296 Ericaceae 



choripetalous flowers. Calyx tree from the ovary, 

 4 5-parted or 1 5-cleft 3 mostly persistent. Corolla regu- 

 lar or rarely somewhat 2-lipped and irregular, usually 

 •1 5-toothed, Lobed or divided. Stamens hypogynous, 

 usually as many or twice as many as the corolla-lobes : 

 filaments mostly separate ; anthers 2-celled. attached to 

 the filament by the back or base, the sacks often pro- 

 longed above into tubes, dehiscent by terminal pores or 

 chinks, often awned. Disk crenate-lobed or often none. 

 Ovary usually 2-5-celled ; style elongated or short; 

 stigma peltate or capitate : ovules usually numerous. 



anatropous. Fruit a capsule, berry or drupe. S Is 



numerous or sometimes only 1 in each cavity : endo- 

 sperm fleshy. 



Fruit granular, baccate. 1. Akbutcs. 



Fruit not granular, smooth or pubescent, drupaceous. 



2. Arctostaphylos. 



1. ARBUTUS L. 



Trees or shrubs, with evergreen and coriaceous alter- 

 nate petiolate leaves, and white or flesh-colored small 

 flowers in a terminal cluster of racemes or panicles. 

 bracts and bractlets scaly. Calyx small. 5-parted. 

 Corolla urceolate with 4-5 small recurved teeth. Ovary 

 on an hypogynous disk, 4— 5-celled ; ovules crowded od a 

 fleshy placenta projecting from the inner angles of each 

 cell. Style rather long ; stigma obtuse. Fruit a many- 

 seeded berry. 



1. A. Menziesii Pursb. (MahroSo.) Commonly 5-10 m. 

 high; hark exfoliating, deep red; leaves glahrous, elliptic <>r 

 ovate, green above, glaucous heneath, 5-10 cm. long, entire or 

 those of young shoots denticulate; petioles about 1 cm. long: 

 flowers in an ample terminal panicle or dense racemes; berry 

 Meshy, red, suhgloliose, 8-10 mm. in diameter, surface granular. 



Mount Wilson and Sturtevant trails at about 8000 feet altitude, and In 

 Los Tunas Canyon, Santa Monica Moun 



