155 



isiana, have the asci 70-80 x 10-11 p, and sporidia 15-20x3 p, 3-6- 

 septate, and the hairs on the perithecia shorter. 



A. decastylum, (Cke.) J1V * c > (Plate 19) 



Sphceria decastyla, Cke. Grev. VII, p. 52. 



Lasiosphceria subvelutina, E. & E. Journ. Mycol. Ill, p. 117. 

 Sphceria cariosa, C. & E. Grev. VI, p. 94, tab. 100, fig. 28. 

 Sphceria atriella, C & E. Grev. VI, p. 94. 

 Acanthostigma decastylum, Sacc. Syll. 3614. 

 Exsiec. EH. N. A. F. 783. 



Perithecia superficial, black, conic-hemispherical, 1 50-200 p diam., 

 sparingly clothed with spreading, straight, remotely septate, rather 

 obtuse, black, deciduous hairs subdiaphanous above, 100-150x4-5 //. 

 Asci clavate-cylindrical, about 150 x 12 //, without paraphyses. Spo- 

 ridia fusoid, hyaline, biseriate, slightly curved, ends rather obtuse, 

 granular, becoming 3-5-septate, 22-30 x4-4J p. Closely allied to 

 A. atrobarbum, (C. & B.), but hairs of perithecia longer and of equal 

 diameter throughout, and sporidia 3-5-scptate. The surface of the 

 wood itself, in both of these species, is thinly clothed with hairs similar 

 to those growing on the perithecia. 



On oak wood, Darien, Ga. (Ravencl), on rotten Magnolia wood 

 and bark, Newiield, N. J., and Bethlehem, Pa. (Rau). 



We have never been able to find the sporidia of Sphmria atriella 

 constricted in the middle, as described and figured in Grevillea, and 

 regard that species as only a more robust form of S. cariosa. The 

 mature perithecia become bald. It is not improbable that Sphceria 

 lojigispora, Ell. Bull. Torr. Bot. Club, VI, p. 135, is the same as this, 

 but the specc. are too poor and scanty to determine with certainty. 



A. Clintonii, (Pk.) c^wi***. ft -^vt^^Myr^. \r^<^C] 



Sphceria Clintonii, Pk. 30th Rep. p. 65, pi. II, figs. 19-23. 

 Acanthostigma Clintonii, Sacc. Syll. 3610. 

 Venturia Clintonii, Cke. Syn. 2889. 



"Perithecia very small, 120-160 p. diam., subglobose, gregarious, 

 black, clothed with erect, black, bristly hairs. Sporidia fusiform, mul- 

 tinucleate, then 5-7-septate, colorless, 40-45 p long. 



On decaying wood, Alden, N. Y. (Clinton). 



Related to A. scapula (C. & P.), from which it differs in its 

 smaller perithecia and broader sporidia with fewer septa." 



A. atrobarbum. (. & E.) 



Sphceria atrobarba, C. & E. Grev. VIII, p. 15. 

 Chce to sphceria atrobarba, Sacc. Syll. 3215, Cke. Syn. 2660. 

 Exsiec. EH. N. A. F. 590. 



Perithecia gregarious, scattered, superficial, small (100-150 p 

 high), ovate-globose, clothed with scattering, long, black, bristle-like, 

 septate hairs with subhyaline tips. Asci clavate-cylindrical, 70-75 x 



