc thickly strewn, ovoid or splutroid, iiarro\\-<-(l above into a more or 

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

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

 ovate, abruptly attenuated below. 40-50x18-20 t u, containing 4(\ 

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

 subhyaline. then dirty-yellow. 25-35x5 fj. sporidia. 



Parasitic on Nyctalis, Carolina (Ravenel). 



Dr. Plowright, in his monograph already cited. sa\>: "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 and originate from the intertwining of the dilated and convo 

 luted bases of the conidia-bearing hypha.* that compose the strorna. 

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

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



