596 



1). rtiteioleiica, (Pr.) 



Sphezria enteroleuca, Fr. S. M. It, p. 381, Schw. Syn. N. Am. 1314. 

 J'a/sa enieroleuca, Cke. Syn. 1971. 



" Conceptacle crustaceoiis, rough, nearly free, ahout as large as a 

 pea. Perithecia minute, subglobose, numerous, irregularly scattered 

 in the white substance of the stroma. Ostiola rounded, often short- 

 cylindrical, sometimes elongated and tentacular." 



On decorticated branches, Bethlehem, Pa. (Schw.). 



Specc. in Herb. Schw. have the stroma pustuliform-tubercular, 

 erumpent, 1-1| mm. diam., closely embraced at first by the fibers of 

 the wood, then' bare, black (white inside). Perithecia crowded, small, 

 about I mm. diam. Ostiola only slightly prominent, rather flattened, 

 sulcate. Asci 50 X 12-15 /< (p. sp.). Sporidia allantoid, 5-6 x 1 //. 



D. prorampens, (Wallr.) 



Sphisria proru-mpens, Walll". MS. Fr. S. M. II, p. 357, Schw. Syn, N. Am. 1247. 



Perithecia globose, irregularly aggregated, nestling in the bark, 

 with short necks, covered above with a thin, black stroma, erumpent 

 in elongated, irregular strips or series. The circumscribing line at the 

 base surrounds not a single disk with its subjacent perithecia, but 

 whole groups of perithecia. 



On branches of Robinia, Bethlehem, Pa. (Schw.). 



Asci and sporidia about as in D. Rhois, which this much re- 

 sembles. 



D. friabilis, (Pr.) 



Sphtzria friabilis, fr. S. M. ll, 361. H'erb. Schw. and Schw. Syn. N. Aim. i2f6o. 

 Diatrype friabilis, Cke. Grev. XIII, p. 38. 



Stroma very prominent, orbicular or elliptical, ^-A mm. broad, 

 convex or depressed, subplicate, pale white within, indistinctly circum- 

 scribed around the base. Ostiola hidden. Asci (p. sp.) 45-50x 10- 

 12 //. Sporidia allantoid, not much curved, 5-7 x 1| //. 



On Ilex prinoides and Viburnum pmnifolium^ Carolina and 

 Pennsylvania (Schw.). 



The measurements of asci and sporidia are from spec, in Herb. 

 Schw. 



D. nielasperraa, (Fr.) 



Sphceria melaspermn, Fr. S. M. II, p. 389. 

 Diatrypella nielasperma, Sacc. Syll. 767. 



In the young state the pustules are innate in the bark, and cir- 

 cumscinbed by'a dark line, stroma pale yellowish and without peri- 

 thecia. Disk erumpent, linear, black. When mature, pustules ellip- 



