501 



Stroma broadly effused, formed of the unchanged or oftener black- 

 ened substance of the bark or wood, or also pulvinate, toiberculiform or 

 valsoid, sometimes hardly perceptible. Perithecia subglobose, monos- 

 tichous, scattered irregularly as in Cryptospho&ria or collected in 

 valsoid groups as in Eutypella, white-furfuraceous outside at first. 

 Ostiola mostly short, but also subelongated, curved or obtuse, more or 

 less deeply 4-5-snlcate, never smooth as in Eu. lata. Asci clavate, 

 long-stipitate, p. sp. 35-55x6-8 fi. Sporidia biseriate, allantoid, 

 rounded at the ends, slightly curved, yellowish, 9-15 x 2 J 3 //. 



On dead wood and bark of Ulmus, Canada (Dearness), on Robinia 



pseudacacki and (Genista tinctoria)^. Newfield, X. J. 



The specc. in N. A. F. (a) and the Canada specc. on Ulmus, have 

 the stroma pulvinate as in Diatrype, \-\ cm. across, and more or less 

 confluent, white inside, circumscribed with a black line; N. A. F. 2118 

 (b) has the stroma much smaller and valsiform or subeffused. Sac- 

 cardo enumerates 38 different hosts, and in Syll. I, p. 1 68 refers to this 

 as probable synonyms, Valsa leprosd, (Pers.), V. confluens Nits., and 

 perhaps V. refer dens, Nits. The species is a very variable one and 

 widely diffused. 



Eii. milliaria, (Fr.) 



Sphcsria milliaria Fr. in Kze. & Schmidt. Mycol. Hefte, II, p. 36. 



Diatrype milliaria, Fr. Summa Veg. Sc. p. 3S5. 

 Valsa milliaria, Nits. Pyr. Germ. p. 149. 

 Eutypa milliaria, Sacc. .Syll. 649. 



Stroma broadly effused or maculiform, roundish or elongated to 

 as much as 3 cm., or irregularly confluent, forming narrow, parallel 

 stripes lying close together, sunk in the wood which is pustuliform- 

 elevated and more or less blackened, at first only on the surface, but 

 finally also within. Perithecia entirely buried in the wood, monos- 

 tichous, crowded, globose, with short necks and globose, entire or 

 slightly sulcate ostiola, which render the smooth (at first uncolored) 

 surface of the wood black-punctate. Asci clavate-eylindrical, long- 

 stipitate, 8-spored, about 25x5 ijl (p. sp.). Sporidia biseriate or uni- 

 seriate below, allantoid, slightly curved, hyaline, 7-9 x H-2 u. 



On decorticated wood, New Jersey (Schw.), Pennsylvania (Mich- 

 ener sec. Berk in Grew We have seen no specc. Found in Europe 

 on hard, dry wood of oak, beech, Staphylea, Ac. 



This and Eu.leioplaca are always on bare wood, which is raised 

 into pustuliform swellings with the surface at first uncolored, but finally 

 blackened through and through. The perithecia being entirely sunk 

 in the stroma, leave the surface smooth and even, but punctate-rough- 

 ened by the slightly projecting ostiola. 



