132. Cladonia] 34. CLADONIACEAE 245 



F. Primary thallus usually persistent, podetia stouter, 



KOH minus (in ours) 9. CI. didyma 



D. Podetia corticate, sometimes decorticate, usually branched 

 E. Primary squamules yellowish green; podetia 



always corticate 16. CI. cristatella 



E. Primary squamules usually greenish gray; podetia 



sometimes decorticate 6. CI. Floerkeana 



SECTION 3 



A. Cups, axils, or tips of the podetia usually perforate 



B. Podetia usually yellowish green, rarely pallid; apothecia pallid; 

 primary thallus usually soon disappearing 

 C. Podetia slender or slightly turgid, elongate or 



repeatedly branched 19. CI. amaurocraea 



C. Podetia more or less turgid, usually short 



D. Sides of the podetia often perforate 22. CI. reticulata 



D. Sides never perforate 



E. Podetia thick and bulbous 21. CI. caroliniana 



E. Podetia more slender 



F. Tips of podetia usually subulate 20. CI. uncialis 



F. Tips short and obtuse 20. CI. uncialis obtusata 



B. Podetia whitish, greenish white, or brownish, rarely yellowish; 

 apothecia usually dark 

 C. Podetia always corticate throughout 



D. Primary squamules large; podetia usually more or less 



irregular and cups often absent 37. CJ. turgida 



D. Primary squamules smaller; podetia usually regular 



E. Podetia small to medium size 29. CI. floridana 



E. Podetia usually long and repeatedly branched 

 F. Axils of the podetia not conspicuously dilated, 

 narrowly perforate or sometimes imperforate 

 G. Podetia whitish or greenish gray 



H. Podetia not conspicuously squamulose, at least 

 not throughout 



I. Podetia elongated, much branched 23. CI. furcata racemosa 

 I. Podetia shorter, less branched . . . . 23. CI. furcata 

 H. Podetia usually more or less squamulose throughout 



I. Podetia slender 23. CI. furcata pinnata 



I. Podetia rather stout 23. CI. furcata Finkii 



G. Podetia often brownish or olive-brown above 



H. Podetia with cups 24. CI. palamaea 



H. Podetia usually without cups 



I. Apices of the podetia pointed, KOH 

 plus (yellow) 

 J. Cortex scattered and forming small 



patches 26. CI. rangiformis 



J. Cortex subcontinuous . . 26. C. rangiformis pungens 

 I. Apices usually blunt, KOH plus (brown) . 25. CI. Herrei 

 F. Axils of podetia dilated, perforations gaping 



G. Cups usually wide; podetia stout, the ranks short 



H. Podetia squamulose 30. CI. crispata divulsa 



H. Podetia usually without squamules ... 30. CI. crispata 

 G. Cups very narrow or absent; podetia slender, 



the ranks long 30. CI. crispata gracilescens 



C. Podetia more or less decorticate, or coralloid, or granulose 

 D. Podetia short 



E. Podetia granulose or coralloid; primary squamules 

 esorediate or granulose 



F. Podetia short, cupless; cortex granulose .... 27. CI. santensis 

 F. Podetia longer, often with cups; cortex usually with 



coralloid squamules 28. CI. exasperatula 



E. Podetia more or less decorticate; primary squamules sorediate 



F. Podetia abortive, decorticate, KOH minus . . 33. CI. caespiticia 



