Sphceria ambleia, C. & E. Grew VII. p. la. 

 Thyridium ambleium, Sacc. Syll. 3993, Cke. Syn. 3981 



416 



Th. ambleium, ((). & E.) 



Sphceria ambleia, C. & 

 Thyridium ambleitim, i 



Perithecia scattered, black, subprominent, covered. Asci clavate* 

 cylindrical. Sporidia broad-lanceolate or acutely elliptical, constricted 

 in the middle, about 5-septate, yellow-brown, 1 5-20 x 8-10 ii (25 x 10 //., 

 Cke.). 



On dead limbs of Carya and Azalea, Newfield, N. J, 

 The specc. of this species are poor and unsatisfactory. 



Th. personatum, (Cke. & Hark.) 



Sphceria personata, Cke. & Hark. Grev. XIII, p. 20. 

 Thyridium personatum, Sacc. Syll. 7124, Cke. Syn. 3986, 



Lignieolous. Perithecia scattered, included in an elliptical, ele- 

 vated, gray or black tubercle pierced by the short, inconspicuous 

 ostiolum. Asci cylindrical, 8-spored. Sporidia uniseriate, elliptical, 

 constricted in the middle, 3-septate, with 1-2 longitudinal septa, bright 

 brown, 18-20x10/.*. 



On decorticated Acacia, California (Harkness). 



We have seen no specc. of Th. personatum, Cke. & Hark., but: 

 the description agrees in all respects with that of Th. lividum. 



Th. Canadense, E. & E. (in Herb.) 



Perithecia scattered or gregarious, on the more or less bleached 

 surface of the wood, minute (J mm. or less), covered by a thin, oblong 

 or lanceolate, black shield 1-1 \ mm. long and pierced in the center 

 by the papilliform ostiolum. Asci cylindrical, subsessile, paraphysate. 

 100-120 x 12-15 ti. Sporidia uniseriate, obovate-oblong, 5-7-septato 

 and muriform, hyaline, 20-27 x 10-13 /i. 



On old (spruce)? logs, Lake Nipigon, Ontario, Canada (Macoun). 



Outwardly this much resembles Th. lividum, but the shield is 

 thinner. Perithecia much smaller, sporidia. larger and hyaline. 



Th. cingulatum, (Mont.) 



Sphceria cingulata, Mont. & Fr. in Mont. Syll. No. 833. 

 Thyridium cingulatum, Sacc. Syll. 3992, Cke. Syn. 3982. 



Covered, blackening the surface with the discharged sporidia, 

 scattered, black. Stroma pulverulent, cortical, covered above by a 

 conceptacle resembling a rough, hemispheric-conical pseudo-perithe- 

 cium. Perithecia globose, one in each stroma, with a moderately long- 

 neck terminating in a shining, papilliform, deciduous ostiolum. Asci 

 clavate, stipitate. Sporidia oblong, 28 x 9 fi, 5-septate and muriform r 

 constricted in the middle, brown. 







