714 



L. hysterioides, (Pers.) 



Xylonia hysterioides, Pers. Syn. p. io6. 

 Lopkodermium xylomoides, Chev. Flor. Par. I, p. 437. 

 Hysteriumfoliicolum, Fr. S. M. II, p. 592. 

 Hypoderma xylomoides, DC. FI. Franc. VI, p. 164. 

 Hyslerium Serberidis, Schleich. Exsicc. No. 182. 

 Aporia microiheca. Duby, Hyst. p. 52. 

 Scliizothyrium microthecum. Sacc. Syll. 5554 (fide Rehtn). 

 Lophodermium hysterioides, Sacc. Syll. 5808. 

 Exsicc. Fckl. F. Rh. 742, 759.-M. & N. Stirp. Vog. 76i.-Rab. Herb. Mycol. II, 156, id. 

 F. E. 1151.— Rehm Asc. 867.— Sydow, M. March. 856, 1838. 



Perithecia scattered on roughish, pale spots, innate, convex-eriim- 

 pent, elliptical, sometimes suborbicular, straight or sometimes a little 

 bent, mostly simple, suhshining-black, the sharp lips nearly closed, 

 leaving only a slight, narrow crevice, about 1 x i- ram. Asd clavate, 

 obtusely pointed above, stipitate, 8-sporcil, 80-100x9-10 ji, with 

 filiform paraphyses bent into a spiral above. Sporidia filiform, curved, 

 continuous, hyaline, 60-70 x 1^ fi, lying pnrallel, but somewhat curved 

 or twisted around the longer axis of the n^^cus. 



On leaves of Andromeda axillaris. North Carolina (Schw.): 

 found in Europe mnstly on leaves of the Rosacem. 



L. maculare, (Fr.) 



Hyslerium maculare, Fr. S. M. II, p. 592. 

 Lophodermiitm maculare, De Not. Piren. Ister. p. 40. 

 Exsicc. Fckl. F. Rh, 1752.— Moug, & Nestl. Stirp. Vog. 1072.— Thum. M. U. 75. 



Perithecia scattered on pale spots which are sometimes limited 

 by a narrow, black line, adnate, mostly less than 1 mm. long by \-h, 

 mm. broad, elliptical, obtuse, simple, at first depressed above, then 

 swollen, the opposite sides slanting up towards each other, and their 

 upper, brownish margins separated by a straight, narrow, longitudinal 

 cleft extending nearly across. Asci clavate, obtusely pointed at the 

 apex, stipitate, 40-50 x 5 ^, with filiform paraphyses more or less bent 

 or hooked at the tips. Sporidia 8 in an ascus, filiform, somewhat 

 twisted together, 30-40 x 1 p.. 



On leaves of various species of Vaccinium, around Newfield, 

 N. J., and probably common throughout the United States and Canada. 



Var. albolahrum, E. & E., Exsicc. Ell. N. A. P. 859 (partly). 

 Perithecia with white-mai-gined lips, as in L. melaleucum, but with 

 asci and sporidia as in the usual form. On leaves of som6 unknown 

 shrub or tree, Utah (S. J. Harkness). 



In some copies of N. A. F. two kinds of leaves were distributed 

 under No. 859. The var. is on the longer, narrower leaves, on large, 

 irregular shaped, bleached spots bounded by a narrow, black line. 



