593 

 D. deiista, Ell. & Martin. Am. Nat. Oct. 1882, p. 809. 



Exsicc. EU. N. A. F. 1184. 



Pustules oblong or elliptical, 1-3 mm. diara., covered by the 

 blackened and raised epidermis, scattered irregularly or often longi- 

 tudinally -subconfluent, forn)ing blackened strips several centimeters 

 long and 1-2 mm. wide, uneven on the surface, and with the appear- 

 ance of elongated swellings or flat ridges roughened by the seriately- 

 erumpent, obtuse, imperfectly quadrisulcate, black ostiola. Perithecia 

 in "clusters of 6-15, buried in the somewhat blackened substance of the 

 matrix but without any distinct, circumscribing line, flask-shaped, 

 brown, about ^ mm. diam. or rather less, necks short. Asci clavate, 

 75-85 (p. sp. 60-65) x5|-7 /^, polysporous, stipe comparatively short. 

 Sporidia allantoid, yellowish, moderately curved, 5^-7 x 1| //. 



On petioles of Sabal serrulata, Florida (Martin). 



D. Liriodendri, (Schw.) 



Sphceria Liriodendri, Schw. Syn. Cai;. No. 60. 



Erumpent, prominent, subconfluent, 4-6 mm. diam., seated on the 

 bark (which is blackened to the wood) and at first surrounded by it ; 

 surface pulverulent, roughened by the indistinct ostiola, which finally 

 become more prominent, at length black inside. Perithecia 3-5, sub- 

 globose, with short necks. Sporidia allantoid, hyaline, curved, 6 x 1| ;z. 



On dead limbs oi Liriodendron, Salem, N. C. (Schw.). 



The spec, in Herb. Schw. has the sti'oma smaller than stated 

 above, only l|-2 mm. 



D. Fr(istii, Pk. Bot. Gaz. Ill, p. 35. 



Exsicc. Ell. & :^vrlit. N. A. F. 2d Ser. 2529. 



Stromata wart-like, 1-2 mm. diam., seated on the inner bark which 

 is blackened and marked around each stroma with a circumscribing 

 line penetrating to the wood, erumpent, surrounded and partly covered, 

 except the apex, by the ruptured epidermis, black outside, greenish 

 within forming a white spot on the wood beneath. Perithecia ovate- 

 globose, 10-15 in a stroma, J-f mm. diam. Asci polysporous, cylin- 

 dric-clavate, stipitate, paraphysate, p. sp. 75-80x12-15 //. Sporidia 

 yellowish, allantoid, moderately curved, 7-8 x 2 //, with a nucleus in 



each end. 



On dead maple limlis, Vermont (Frost), Connecticut (Thaxter), 

 California (Harkness), Iowa (Holway). 



The ostiola vary from obtuse-conical to subelongated, conic-cylin- 

 drical, entire, often obscure. 

 75 



