306 



PB ACTIO AL GUIDE TO GARDEN PLANTS ceanothus 



green surface. Flowers in May and June, 

 nearly white or very pale blue. 



Culture dc. as above. This species 

 requires wall protection. 



C. floribundus. — A Californian shrub 

 with small, oblong acute, serrulate, shining 

 green leaves. Flowers in June, brilliant 

 blue, crowded in globular heads. 



Culture dc. as above, p. 305. 



C. integerrimus. — A shrub 3-6 ft. 

 high, native of California. Leaves ovate- 

 oblong entire or slightly glandular, with 

 entire not toothed edges. Flowers in .June, 

 usually white, sometimes tinted with blue, 

 and borne in large panicles at the ends of 

 the shoots. 



Culture (tc. as above. Best grown on 

 a wall. 



C. microphyllus. — A somewhat de- 

 cumbent N. American species 2 ft. high, 

 with small, oblong, blunt, entire leaves. 

 Flowers in May and June, white. 



Culture dc. as above. Barely seen. 



C. ovatus (C ovaUs). — A native of 

 Eastern N. America, closely related to C. 

 americanus. It has narrow oval leaves 

 1-2 in. long, smooth above, and toothed 

 on the margins. Flowers from June to 

 September, white. 



Culture dc. as above, p. 305. 



C. papillosus. — A hairy Californian 

 shrub 6-10 ft. high. Leaves narrowly 

 oblong, serrulate with numerous wart-like 

 excrescences on the dark green shining 

 upper surface. Flowers in May and June, 

 blue, in dense clusters. 



Culture dc. as above. Best on a wall. 



C. rigidus. — Native of California 5-8 

 ft. high. Leaves broadly wedge-shaped 

 or obovate, often emarginate, sHghtly 

 toothed and, like C. cuneatus, opposite 

 instead of alternate, on the wooUy or 

 downy branches. Flowers in April and 

 May, deep purple, in long terminal spikes. 



Cultmre dc. as above. Best on a wall. 



C. thyrsiflorus {C. elegwns). — An ele- 

 gant species, native of California, where 

 it is said to grow into a fine tree about 

 25 ft. high. The distinctly angled branches 

 are clothed with smooth glossy green 

 toothed leaves 1-2 in. long, and the 

 brilliant blue flowers are borne in dense 

 clusters from June to September. 



Culture dc. as above. This species 

 requires the protection of a wall, although 

 it may succeed as a bush or small tree in 



the open in the mildest parts of the south 

 and west. 



C. veitchianus. — A fine Californian 

 shrub, with thick, smaU, oblong-obovate 

 glandular serrulate leaves with a smooth 

 and shining upper surface. Flowers in 

 early summer, rich deep blue, in dense 

 clusters at the ends of the leafy branches. 



Culture dc. as above. Best on a wall. 



C. velutinus. — A pretty Californian 

 species having large ovate leaves, deep 

 green above, whitish beneath. The whitish 

 flowers are borne in dense clusters during 

 the summer months. 



Culture dc. as above. This seems to 

 be more tender than any of the other 

 species described above. It must there- 

 fore be protected by a warm wall, and 

 may prove quite hardy in the south and 

 west in the most favoured localities. 



COLLETI A. — A genus of curious and 

 remarkable shrubs often without leaves, 

 and having spreading opposite and 2- 

 ranked branches with spiny shoots. Leaves 

 when present very small, entire, opposite. 

 Flowers clustered or solitary beneath the 

 spines. Calyx membranous beU-shaped 

 or tubular with a 4-5-oleft limb. Petals 

 none, or 4-6 inserted at the mouth of the 

 calyx. Stamens 4-6, inserted with the 

 petals. Fruit a drupe or capsule. 



C. cruciata (0. hictoniensis) . — A very 

 remarkable looking shrub 4-10 ft. high, 

 native of Uruguay, having the stems fur- 

 nished with pairs of flat triangular woody 

 spines, often 11 in. across at the base, 

 each pair of spines being usually at right 

 angles to the next pair, thiis giving a cross- 

 like arrangement. As a rule the small 

 ovate toothed leaves appear only on the 

 young branches. The small creamy or 

 yellowish-white flowers (which have no 

 petals) appear in autumn, either singly or 

 in clusters, on the under side of the flat 

 spines, and attract attention when in great 

 abundance. There are various forms of 

 this ferocious looking shrub known, and 

 they were at one time regarded as distinct 

 species. The best known perhaps is C. 

 spinosa (or C. liorrida), which may be 

 recognised by having long slender stiff 

 and sharply pointed spines over 1 in. 

 long, and only slightly flattened. Occa- 

 sionally both forms — C. cruciata with 

 broad flattish spines, and C. spinosa with 

 long slender spines — are found on the same 

 plant. Other variations have been recog- 

 nised and are represented by such names 



