234 



aphysate, 80-105x10-12 //. Sporidia biseriate, fusiform, slightly 

 curved, hyaline, 22-30x4-6 //, sometimes witli a short, hyaline 

 appendage at each end. 



On dead herbaceous stems, Louisiana (Langiois, 1437). 



The sporidia are for some time only 1 -septate, but finally become 

 3-5-septate and yellowish hyaline. The figs. 7-9, tab. Ill, Berlese 

 It-ones, represent the sporidia very accurately. 



Of the two Nos. in Sydow's Mycotheca Marchica issued as L. 

 prcemorsum, 25 7is a Diplodia and 985 a browri-spored Lophiostoma, 

 (at least in our copy). 



LOPHIDIUM, Sacc. 



Michelia I, p. 40. 



Perithecia as in L&pJiiostoma. Sporidia ovate or oblong, brown, 

 muriform. 



L. dimiimens, (Pers.) 



Sp'iceria diminuens, pers. Syn. p. 57 ? Fr. S. M. II, 471. 

 Lophiostoma diminuens, De.Not. Schema, p. 229. 

 Lophidium diminuens, Ces. & De Not. Schema, p. 220. 



Perithecia scattered, prominent, rounded, subdepressed, black. 

 Ostiolum narrow, compressed, small, sometimes subconical. Sporidia 

 elongated-oblong, 6-7-septate, with one or more cells divided by a 

 longitudinal septum. 



On branches of Cratcegus, Cornus, &c., (Europe), Carolina and 

 Pennsylvania (Schweinitz). 



There is no black spot. The perithecia on decorticated branches 

 are bare : on limbs with the bark on, emergent, unequal, soon empty, 

 and the ostiolum broken, truncate, sometimes conical. 



L. compressnni, (Pers.) 



Sphceria compressa, Pers. Syn. p. 56. 

 Sphtzria angustata, Pers. Syn. p. 55. 

 Lophiostoma compressum, Ces. & De Not. Schema, p. 45. 

 Lophiostoma angustatum, Fckl. Symb. p. 158. 

 Lophidium compressum, Sacc. Mich. I, p. 340. 



Fxsicc. Fckl. F. Rh. 924, 925. Kze. F. Sel. 341. Rehm Ascom. 182. Thum. M. U. 1457, 

 1548. 



Perithecia scattered or gregarious, mostly immersed except the 

 long, thin, toothed or entire-margined ostiolum, sometimes finally 

 erumpent, spherical or somewhat compressed and elliptical. Asci 

 clavate-cylindrical, stipitate, 8-spored, 110-130x16-19 IJL. Sporidia 

 obliquely uniseriate or partly biseriate, oblong or clavate-oblong, 

 straight or slightly curved, 5-septate, with one or two cells divided by 



