i 



236 ERICACEAE 



Arctous alpinus (Arctostaphylos alpina). Black Bearberry. ^. April- 

 June. D. Ls. obov., i^, thin, rounded at end, round-toothed towards apex, 

 net-veined. Fls, very small, white or pinkish, in terminal clusters. Berry ^, black. 

 Northern Hemisphere. (Fig. loi g.) 



Bruckenthalia spiculifolia. h May-June. E. Ls. linear, |, in whorls of 

 four, sharp-pointed, downy. Fls. small, pink, bell-shaped, in dense terminal 

 spikes, corolla persistent, C (4), A8. Fruit a dry capsule. East Europe and Asia 

 Minor. (Fig. 48 b.) | 



Calluna vulgaris. Ling, Heather. 3. August-September. E. Ls. opposite, 

 minute, scale-like, in four rows, keeled. Fls. purplish pink, in thin terminal spikes, 

 corolla persistent, C (4), AS. Fruit a dry capsule. Europe (including Britain). 

 (Fig. 48 P.) 



Variety alba. Fls. white ; Is. bright green. 



Variety alba aurea. Fls. white; Is. golden. 



Variety alba pilosa. Fls. white; Is. greyish. 



Variety Alportii. Tall; fls. crimson. 



Variety argetitea. Fls. purple; Is. silvery. 



Variety aurea. Fls. purple; Is. gold. 



Variety coccinea. Fls. red; Is. greyish. 



Variety cuprea. Tall; fls. purple; Is. red to bronze in winter. 



Variety flore pleno. Fls. double, pale pink. 



Variety Foxii. Dwarf cushiony tufts; fls. pink. 



Cassandra (Chamaedaphne, Andromeda) calyculata. Leather Leaf. 2. 

 March-April. E. Ls. alternate, ov., i|, finely toothed in outer half, scurfy or scaly 

 below. Fls. |, white, bell-shaped, solitary in 1. -axils, K5, C (5), Aio. Fruit a dry 

 capsule. Northern Hemisphere. (Fig. loi K.) 

 Variety nana. Dwarf form. 



CASSIOPE (ANDROMEDA). Ls. opposite, minute, scale-like, in four rows, 

 keeled. Fls. solitary, white or pinkish, nodding, K5, C (5), Aio. Fruit a dry 

 capsule. 



C. fastigiata. Himalayan Heather. April-May. E. Ls. with silvery margin. 



Himalaya. (Fig. 48 Q.) 

 C. tetragona. April-May. E. Ls. without silvery margin. Arctic regions. 



Cladothamnus pyrolaeflorus. 10. June. D. Branchlets reddish, angular, 

 hairless. Ls. alternate, obov., oblanc, 2, entire, hairless, stalkless or nearly so. 

 Fls. I, pink, K5, C5, Aio; corolla deeply divided into five separate petals, solitary 

 or in twos or threes at end of shoot. Fruit a dry capsule. West North America. 

 (Fig. 124 F.) 



CLETHRA. Ls. alternate, ov., lane, tapering base, toothed except at base, 

 prominently veined. Fls. white or pinkish, in terminal racemes or panicles, K5, 

 C (5), Aio, corolla deeply divided into five separate petals. Fruit a dry capsule. 



C. acuminata. White Alder. 20. July-August. D. Ls. 6, long-pointed, with 

 10-15 pairs of veins, nearly hairless, crowded at end of shoot. Fls. in 

 solitary spikes. South-east United States. (Fig. 102 b.) 



C. alnifolia. Sweet Peppermint. 8. August-September. D. Ls. obov., 

 oblanc, 4, short-pointed, with 7-10 pairs veins, nearly hairless. Fls, 

 fragrant. East North America, (Fig, 102 a,) 



