172 



BRITISH DISCOMYCETES. 



SUBGENUS I. NIPTERA. Fckl. (in part). 



Cup sessile, concave or plane, soft or waxy, glabrous 

 or granulose ; sporidia ovate or fusiform, simple, some- 

 times 1-septate. (Plate VI. fig. 32.) 



Name Niptrum, a basin ; from the shape. 



ARRANGEMENT OP THE SPECIES. 



A. Sporidia ovate, apiculate . . 



B. Sporidia oblong-elliptic 



c. Sporidia fusiform or oblong-fusiform 

 (a) On wood 

 (6) On fir-cones . . 



(c) On herbaceous stems 



(d) On culms of Arundo 



KEY TO THE SPECIES. 



Hymenium yellow 

 Hyrnenium grey . . 



Hymenium pallid 

 (Externally ochery-yellow 

 \Externally umber-brown 

 Externally watery cinereous . . 

 Externally greenish-brown . . 

 Externally cinereous or livid ; margin pal 

 disc 



Externally rufous ; margin fimbriate 

 Externally brownish-black . . 

 .Externally black . . . . 



o ("Exterior pallid: on Arundo .. 

 ' \Exterior pallid : on Peltiyera canina 

 , JMargin fimbriate 

 ' \Margin entire . . . . 



species 1 

 2 



3-5 

 6 



7-10 

 11 



2. 



A. SPORIDIA OVATE, APICULATE. 



1. Mollisia aquosa. (B. and Br.) 



Cup at first closed, then expanded, plane, or slightly 

 concave, greenish-brown, smooth ; hymenium watery 

 grey; sporidia biseriate, ovate, apiculate, 5 6 X 2'5 

 3-5/1. 



Peziza, (Mollisia) aquosa B. and Br. in " Ann. Nat. 

 Hist," No. 1326, t. xx. f. 19 ; "Grevillea," i. p. 130. 



On or with Sphceria hirsuta, on willow. January. 



Resembling P. cinerea, but smoother and more con- 



