182 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



j* 5. C. coLLiS'us .Doug, The Hill-side Ceanothus. 



Identification. Doug, in MSS. ; Fl. Cab., t. 13. 

 Engravings. Fl. Cab., t. 13. ; and our Jig. 27;>. 



Spec. Char., $c. Branches decumbent, round, and 

 smoothish. Leaves ovate or elliptic, somewhat 

 clammy, glandular,serrated, upper surface shining, 

 under surface covered with adpressed hairs, 3- 

 nerved. Stipules awl-shaped. Panicles axillary. 

 (Knowles and Westcott.) A hardy, evergreen, low, 

 decumbent shrub. North America. Height 1 ft. 

 Introduced in 1827. Flowers white, produced 

 in great abundance ; June and July. Fruit 

 brown; ripe in September. 

 Layers, which root readily, or seeds. 



Other Species of Ceanothus. C. ovatus and C. 

 intermedius, we have seen, on the authority of 

 Torrey and Gray, are only varieties of C.americanus; 

 and w*e have no doubt that this will be the case 

 with C. ovalis, C. sanguineus, C. oreganus, and 

 other species described by authors. In short, there 

 appears to us no assignable limits to the sports and 

 hybrids that may be produced in this genus. 



Ceandthus colllnus. 



ORDER XXIII. HOMALINA N CE^. 



ORD. CHAR. Calyx funnel-shaped, its tube usually adnate to the ovary, its 

 limb with 5 15 lobes. Petals inserted into the calyx, as many as its lobes, 

 alternate with them, smaller than they, and deemed by some an inner whorl 

 of lobes of the calyx. Glands present in front of the segments of the calyx. 

 Stamens arising from the base of the petals, either singly, or in threes or 

 sixes. Anthers 2- celled, opening longitudinally. Ovary 1 -celled, with nu- 

 merous ovules. Styles 3 5, simple. Fruit berried or capsular. Seeds 

 small. (Lindl.) Trees or shrubs ; natives of South America. 



Leaves simple, alternate, with deciduous stipules, sub-evergreen ; toothed 

 or entire. Flowers axillary, in spikes, racemes, or panicles. The species in 

 British gardens belong to the genera AristotehVz and Azara (the latter rather 

 tender), which are thus contradistinguished : 



ARISTOTE V LW L'Herit. Corolla of 5 petals. Stamens 15 18, polyadel- 

 phous. Fruit a globose, free, 3-celled berry. Cells 1 2-seeded. 

 zA^Ryf R. et P. Corolla none. Stamens numerous. Fruit a globose 1- 

 celled, o-seeded berry. 



GENUS I. 



ARISTOTE^L/J L'Herit. 



THE ARISTOTELIA. 

 Polvandria. 



Lin. Syst. Polyadelphia 



Identification. L'Herit. Stirp., p. 31. ; Dec. Prod., 2. p. 56. ; Don's Mill., 2. p. 58. 

 Derivation. Named in commemoration of Aristotle, the celebrated philosopher and naturalist. 



Gen. Char. Calyx campanulate, profoundly 5-clcft. Petals 5, inserted in the 



