714 



L. hysterioides, (Pers.) 



Xyloma hysterioides, Pers. Syn. p. 106. 

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

 Hysterium foliicolum, Fr. S. M. II, p. 592. 

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

 Hysterium Berberidis, Schleich. Exsicc. No. 182. 

 Aporia microtheca, Duby, Hyst. p. 52. 



Schizotkyrium microlhecum, Sacc. Syll. 5554 (fide Rehm). 

 Lophodermium hysterioides, Sacc. Syll. 5808. 

 Exsicc. Fckl. F. Rh. 742, 759. M. & N. Stirp. Vog. 761. 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-erum- 

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

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

 leaving only a slight, narrow crevice, about 1 x J mm. Asci clavate, 

 obtusely pointed above, stipitate, 8-spored, 80-100 x 9-10 ju, with 

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

 continuous, hyaline, 60-70 x 1J ^, lying: parallel, but somewhat curved 

 or twisted around the longer axis of the ascus. 



On leaves of Andromeda axillaris, North Carolina (Schw.); 

 found in Europe mostly on leaves of the Rosacece. 



L. maculare, (Fr.) 



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

 Lophodermium 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 |-J 

 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 jul, 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 //. 



On leaves of various species of Vaccinium, around Newfield, 

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



Var. albolabrum, E. & E., Exsicc. Ell. N. A. F. 859 (partly). 

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

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



