110 POMACES. 



serrate, more or less pubescent beneath, 2 4 in. long, with 1 or 2 glands 

 on the petiole just below its summit: racemes 34 in. long, many-flowered: 

 drupe globose, red or dark purple, astringent, putamen ligneous, glo- 

 bose. Hills behind North Berkeley; also in San Francisco Co. Fl. 

 April, fr. Sept. 



3. OSMAROXIA, Greene. (Oso BERRY). Deciduous shrub, with 

 flowers dioecious, in pendulous racemes terminating short leafy branch- 

 lets. Calyx turbinate-campanulate, 5-lobed. Petals 5, broadly spatulate, 

 erect in the pistillate flowers, spreading in the staminate. Stamens 15, 

 in two rows, 10 inserted with the petals, 5 more deeply within the calyx- 

 tube; filaments slender, short. Pistils 5; styles short, lateral, jointed at 

 base. Drupes 14, ovoid, with thin pulp and osseous putamen. Seed 

 solitary; cotyledons convolute. 



1. 0. cerasiformis (T. & G.), Greene. Stems 210 ft. high, the 

 bark dark brown: leaves broadly oblanceolate, entire, obtuse or acutish, 

 mucronulate, 23 in. long, short-petioled: racemes shorter than the 

 leaves; bracts conspicuous: fl. white, very fragrant: drupes 68 lines 

 long, slightly compressed, blue-black; pulp very thin, bitter. Coast 

 Range hills. Jan. April. 



ORDER XXXV. P M A C~E AL . 



Trees and shrubs with astringent but neither bitter nor poisonous 

 properties; not gummiferous. Leaves alternate, simple or unequally 

 pinnate, with caducous stipules. Flowers perfect, regular, racemosely 

 or corymbosely clustered, white or reddish. Calyx-tube urceolate or 

 campanulate, more or less coherent with the ovary, the usually short 

 free portion lined with a staminiferous disk: limb 5-lobed, imbricate in 

 aestivation. Petals 5, perigynous. Stamens mostly 20, inserted on the 

 disk. Ovary of 2, 3 or 5 carpels, becoming a pome; styles as many as 

 the carpels. Seeds usually 2 in each cell, collateral, ascending; coty- 

 ledons fleshy; albumen 0. 



1. AMELANCHIER, Label. (SERVICE-BERRY). Shrubs with decid- 

 uous oblong or rounded serrate or subentire leaves, and bracted racemose 

 white flowers appearing with them in early spring; the bracts caducous. 

 Calyx-tube broadly turbinate; segments as long as the tube, erect or 

 reflexed in flower. Petals linear-oblong; plane. Stamens 20, shorter 

 than the petals. Styles 35, coalescent at base or distinct; carpels as 

 many, incompletely 2-celled, but only 1 seeded. Fruit small, berry-like, 

 dark purple, more or less glaucous, the pulp sweet and edible. 



1. A. a I ni folia. Nutt. Arborescent, but seldom 10 ft. high: leaves 

 nearly full grown at flowering time, but thin, dark green, oval or oblong- 

 ovate, obtuse at both ends, coarsely serrate toward the apex, otherwise 



