HYMENOSCYPHA. 



119 



ARRANGEMENT OF THE SPECIES. 

 A. Sporidia broadly elliptic or ovate. 



1. 



2. 



3. 



4. 



5. 



(a) On fruit 



(b) On twigs 



B. Sporidia oblong or fusiform. 



(a) On fruit 



(6) On branches, twigs, or leaves 

 0. Sporidia cylindrical 

 D. Sporidia unknown 



KEY TO THE SPECIES. 



Hymenium pallid yellowish green 



Hymenium brown or greyish-brown, 



Hymenium yellow 



Margin subserrate 



Margin tomentose 



Margin even 



Externally white 



Externally yellow 



Stem long, slender, fl-xuous 



Stem short, firm, thi<-kish 



Sti-ni filiform 



Externally scabrous . . 



Externally glabrous . . 



Stem short, thick, flexuou?, umb> r-hr >wn 



St. MII t-lftidfr. :it lirst .*ubt..nifnto.se, pale brown 



Stem long, slender, flexnons, pallid-brown 



Stem attenuated downwards, blackish-brown 



species 8-10 

 11 



12-13 

 H-17 



18 

 19 



V 



Juteo-virescene. 



1 



2 



lolari*. 



amentacea. 



4 



Aspegrenii. 



3 



BryopJiila. 



ferotina. 



tuba. 



pseudo tuber osa. 



5 



caucus. 



echinophila. 



firma. 



A. SPORIDIA BROADLY ELLIPTIC OR OVATE. 



(a) On fruit * 

 8. Hymenoscypha pseudo-tuber osa. (Rehm.) 



Cup infundibiiliform, when moist expanded, sub- 

 patelliform ; externally, as well as the stem, brown or 

 olivaceous brown, slightly scabrous ; hymenium livid or 

 livid-brown ; stem long, rather slender, subnexuous ; asci 

 cylindraceo-clavate ; sporidia 8, elliptic, obtuse at the 

 ends, 9 10 X 4 o/n ; paraphyses filiform. (Plate V. 

 tig. 25.) 



Peziza pseud o-tuberosa Rehm, "Asco.," No. 106; 

 Pat., p. 171, f. 378. Sclerotinia Batschiana Zopf. and 



* The tfiro " fruit " is used here in a popular sense to include the parts 

 closely associated with the fruit. 



