392 HERRE 



On stumps and old logs of Sequoia semfervirens and Psctc- 

 dotsuga tax if oil a. 



A common, handsome and somewhat variable Cladonia. 

 Cladonia macilenta Hoffm. Deutsch. Fl. 2 : 126. 1795. 

 Cladonia macilenta Nylander, Syn. Meth. Lich. 223. i860. 



XX. Dendrographa Darbish. 



Thallus fruticose, erect or decumbent, tufted or matted ; fila- 

 ments terete or compressed basally, branched, with infrequent 

 lateral soredia ; color gray. Alga Trcntepohlia (^Chroolepiis). 

 Apothecia lateral, circular, the disk black, white pruinose; 

 spores quadrilocular, colorless, spindle-shaped or slightly 

 curved. 



On maritime shrubs on coast of California or on earth and 

 rocks in the same region. 

 Dendrographa Darbishire, Ber. der Deutsch. Bot. Gesellsch., 



13 : 313. 1895 ; Darbishire, Monographia Roccelleorum 



(Bibliotheca Botanica, 45). 1898. 



I. DENDROGRAPHA MINOR (Tuck.) Darbish. 



Thallus fruticose, erect or more often lax and decumbent, 

 tufted ; terete and hair-like or slightly flattened below, much 

 and intricately branched, forming dense, tangled clumps ; color 

 gray, or basally blackening. Sterile. Large globose lateral 

 soredia sparingly present. 



Abundant on rocks and earth 50-100 feet above the sea near 

 Golden Gate, San Francisco. As yet not found elsewhere 

 within our limits. 



J^occella leucophcsa var. minor Tuck., 

 Dendrographa minor Darbishire, Ber. der. Deutsch. Botah. 



Gesellsch. 16: 13. 1898. 



XXI. Sphaerophorus Pers. 



Thallus fruticose, erect, shrub-like, rather rigid, much 

 branched ; medulla densely cottony. Tips of the fertile branches 

 swollen, enclosing the globose apothecia ; spores simple, spheri- 

 cal, violet-black. 



But one species occurs in our territory. 

 Sphcerophoriis Persoon, in Usteri Annal. d. Bot. i : 23. 1794. 



