354 Durand: Studies in North American Discomvcetes 



nearest related to Lahmia Korb., from which it differs in its stipi- 

 tate habit, dark hypothecium, and tomentose stem. 

 I add a description and synonymy. 



HOLWAYA Saccardo, Syll. Fung. 8: 646. 1889 



A genus of the Patellariaceae. Ascomata stipitate, stipe tomen- 

 tose ; hypothecium and excipulum dark brown ; sporidia 8, hya- 

 line, filiform, multiseptate, not breaking up at maturity. 



Ascus form. 



Holwaya gigantea (Peck) Durand 



1886. 



Patellaria leptosperma Peck, Reg. Rep. 30: 62. 1878. 

 Bulgaria opliiobolus Ellis Am. Nat. 17: 193. 1883. 

 Holwaya ophiobolus (Ell) Sacc. Syll. Fung. 8: 646. 1889. 

 Lecanidion leptospermum (Pk.) Sacc. Syll. Fung. 8 : 800. 

 1889. 



Chlorospleniiun Canadense E. &. E. Proc. Phil. Acad. Nat. Sci. 

 41 : 146. 1893. 



Holwaya UliaceaJL. & E. Am. Nat. 31 : 427. 1897. 

 Conidial form. 



Stilbitm gigantatm Peck, Reg. Rep. 24 : 93. //. j. f. J-g. 



1871. 

 Cory n e Ellisii Berk. Grev. 2: 33. 1873. 

 Graphium giganteum (Pk.) Sacc. Syll. Fung. 4: 611. 



Dacryopsis FMisiana Massee, Jour. Myc. 6 : 181.//. 7./. ig-21. 

 1891. 



Ascus form. — Caespitose or single, scattered, stipitate. Disk 

 cup-shaped, becoming plane, or the margin reflexed and umbili- 

 cate, orbicular, or irregular from mutual pressure, when fresh .7 5- 

 1.5 cm. in diameter, greenish-black, externally same color, pruinose 

 or granular. Stem .25-75 cm. high, tapering downward, green- 

 ish-black, covered with an olive-brown tomentum, which often dis- 

 appears with age. Flesh dark brown to black. In drying the plant 

 shrinks to less than one-half its former size and becomes black. 

 Hypothecium well-developed, of intricately interwoven hyphae ; 

 excipulum of slender interwoven hyphae, passing into a cortical 

 layer of pseudo-parenchyma, of polygonal cells about 10 ft in 

 diameter, which project from the surface in groups giving it a 

 granular appearance. This layer is confined to the sides of the 

 cup and upper part of the stem. Stem composed of closely inter- 

 woven hyphae which project from the surface forming the tomen- 



