106 The North American Cup-Fungi 



Doubtful Species 



Chlorosplenium ? atrovirens (Pers.) DeNot. Comm. Critt. Ital. 1: 377. 

 1864; Peziza atrovirens Pers. Syn. Fung. 635. 1801; Calloria atrovirens Fries, 

 Summa Veg. Scad. 359. 1849; Coryne virescens Tul. Fung. Carp. 3: 193. 

 1865; Coryne atrovirens Sacc. Syll. Fung. 8: 641. 1889. This species has been 

 reported from North America but no material has been seen which could be 

 ascribed to it with any certainty. This species was treated by DeNotaris 

 under Chlorosplenium but he did not actually make the combination attributed 

 to him. 



Chlorosplenium tortum (Schw.) Sacc. Syll. Fung. 8: 320. 1889; Peziza 

 torta Schw. Trans. Am. Phil. Soc. II. 4: 175. 1832. Described as 8 mm. 

 broad and high, externally aeroginous-green. Identity uncertain. 



20. PYCNOPEZIZA White &Whetzel,Mycologia 30: 187. 1938. 



Pycnidial stage an Acarosporium. 



Apothecia small, not over 5 mm. in diameter, solitary, or 

 gregarious, very short-stipitate to practically sessile, brown or 

 brownish, at first closed, opening irregularly or by a pore, finally 

 expanded, the margin stellate or circular; hymenium light- 

 brown or buff; asci clavate or cylindric-clavate; spores small, 

 ellipsoid, hyaline, simple; paraphyses filiform, simple. 



Type species, Pycnopeziza sympodialis White & Whetzel. 



Apothecia opening irregularly, becoming stellate. 1. P. sympodialis. 



Apothecia opening by a circular pore, becoming scutellate. 2. P. quisquiliaris. 



1. Pycnopeziza sympodialis White & Whetzel, Mycologia 30: 

 190. 1938. 



Acarosporium sympodiale Bubak & Vlengel, Ber. Deuts. Bot. Gesell. 29: 385. 

 1911. 



Apothecia solitary, scattered, short-stipitate, at first erect, 

 pyriform and closed, opening by splitting Geaster-\\k.e into 4-6 

 stellate rays, 3-5 mm. in diameter; stem short but usually dis- 

 tinct, .5-1.5 mm. long and 1 mm. thick, black; hymenium 

 nearly plane, buff to ochraceous, slightly umbilicate; asci cylin- 

 dric-clavate, reaching a length of 75-85 /x and a diameter of 

 6.5-7.5 M, 8-spored; spores narrow-ellipsoid, 3-3.5 X 7-9 /i ir- 

 regularly 1-seriate; paraphyses filiform, scarcely enlarged above, 

 2.5 fx in diameter. 



For description of the pycnidial stage see Mycologia. 



On buds and staminate flowers of Acer rubrum, catkins of 

 Populus canadensis, and buds and catkins of Populns tremnloides. 



Type locality: Malloryville Bog, near Ithaca. 



Distribution : Known only from the type locality. 



Illustrations: Mycologia 30: 189,/. 1-6; 194, f. 11-13. 



