ENCYCLOPH#DIA OF GARDENING. 
then 10° higher. By layering in Sept. or March. By grafting on 
common species in a close frame or propagator in March. Indian 
azaleas by seeds as advised for rhododendrons; cuttings of halt- 
ripened shoots with a heel inserted in pots of sandy peat under bell- 
glass in temp. 65° to 75° in spring; also by grafting. Hardy deciduous 
azaleas by seeds sown as advised for rhododendrons; cuttings of half- 
ripened shoots inserted in sandy peat in a cold frame in August; layer- 
ing shoots in spring; grafting in spring. 
GREENHOUSE EVERGREEN SPECIES: R. balsaminseflorum, various colours, 
winter, 4 ft., hybrid; brookianum, orange yellow, spring, 3 to 4 ft.; Dalhousie, 
yellow and green, spring, 6 ft., Himalayas; Edgeworthii, white and yellow, 
fragrant, June, 6 ft., Himalayas; Falconeri, white or yellow, May, 8 to 10 ft., 
Himalayas; formosum, white and rose, fragrant, spring, 6 ft., Himalayas; grande, 
white, spring, 10 to 15 ft., Himalayas; indicum (Syn. Azalea indica), various, 
winter and spring, 6 to 10 ft., China; indicum amenum (Syn. Azalea amcena), 
pink, 3 to 6 ft., spring; indicum roseflorum, pink, double; griffithiana (Syn. R. 
Aucklandii), white, yellow, and rose, May, 6 ft., Himalayas; jasminiflorum, pink, 
summer, 3 ft., Java; javanicum, orange, summer, 4 ft., Java; Maddeni, blush, 
summer, 6 to 10 ft., Himalayas; multicolor, yellow, autumn, 2 ft., Sumatra; 
Nuttallii, sulphur, May, 10 to 15 ft., Himalayas; veitchianum, white, fragrant, 
spring, 6 ft., Burma; Wightii, yellow and crimson, June, 6 to 10 ft., Himalayas; 
Taylori, pink, summer, 4 ft., hybrid. See also trade lists. 
HARDY EVERGREEN SPECIES: BR. arboreum, white, rose, and red, spring, 
20 to 30 ft., India; campanulatum, lilac, rose, April, 6 to 10 ft., Himalayas; 
cataubiense, lilac, purple, July, 6 to 10 ft., Virginia; caucasicum, purple, Aug., 
1 ft., Caucasus; ferrugineum (Alpine Rose), scarlet, June, 18 in., Alps; ponticum, 
parent of hardy race, purple, May, 10 to 15 ft., Spain, Asia, etc.; racemosum, 
white and pink, April, 3 ft., N. China. See also trade lists. 
HARDY DECIDUOUS SPECIES: R. calendulaceum (Syn. Azalea calendulacea), 
yellow and red, May, 6 ft., U. States; flavum (Syn. Azalea pontica), yellow, June, 
6 ft., Caucasus; nudiflorum (Syn. Azalea nudiflora), yellow, white, pink and orange, 
June, 3 ft., Canada, Florida, etc.; sinense (Syn. Azalea mollis), white, orange, etc., 
June, 4 ft., China and Japan; viscosum (Syn. Azalea viscosa), Swamp Honeysuckle, 
white, fragrant, summer, 4 ft., N. America. See also trade lists. 
Rhodothamnus (Ground Cistus’—Ord. Ericacew, Hardy 
evergreen flowering shrub. First introduced 1786, 
CULTURE: Soil, equal parts peat, loam & sand. Position, fissures 
between pieces of limestone on rockeries. Plant, March or April. 
Water freely in dry weather. Propagate by seeds, cuttings & layering 
as advised for rhododendron. 
SPECIES CULTIVATED: R. chamecistus (Syn. Rhododendron Chamecistus), 
pink, spring, 6 in., Austrian Alps. 
Rhodotypos (White Kerria).—Ord. Rosacex. Hardy deciduous 
flowering shrub. First introduced 1866. 
CULTURE: Soil, good ordinary. Position, against 8. or W. walls 
or fences. Plant, Oct. to March. Prune in May or June, cutting off 
old or weak shoots only. 
POT CULTURE: Compost, two parts loam, one part leaf-mould & 
sand. Pot, Oct. Place in cold greenhouse & water moderately. After 
flowering, place plants in sunny position outdoors till Oct. Forcine: 
Place plants in temp. 55° to 65° in Jan. Water moderately. Transfer 
plants to sunny position outdoors after flowering. Propagate by 
cuttings of young shoots, 2 to 3 in. long, inserted in sandy soil under 
hell-glass or hand-light or in cold frame in summer; layering shoots 
in Oct, 
SPECIES CULTIVATED: R. kerrioides, white, April, 10 to 15 ft., Japan. 
Rhopalostylis.—Ord, Palmacew. Stove palms. Orn, foliage. 
Leaves, feather-shaped, green. First introduced 1827. 
CULTURE: Compost, equal parts loam, peat, leaf-mould & sand. 
Position, pots or tubs in moist shady greenhouse or conservatory. Pot, 
367 : 
7O 
