398 



diam., nestling- in a dirty-brown subiculum. Asci cylindric-clavate, 

 tapering to a slender pedieel which terminates in a bulbous base, 170 x 

 16 /i, 8-spored. Sporidia pale brown, tapering, obtuse at the ends, 

 20-30-septate, constricted, the upper cell, and 1-3 other cells, at irreg- 

 ular intervals, enlarged and globular, 120-140x4-6 fx. 



On decorticated branches of Sambucus glauca, California. 



0. collapsus, Sacc. & Ell. Mich. II, p. 374. 



Exsicc. EH. N. A. F. 584. 



Perithecia gregarious, covered by the epidermis, then erumpent, 

 depressed-globose, \ mm. diam., collapsing to cup-shaped, becoming 

 black, not seated on any spots. Asci cylindrical, short-stipitate, 80- 

 1 10 x 8-10 jui, 8-spored. Sporidia rod-shaped, slightly curved, nodulose- 

 thickened in the middle, 70 x 2 i. 12-15-guttulate, hyaline. 



On dead stems of Trifolium pratense, Newfield, N. J. 



0. versisporus, E. & M. Journ. Mycol. I, p. 99. 



Exsicc. EH. & Ev rht. N. A. F. 2d Ser. 1961. 



Perithecia scattered or gregarious, covered by the cuticle, lentic- 

 ular, J- mm. diam., covered by the blackened epidermis which is 

 whitened just around the short, obtuse, barely erumpent ostiolum. 

 Asci 70-80x8-9 fi. Paraphyses? Sporidia filiform, curved, multi- 

 nucleate at first, but at length of a uniform pale yellow color, without 

 nuclei or septa, 60-70 x 2-2 i p.. 



On dead petioles of Sabal serrulata, Florida (Martin). 



Melanconium Sabal, Cke. is usually associated with this. 



Species imperfectly- known. 

 0? glomus, (B. &.) 



Splicer ia glomus, B. & C. Grev. IV, p. 152, 

 Ophiobolus? glomus, Sacc. Syll. 4055. 

 Raphidospor a glomus, Cke. Syn. 4570. 



"Perithecia convex, perforated. Sporidia linear, sigmoid, 25- 

 50 /i long. Stylospores are produced within flat, dark specks seated 

 on forked threads, at first joined in pairs, so as to make an obovate 

 mass, then separating and still obovate, but narrow, 25 p long. On 

 Ambrosia, Alabama." 



0. Solidaginis, (Fr.)? 



Sphceria Solidaginis, Fr. Elench. II, p. 106. See also Grev. VI, p. 16. 

 Ophiobolus Solidaginis, Sacc. Syll. 4034, Cke. Syn. 4547. 



Perithecia scattered, dc prc^ed - globose , 300 p diam., covered b\ 



