344 



On Draba hirta and Draha WaMeabergu, Upernivik, Green- 

 land. 



PI. pe.ntamera, Karst. Fungi SpetsI). p. 99. 



Perithecia scattered, at first covered by the epidermis, then emerg- 

 ent, subsphisroid, very obtusely conoid or depressed above, subas- 

 tomous, glabrous (rarely beset with straight, jointed, black hairs), 150- 

 250 /i diam. Asci very short-stipitate, clavate, 105-150x24-30 //, 

 8-spored, parapliysate. Sporidia biseriate, ovoid-elliptical, or sub- 

 elongated, 5-septate (rarely 5-6-septate), mostly with one cell divided 

 by a longitudinal septum, scarcely constricted at the septa, brownish, 

 20-24x10-15//. 



On Carex, Poa, Agropyrum and Festuca, Gi'eenland. 

 PI. vagans, Niessl. Notiz. p. 14. 



Perithecia scattered or seriate, depressed-spherical, dai'k brown, 

 sparingly fibrillose below, otherwise glabrous, with a small, conical 

 ostiolum. Asci clavate or oblong-clavate, 8-spored, short-stipitate, 

 Sporidia biseriate, oblong or clavate-fusoid, straight or curved, often 

 boat-shaped, 5-septate, with an imperfect longitudinal septum, honey- 

 yellow. 



Var. Arenaria, Niessl. 1. c, has the perithecia tolerably large 

 (250-270 fi diam.), scarcely erumpent, vrith. a tolerably thick, obtuse, 

 perforated ostiolum. Asci broad, 105-120x21-23//. Sporidia cla- 

 vate-fusoid, straight, the third cell broader, 27-30 x 9-10*/i. 



On Elymus arenarius, Greenland. The part of the stem occu- 

 pied is often colored brownish. 



PI. platyspora, Sacc. Mich. II, p. 251. 



Perithecia gregarious, at first covered by the epidermis, then 

 nearly free, | mm. diam., globose-depressed, glabrous but with creep- 

 ing hyphfe around the base, with a short, conoid ostiolum. Asci cvlin- 

 dric-clavate, 100-120x18 /«, short-stipitate, paraphysate, 8-spored. 

 Sporidia biseriate, flattened, 4-septate, not constricted, cells divided bv 

 a longitudinal rieptum, 22-24 x 12-14 ,u, and 6-7 // thick, straw-yellow, 

 with a gelatinous envelope. 



On Vesicari.a, Draba, Arabis, Aruteria, Erigeron and Polyg- 

 onum, Greenland. 



