65 



Cups with punctured <>r lacerate membranea and proliferations much 

 branched, sometimes bearing second or third ranks of cups, each .still 

 further proliferate; <>r with cups largely abortive or absent, bul pa 

 widely branching. KOH -. (PI. 3, f. 2.) 



H. C. multiformis 



Primary squamules smaller than in the last three species, podetia bearing 

 cups with no or very slight closing membranes, or cupless, KOH — . (PI. 

 2, f. 2.) 



24. C. crispata 



Primary squamules small, lobate or laciniate, podetia cylindrical and 

 erect, with narrow, perforate cups, with incurved margins, often with 

 several erect or suberect proliferations, which are pointed or tipped with 

 small, narrow cups; or with larger proliferations bearing relatively large 

 cups, sometimes again proliferate, giving a two or three ranked effect, 

 and a total height of two or three inches. Podetia sorediate from apex 

 downward, base usually corticate and sometimes squamulose. KOH—. 

 (PI. 2, f. 4,6,7.) 



26. C. cenotea 

 Podetia not cup-forming. 



Plants very small and delicate, on decaying wood, sorediate-granulose, 

 cortex dispersed or wanting, podetia short, simple or branched. KOH + 

 yellow. 



27. C. delicata 



Podetia much-branched, branches often dichotomous, slender and elon- 

 gated, cortex continuous or areolate, apices often subulate, axis irregularly 

 gaping, KOH—. Pinnately branching forms of this species may be mis- 

 taken for some of the Cladinae, since the Cladinae, the Unciales and 

 forms of C. furcata may be found together. But the Cladinae have blunt 

 tips, the Unciales sharp tips, and while some forms of C. furcata have 

 subulate tips they are not as sharp as those of C. uncialis, and their 

 branching is more loose and sprawling than that of the others, and they 

 more often have an olive hue which distinguishes them in mixed colonies, 

 from the gray or green tints of the others. Densely branching forms were 

 described and pictured in the earlier paper; the northern form here illus- 

 trated, var. racemosa, f. furcatosubulata, is simpler. (PI. 3, f. 6.) 



21, C. furcata 

 Like C. furcata, but sorediose. (PI. 3, f. 3.) 



22. C. scabriuscula 



Clausae. Yainio. Primary thallus persistent or disappearing, squamules 

 white or creamy beneath. Podetia usually basally persistent, cupless, or 

 with closed cups, axils closed. Podetia not intertangled, but growing sep- 

 arately by themselves, except where crowded, when they may be attached 

 by intergrowths on the podetia or cups. This series includes the common 



