120 



Same as above, but with subulate podetia more frequently bear- 

 ing apothecia; cups when present as above but smooth in- 

 side. KOH+ brownish. 41. C. ochrochlora. 

 Cups deep and often large, simple, or much varied by prolifera- 

 tions, with second ranks of cups or with ample apothecia. 

 KOH -. (PI. 4, f. 5.) 38. C. chlorophaea. 

 Cups shallow and small, irregular, or usually lacking and re- 

 placed by subulate apices which are often fertile. KOH — . 



42. C. pityrea. 



Podetia not cup-forming. Plants neither sorediate nor granulose. 



Primary squamules minute, podetia simple or slightly branched 



and short with large apothecia or much branched with small 



apothecia. Cortex irregular or lacking. KOH — . (PI. 3, f. 3.) 



30. C. mitrula. 



Primary squamules small, medium to large: podetia simple and 



club shaped, or with short branches. 



Podetia grayish green to olivaceous, cortex continuous to areo- 



late, surface sometimes flattened or depressed. 



Primary squamules somewhat erect and densely crowded; 



podetia in one form densely squamulose. CaCl (KOH) + 



bluish green. (PI. 3, f. 4.) 43. C. strepsilis. 



Plants small, but stouter and more branched than above, 



KOH-. (PI. 3, f. 7.) 31. C. clavulifera. 



Podetia short and slender or stout. Obconic, usually somewhat 



branched, KOH+ yellow, followed by brick red. (PI. 3, 



f. 8.) 32. C. subcariosa. 



Podetia short and usually simple, obconic, thickest just below 



apothecia, cortex fissured in small areoles, KOH—. (PI. 



3, f. 9.) 33. C. brevis. 



Forms of species and habitat notes. 



1. C. raxgiferixa (L.) Web. (PI. 1, f. 1.) In moss or thin 

 soil over ledges, in the Highlands of New Jersey and southern 

 New York, not very common; f. crispata Coem., a smaller, 

 densely intertangled, erect form, is sometimes found with the 

 species. 



2. C. sylvatica (L.) Hoffm. Occasionally found mixed 

 with C. rangijerina, but not common; plentiful on Fire Island 

 Beach, L. I. 



3. C. mitIs Sandst. (PI. 1, f. 3.) Common in eastern Long 

 Island, covering large areas in open sandy places in Suffolk 

 County: also on the New Jersey Pine Barrens: less frequent in 

 the highlands. 



4. C. tenuis (Floerke) Harm. (PI. 1, f. 2.) Occasionally 

 found mixed with C. mitis, or sometimes in exclusive colonies, 



