ENCYCLOPEDIA OF GARDENING. 
Plant, March or April. Propagate by seeds sown 1-16 in, deep in sandy 
peat in cold frame in March or Aug.; division of plant in March, _ 
SPECIES CULTIVATED: ©. Matthiola, red, April, 1 ft., Europe; Matthiola 
grandifiora, purple, April, 18 in.; pubens, magenta purple, May, 6 in., Transylvania. 
Coryanthes (Helmet-orchid)Ord. Orchidacez. Stove epi- 
phytal orchids. First introduced 1829. co 
CULTURE: Compost, equal parts peat & sphagnum moss. Position, 
baskets suspended from roof of stove. Re-basket in March. Water 
freely April to Sept., very little afterwards. Temp., April to Aug. 65° 
to 85°; Aug. to April 50° to 65°. Growing season, April to Aug. 
Resting period, Aug. to April. Flowers appear on new growth. Pro- 
pagate by division of plant in March. 
SPECIES OULTIVATED: OC. macrantha, green, purple, yellow and crimson, 
June, 1 ft., Venezuela; maculata, yellow and purple, June, 1 ft., Trop. America; 
speciosa, yellow and green, March, 1 ft. 
Corydalis (Fumitory)—Ord. Fumariacee. Hardy biennial & 
perennial herbs. 
CULTURE: Soil, ordinary, good. Position, well-drained sunny 
borders, ledges of rockeries, fissures in old walls. Plant perennial & 
biennial species in March. Propagate annual species by seeds sown 
in April where plants are to flower; biennials by seed sown in boxes 
of light soil in cold frame or outdoors in April; perennials by seed simi- 
lar to biennials, transplanting seedlings to permanent positions when 
large enough to handle; also by division of the plants after flowering; 
bulbous species by offsets in March. 
PERENNIAL SPEOIES: O. bulbosa (Syn. Solida), purple, April, 6 in., Europe; 
lutea, yellow, May, 1 ft., Europe; lutea alba, white; nobilis, yellow, May, 1 ft., 
Siberia; tuberosa (Syn. Cava), purple, March, 6 in., Europe; ledebouriana, purple, 
summer, 1 ft., Altai Mountains. 
pre hae SPECIES: ©. glauca, scarlet, violet and orange, summer, 1 ft., 
‘au ~ 
Corylopsis.—Ord. Hamamelidacex. Hardy deciduous flowering 
shrub. First introduced 1864. 
CULTURE: Soil, sandy loam. Position, open, moist shrubbery in 
8. England ; south walls in other parts of country. Plant, Oct. to Feb. 
Propagate by layering shoots in Oct. 
SPECIES CULTIVATED: ©. himalayana, yellow, March, 20 ft., Himalayas; 
paucifiors, yellow, Feb., 6 ft., Japan; spicata, yellow, Feb., 6 ft., Japan. 
Corylus (Hazel; Cob-nut; Filbert)—Ord. Corylacez. Hardy deci- 
duous shrubs. Orn. foliage & nut-bearing. lowers, male—grey, 
female—crimson; March, April. Nuts ripe in Oct. 
, CULTURE: Soil, rich loam, well manured & deeply trenched. Posi- 
tion, open, sunny. Plant cob & hazel nuts 10 ft. apart each way, & 
filberts 15 ft. apart, in Oct. Prune end of March, cutting away shoots 
not less than two years old & shortening those of previous year’s growth 
about one-third. Train each tree to have six main branches only. 
Gather nuts when husk becomes brown. Hang branches of hazel cat- 
kins (male flowers) in filbert bushes in Feb., if filbert catkins are scarce, 
to ensure fertilisation. Propagate by seeds (nuts) 2in. deep in Oct. 
in open garden. trans eel seedlings two years afterwards: suckers 
removed from base of old plants replanted in Oct.; layering strong 
young shoots in Nov.; grafting on seedlings of Constantinople Nut 
in March to form standards, half standards, & dwarf standards. 
_Marxet Currure: Soil, deep loam, well-drained, stony. Posi- 
tion, uplands. Plant 13 ft. apart each way. Trees to plant an acre, 
243. Manures, shoddy, wool waste, or fish at rate of 2 to 3 tons per 
acre. Apply in winter. Cost of manure, £3 per ton. Prune as above. 
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