1 68 RHAMNACEAE 



CEANOTHUS. Mountain Sweet. Fls. small, 5-parted (buds star-shaped), in 

 small clusters forming spikes or panicles ; sepals curved inwards, the petals spread- 

 ing outwards from between them. Seed-pod round or top-shaped, 3-lobed at end. 



(a) Ls. 2-nerved, alternate 



C. americanus. New Jersey Tea. 3. June-August. D. Ls. ov., 3, bright 

 green, downy below. Fls. white, in terminal panicles. East United 

 States. (Fig. 86 c.) 



* C. azureus. 6. July-September. D. Ls. ov., 2, white-felted below. Fls. 



blue. Mexico. 



* C. Delilianus. 6. July-September. D. Like C. americanus, but fls. blue. 



Hybrid. (Fig. 86 g.) 



Variety Gloire de Plantieres. Fls. deep blue. 



Variety Gloire de Versailles. Fls. bright blue. 



Variety Leon Simon. Fls. dark blue. 



Variety Victor Jouin. Fls. pale blue. 

 C. pallidus. 3. July-September. D. Like C. Z>e/e7/a«M5, but Is. nearly hairless. 



Fls. pale blue or pink. Hybrid. 

 C. thyrsiflorus. Californian Lilac. 30. June-August. E. Branchlets angular. 

 Ls. ov., 2, glossy above, pale green below. Fls. pale blue (sometimes 

 white), in lateral racemes. California. (Fig. 86 d.) 



* C Veitchianus. 12. June- August. E. hike C.thyrsiflorus,huth. smaller and 



3-nerved at base only. California (hybrid). (Fig. 86 F.) 



(b) Ls. pinnately nerved 



* C. dentatus. 6. May. E. Ls. alternate, ov., i. Fls. bright blue. California. 



(Fig. 86 E.) 



Variety floribundus (C. floribundus). More floriferous. 



* C. papillosus. 12. May. E. Ls. alternate, oblong, lane, 2, conspicuously 



warted, margins recurved. Fls. blue. California. 

 C.prostratus. \. May. E. Ls. opposite, i, spiny and leathery. Fls. blue. 

 California. (Fig. 54 m.) 



* C. rigidus. 12. April-May. E. Ls. opposite, obov., \, coarsely toothed, 



white below or white between veins, much crowded on stiff branches. 

 Fls. deep purplish blue. California. (Fig. 56 M.) 



COLLETIA. Stems green, furnished with opposite spines. Ls. very small or 

 absent. Fls. small, white, solitary or in few-flowered clusters below spines. Fruit 

 a dry pod. 



C. armata. 10. September. Spines straight, cylindrical. Chile. (Fig. 37 G.) 

 C. cruciata. 10. September. Spines triangular, flattened. Chile. (Fig. 37 H.) 



C. infausta. 10. May. Spines cylindrical, slightly curved. Chile. 



DISCARIA. Stems with opposite spines. Ls. opposite or in clusters, i or less. 

 Fls. small, greenish white, crowded in axillary clusters. Seed-pod 3-lobed. 



D. serratifolia. 14. May. D. Branches long, slender, drooping. Spine f. 



Ls. toothed. Chile. (Fig. 54 f.) 



* D. Toumatou. Wild Irishman. May. D. Spine i|. Ls. entire. New 



Zealand. (Fig. 54 e.) 



