690 



Tr. insciilptiim, Cke. Disc oi MM- I'. S. p. 32. 



Exsicc. EH. N. A. F. 150. 



iM'iniipent, slate-colored, gregarious, thin, |-1| nun. Ion" 1 , oblong 

 elliptical or irregular in shape, closely embraced by the epidermis and 

 scarcely rising above it, margin thin, erect, scarcely -in curved, often 

 undulate from the pressure of the ruptured epidermis against it. Asci 

 vcntricose. sessile, overtopped by the abundant paraphyses which are 

 olivaceous and conglutinated above. Sporidia inordinate, oblong, nni- 

 septate and constricted, pale at first, soon dark brown, 25-35 x 12 p. 



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



H: ~ Sporidia 3- or more-septate (Tryblidiellu). 



Tr. riifitlmn, (Spreng.) 



Hysterium rufidum, Spreng. ia Vet. Ac. Holm. 1820, p. 20, Fr. S. M. II, p. 584, 

 Hysterium confluens^ Kze. in Weig. EXS. 

 Tryblidium confluens, De Not. Pir. 1st. p. 16. 

 Tryblidiella r/tfula, Sacc. Syll. II, p. 757. 

 Exsicc. Rav. F. Car. II, No. 47. Rav. F. E. 3369. Rab. F. Am. 637. 



Erumpent, oblong, flexuous or subtriangular, smooth, brownish- 

 black; lips swollen, transversely striate, 2-3 mm. long, and 1 mm, 

 wide, disk brick-red. Asci 150-200 x 15-1 5 //, without paraphyses, 

 clavate-thickened above. Sporidia uniseriate, oblong, 3-septate, 24-= 

 30 x 10-12 /JL (30-35 x 10 //, Sacc. in Syll.), scarcely constricted at the 

 <epta, reddish-brown, becoming nearly opake. 



On bark of dead limbs, Southern States and California, 



In the fresh state this resembles a Peziza, the disk being nearly 

 orbicular and fully exposed, but when dry, the opposite margins roll 

 together and the plant assumes the aspect of Hysterium with the lips 

 loosely closed. 



Var. microsporum, E. & E., Triblidiella jEllisii, Rehm, in Rab. 

 Krypt. Flora, Discom. p. 235, Exsicc. Ell. N. A. F. 1285, differs from 

 the usual form only in its smaller (18-22 x 6-7 /JL) sporidia. 



Tr. clavsesporum, Pk. 35th Rep. N. Y. State Mus. p. 143. 



Receptacles, when moist, suborbicular, plane or slightly convex, 

 margined, j-1 mm. diam., black, when dry, more or less contracted, 

 hysteriiform, with thick lips. Asci clavnte or cylindrical, 90-112 fj. 

 long. Sporidia oblong-clavate, crowded or liseriate, colored, 4-sep- 

 tate, 20-27 x 7 i-H)/^. 



On decorticated wood of willows (/6V///.* 1 ii/'f/ru), Albany, N. Y^ 



(Peck). 



