OF THE WASATCH REGION 57 



ORDER RHAMNAL.ES. 



RHAMNACE-flE. Buckthorn Family. 



Shrubs or small trees, often thorny. Leaves simple, 

 usually alternate, with small deciduous stipules. In- 

 florescence axillary or terminal. Flowers small and 

 regular; dioecious, polygamous or perfect. Calyx 4-5- 

 toothed. Corolla (if present) of 4-5 perigynous petals. 

 Stamens of the same number as the petals, and opposite 

 them. Ovary 2-5-celled, ripening into a drupe or 

 capsule. 



1. CEANOTHIJS. Snow Brush; Mountain Lilac. 



Leaves more or less leathery. Inflorescence a cymose panicle. 

 Flowers small; perfect; blue or white. Petals 5, long-clawed 

 at base, and hooded above by the coming together of their 

 arched blades. Stamens 5. Style 3-cleft. Ovary half-sunken 

 in the disk. Fruit a 3-celled and 3-seeded elastically-dehiscent 

 capsule. 



1. C. veliitinus Dougl. A thornless shrub 2-12 ft. high, 

 usually glabrous, often shining. Leaves thick and leathery; 

 elliptical or ovate; varnished above, more or less velvety 

 beneath. Flowers white; fragrant. Near the summits of moun- 

 tain ridges. May-June. 



ORDER MAL, VALES. 



MALVACEAE. Mallow Family. 



Herbs or shrubs with mucilaginous juice, and alternate, 

 stipulate usually palmately-veined leaves. Flowers 

 regular. Sepals 5, valvate. Petals 5, convolute, united 

 at their bases and with the base of the stamen-column. 

 Anthers 1-celled, borne on a short filament attached 

 by its base to a central stamen-column, which encloses 

 the carpels. Pistils several; the ovaries united in a 

 ring or forming a several-seeded pod. 



Stigma lateral 1. Malva 



Stigmas capitate. 



Bractlets not bristle-like. 



Ovule 1 only to each cell of the ovary. . 2. Malvastrum 

 Ovules 2 (rarely 1 or 3) to each cell of the 



* ovary 3. Sphaeralcea 



Bractlets bristle-like.. 4. Slda 



