ARCTOSTAPHVLOS. 37 



densely bearded at base'; style about twice the length of the ovary, in- 

 cluded, or slightly exsert; ovary densely tomentose at the summit; 

 fruit orbicular, two to three lines broad, with a smooth, thin pericarp 

 and scanty pulp, becoming wrinkled at maturity, enclosing five easily 

 separable nutlets, nearly equal in size, and two-celled by a partition 

 from the ventral suture, occasionally both cells fertile or more or less 

 abortive. 



Habitat: Abundant along the edges of ravines in Lower California, 

 within twenty miles of the United States boundary line. First collect- 

 ed in April, 1882, without fruit, and distributed in the collections of 

 Mr. C. G. Pringle as Arctostaphylos polifolia, H. B. K. ; since collected 

 in fruit at Table Mountain, in February, 1883, by C. R. Orcutt and the 

 writer. A very distinct species, differing from all others of the genus 

 in its opposite or ternately-whorled leaves, suggesting the specific name, 

 A. oppositifolia, to replace the manuscript name of A. salicifolia, under 

 which it has been distributed. Also noted for its double-celled nutlets. 



