CEANOTHUS. VITACE.E. 115 



southern California. 



C. cordulatus Kell. Proo. Cal. Acad, ii, 124, fig. 39. A densely ces- 

 pitose erect shrub with intricate branches and spinose branchlets, 4—6 

 feet high, hirsutely pubescent with short erect or spreading hairs and 

 cinereous: leaves oval to elliptical or oblong, 6—12 lines long, rounded 

 or subcordate at base, finely glandular-serrulate, densely tomentose 

 beneath, somewhat coriaceous on slender petioles 3—6 lines long, de- 

 ciduous: flowers white, in racemes or fascicles: styles united to 

 near the summit, shorter than the stamens. In the mountains of 

 southern Oregon and California. 



§ 2 Cerastes Watson 1. c. Leaves mostly opposite, 1 -ribbed, 

 with numerous straight parallel veins, very thick and coriace- 

 ous, spinosely toothed or entire. Flowers in sessile or short-ped- 

 uncled axillary clusters. Fruit large, with 3 horn-like or warty 

 processes below the summit. 



C. cuneatus Nutt. 1. c. An erect shrub 2—12 feet high with rigid 

 intricate branches; the young branches white with a villous tomen- 

 tum, at length smooth and whitish: leaves cuneate-obovate or ob- 

 long, rounded or refuse above, entire or rarely few-toothed, minutely 

 tomentoge beneath, on short rather slender petioles: flowers white or 

 rarely light blue, in rather loose axillary fascicles. On dry hillsides, 

 from the lower Willamette (the original locality,) to Lower California. 



C. pumilis Greene Eryth. i, 149. A rigid depressed mucn branched 

 under shrub: branches 6—18 inches long, rooting at the nodes and 

 forming mats 1—3 feet in diameter: leaves cuneate-oblong to obo- 

 vate, 2—6 lines long, entire to spinose-dentate, but mostly 3-toothed at 

 the apex, very minutely white-tomentose between the veins beneath. 

 very short petioled: flowers bright blue to white, fascicled at the ends 

 Of short lateral branches; pedicels filiform, 6—8 lines long; sepals 

 ovate, spreading, nearly a line long; styles united to the top, shorter 

 than the stamens. On dry hillsides, about Waldo, Josephine Co., Ore- 

 gon. 



C. prostratt*s Benth. PI. Hartw. 302. (Mahala Mats). Glabrous, 

 prostrate, the branches rooting and repeatedly subdivided, the whole 

 forming a close mat 2—8 feet in diameter: leaves 3—12 lines long, ob- 

 ovate or oblong-cuneiform, obtuse or truncate, with 2 or 3 pairs of 

 coarse spinose teeth above the middle, on short slender petioles: flow- 

 ers dark blue to white, clustered at the ends of short stout peduncles: 

 fruit large, with erect horns. In open pine forests, Washington to Cal- 

 if oriMP.. 



Order XXIII VITACE.E Lindl. Nat. Syst. ed. 2, 30. 



Mostly climbing shrubs with simple or compound leaves, 

 the upper ones opposite the racemes or thyrsoid panicles of 

 small flowers, or tendrils. Calyx minute, nearly entire or 5- 

 toothed. Petals 4 or 5, inserted upon the outside of an annu- 

 lar disk, inflexed, valvate in the bud, caducous. Stamens as 

 many as petals and opposite them, inserted on the surface of 

 the disk. Ovary 2 celled, with two collateral ovules in each 

 cell. Style short or none: stigma simple. Fruit a globose, 

 mostly pulpy berry, often by abortion 1-eelled. Seeds anatro- 

 pous, erect, with a hard testa. Embryo much shorter than the 

 horny or fleshy albumen : radicle slender. Cotyledons lanceo- 

 late or subulate. 



