Supplement 481 



lanceolate, 3 mm. long; petals 8 mm. long; bracts conspicuous 

 mostly scarious, concealing the capsules; seeds irregularly 

 angled, only occasionally grooved. 



Open pine forests of the San Gabriel Mountains; Mt. Wilson, Mt. 

 Gleason. 



Acrolasia piiietornm Heller. Distinguished from other 

 southern California species by the very small flowers; calyx- 

 lobes 1 mm. long; petals 2 mm. long; capsule long attenuate. 



Mt. Wilson, according to Davidson; Rock Creek, Abrams & 

 McGregor. 



ONAGRACEAE 



Boisdnialia. Page 265, insert Spach as the author of this 

 genus. 



ERICACEAE 



Comarostaphylis diversifolia (Parry) Greene. Page 296, 

 insert after Arbutus Menziesii. Shrub with brown shredded 

 bark, tomentose twigs and inflorescence; leaves evergreen, 

 elliptic-ovate, 3-6 cm. long, finely serrate, glabrous above, 

 tomentose beneath; racemes 7-10 cm. long; pedicels 1-2 cm. 

 long, tomentose; fruit fleshy, deep red, rugose-granular, stone 

 solid. 



The genus Comarostaphyli* is intermediate between Arbutus 

 and Arctofttairiijlo*. having the ovules united into a several- 

 celled stone, and the ovary granular-rugose, becoming red 

 and fleshy in fruit. 



On the islands off the coast of southern California, and from the 

 vicinity of San Diego southward into northern Lower California; 

 also within our range in Topango Canyon, Santa Monica Mountains, 

 Ilasse. 



HYDROPHYLLACEAE 



Eriodictyon trichocalyx Heller. Page 327, substitute for K. 

 caUfornicttm. Our plant resembles E. californicum in its glut- 

 inous leaves which are nearly or quite glabrous above, but the 

 inflorescence and calyx are densely pubescent; corolla usually 

 white, 6 mm. long. 



