CALIFORNIAN MANZ ANITAS. 483 



CALIFORNIAN MANZANITAS. 



A Partial Revisiou of the Uva-iirsi Section of the genus Arctostaphylos, 

 Adans., as Represented on the North American Pacific Coast. 



BY C. C. PARRY. 



Read June 20th, 1887. 



California is the native liome of the " 3Ianzan{tas ,' ' con- 

 fining the application of this well known common name to 

 the Uva-ursi Section of the botanical genus Arctostaphy- 

 los, Adans. r 



Though the typical species on which the genus was 

 founded {A. Uva-ursi), is barely found within its northern 

 limits, the more conspicuous forms, including not less than 

 twelve species, constitute a marked feature of Californian 

 scenery, and are everywhere recognized as among its most 

 attractive floral displays. 



Having several years ago undertaken a partial revision of 

 the genus Arctostaphylos in Proceed. Dav. Acad. Science, 

 Yol. IV, 31-37, the writer was naturally interested in con- 

 tinuing those observations, and being materially aided by 

 free access to the valuable collections and library of the 

 California Academy of Science, it seenas eminently proper 

 to present the results to the scientific public through the 

 medium of the California Academy Bulletin. 



At the time of the publication above referred to, I very 

 naturally inferred that the commonly received species, as 

 described in current systematic botanical works, were clearly 

 defined, and referred to properly authenticated names. It 

 was therefore a matter of no little surprise to find as the 

 result of careful field observations, that though as growing 

 plants distinct species could be readily recognized, the 

 published descriptions, on account of imperfect material, 



