GENERA AND SPECIES. 97 



15. Cladonia deformis. Primary thallus sparingly 

 present or wanting. Podetia from medium to long, 

 very rarely bearing thalloid lobules, rather thick, ter- 

 minating in a cup which becomes degenerate and indis- 

 tinct with age. Apothecia on secondary branches of 

 considerable length, which grow from the margin of 

 the cup ; rather large, confluent. Disk convex, scarlet. 



16. Cladonia hellidi flora. Primary thallus fairly 

 well developed. Lobes rather large, irregularly branch- 

 ing. Podetia long, thick to very thick, rarely branch- 

 ing, usually covered with thalloid lobules. Apothe- 

 cia large, irregular in outline. Disk a bright-scarlet. 

 Spores 13.5/i, X 3.5yot. 



n. Cladonia cornucopioides. Primary thallus- 

 lobes irregularly scattering, rather long, branching. 

 Podetia of medium length, rather thick, expanded, 

 trumpet-shaped above, covered by minute scaly warts. 

 Apothecia on short stalks growing from the edge of 

 the expanded portion ; entire, orbicular to elongated, 

 variable in size and form. Disk bright-scarlet. 

 Spores 10/a X 2.5/x. 



" This is probably the ' red cup-moss ' of which Mrs. 

 Hemans sings in the following stanza : 



" ' Oh ! green is the turf where my brothers play 

 Through the long bright hours of the summer day ; 

 They find the red cup-moss where they climb. 

 And they chase the bee o'er the scented thyme.' 



" It occurs in the antarctic regions and is otherwise 

 somewhat widely distributed. It appears to contain a 

 small quantity of gummy and starchy matter ; hence 



