102 CELASTRACEjffiL 



CELASTRACEJE. 



\ slender deciduous shrub with 4-angled branches: leaves 2-4 inches long 1 



A. low much-branched evergreen: leaves 6-18 lines long, numerous 2 



1. EUONYMUS, Tournefort. 

 1. E. occidentalis, Tourn. Flowers dark brown, parts in 5's, rotate, drooping. 



2. PACHYSTIMA, Kafinesque. 

 1. P. Mersinites, Baf. Flowers greenish, parts in 4's, about a line broad, 



BHAMNACE2E. 



Flowers greenish. Leaves alternate : flexuose branches spiny 1 



Leaves alternate: not spiny : fruit juicy 2 



Leaves opposite, 1 or 2 lines long: fruit dry 8 



Flowers white or blue, in dense clusters: fruit dry 4 



1. ZIZYPHUS, Jussieu. 

 i. Z. Parryi, Torr. Peduncles axillary, recurved in fruit, 1-3-flowered. 



2. RHAMNTTS, Linnaeus. 



Flowers apetalons and mostly dioecious: seeds concave 1, 2 



Flowers with minute petals, mostly perfect: seeds convex on the back. 8, 4 



1. R. alnifolia, L'Her. Low: deciduous leaves acute at each end, serrate. 



2. R. crocea, Nutt. Leaves acutely denticulate, evergreen, thin. 



3. R. Californica, Esch. Leaves elliptical to ovate-oblong, evergreen, thick. 

 Var. tomentella, Gr. Densely white-tomentose. Both forms common in CaL 



4. R. Purshiana, DC. Elliptical leaves 2 to 7 inches long, deciduous. 



3. ADOLPHIA, Meisner. 



L A. Californica, Watson. In dense clumps 2 or 3 ft. high, branchlota spiny. 



4. CEANOTHT7S, Linnaeus. 



1. Leaves all alternate: fruit not crested. _ 



Leaves 3-nerved from the base. 



Branches not rigid or spiny: leaves glandular serrate (except No. IV 



Flowers white in large clusters 1, 2, 3 



Flowers blue 4, 5, fl 



