ROSACES. Ill 



entire, woolly-pubescent beneath, even in age: racemes oo - flowered; 

 bracts setaceous, long-woolly: calyx densely tomentose, the triangular 

 lanceolate teeth closely reflexed: petals spatulate -linear, % in. long, 

 plane: stamens very short, not equalling the calyx-teeth. Banks of 

 streams, and, in dwarf form, on rocky hills. 



2. HETEROMELES, Itewer (CALIFORNIA HOLLY. CHRISTMAS BEERY). 

 A small evergreen tree with simple coriaceous serrate leaves, and num- 

 erous small white flowers in terminal corymbose panicles. Calyx tur- 

 binate; limb 5-parted, the lobes at length inflexed over the carpels and 

 becoming fleshy. Petals rounded, concave. Stamens 10; filaments 

 dilated at base and slightly connate. Ovary 2 3-celled, 46 ovuled; 

 styles and stigmas 23. Fruit ovoid, red, berry-like with dry mealy 

 pulp; carpels free from the fleshy calyx-tube above the middle. Seeds 

 1 2 in each cell, erect; testa thin -.cartilaginous. 



1. H. arbutifolia (H. Ait. f ), Kramer. Usually 1025 ft. high; nascent 

 parts tomentulose: leaves dark green and shining, narrowly oblong to 

 oblong-lanceolate, acute at both ends, sharply but not very closely 

 serrate or dentate, 2 4 in. long: pome 3 lines long: seed one-half as 

 long. Very common along streams and on northward slopes. Fl. July, 

 fr. Dec. 



3. MALUS, Tourn. (APPLE-TREE. CRAB- APPLE). Small deciduous 

 trees. Leaves simple, more or less serrate ; Flowers rather large, reddish 

 or white, corymbose at the ends of short lateral branchlets. Stamens 

 20. Styles 5, more or less united at base. Carpels 5; wholly covered by 

 the adnate calyx-tube, chartaceous in^ fruit, 2-seeded. Pome large, 

 globose, depressed at each end, the flesh acidulous, destitute of grit -cells. 



1. M. rivularis (Dougl.), Eo3m. Tree 1525 ft. high: leaves ovate- 

 lanceolate, acute or acuminate, 13 in. long, often slightly 3-lobed, 

 sharply serrulate, more or less pubescent when young : corymb somewhat 

 racemose; pedicels slender, 1 in. long: petals orbicular, 34 lines broad, 

 white: pome red or yellow, short-cylindrical, ^ in. long or more. The 

 Oregon Crab-apple has been found as far southward as Sonoma Co. 



2. M. GOMMUNIS, DC., the common apple of the orchards, already of 

 frequent occurrence by waysides, is becoming naturalized in California, 

 as it already is in many parts of the world where it has been long 

 cultivated. 



ORDER XXXVI. R S A C E / , 



Herbs or shrubs often prickly, with alternate frequently compound 

 leaves and mostly foliaceous commonly adnate stipules. Flowers perfect 

 or unisexual, solitary, cymose, corymbose, or paniculate. Calyx free 

 from the ovary, 4 5-cleft, the segments valvate (rarely imbricate) in 



