LICHENS OF SANTA CRUZ PENINSULA 387 



cordance with tlie determinations of Dr. Zahlbriickner, but the 



account here presented is only tentative. Before the Cladonias 



of the region can be understood a full collection of determined 



material must be at hand for purposes of comparison with local 



material. 



Cladonia Hill, His. PI. 91. 175 1 ; in part. 



Cladonia Wainio, Monog. Clad. Univ. 1887. 



KEY TO THE SPECIES. 



a. Apothecia scarlet ; podetia powdery or granular.. 9, ??iacilen/a,'T^()i. 

 aa. Apothecia brown. 



b. Not cup-bearing; podetia irregularly branclied. 



c. Podetia stout, ciespitose, club-shaped, densely clad with leafy 



squamules 7. sgHa?nosa, 390. 



cc. Podetia slender, fruticose, subulate ; branches spreading, 



curved, much divided S. fiircata racemosa^ 391. 



bb. Podetia cup-bearing ; simple. 



d. Cups proliferous. 



e. From the center 6. verticillata^ 390. 



ee. From the margins of the much reduced cups. 



3. chlorop/icca pro/iycra^ 2)^S. 

 dd. Cups not proliferous. 



f. Podetia turbinate, with cyathiform cups. 



g. Podetia longitudinally furrowed.. i . pyxidata costata^ 387. 

 gg. Podetia not longitudinall}' furrowed; epidermis of yel- 

 lowish or sulphur-colored powder.. 3. chloi'opha;a^ 3S8. 

 ff. Podetia cylindrical, trumpet- or club-shaped ; cups reduced, 

 often obsolete. 

 h. Podetia stout, short, roughened and verrucose or even 



squamulose 5 . Jimbriata tiibccforinis^ 389- 



hh. Podetia powdery ; not roughened. 



/. Podetia stout, trumpet- or clul)-shaped ; tips obscurely 



cup-like Ty. Jimbriata clavata, 7)^^. 



a. Podetia slender, filiform, pointed, to coarse and blunt, 

 with greatly reduced zw^s..^. Jimbriata cornuta^ 3S9. 



I. CLADONIA PYXIDATA COSTATA Floerke. 



Primary thallus of minute to medium-sized ascendant squam- 

 ules, entire or crenate-lobate ; rarely large ; color sage-green to 

 brown. Podetia short, stout, turbinate, with longitudinal fur- 



