ENCYCLOPEDIA OF GARDENING. 
position outdoors in spring or autumn; stickers removed from parent 
plant & planted Oct. or Nov.; cuttings of ripened shoots in cold frame 
in autumn; layering in autumn. 
SPECIES CULTIVATED: N. cerasiformis, white, spring, 6 to 10 ft., California. 
Nycterinia.—See Zaluzianksia. ; 
Nymphzea (Water-Lily).—Ord. Nymphacew. Stove & hardy 
aquatic tuberous-rooted perennials. Evergreen & deciduous. 
CULTURE OF STOVE SPECIES: Two parts rich turfy loam & one 
part well-decayed manure. Position, large pots or tubs immersed 
8 to 12in. below surface of water in tanks fully exposed to light. 
Plant, Feb. to April. Temp. of atmosphere, 65° to 75°, March to 
Sept. ; 50° to 60°, Sept. to March. Temp. of water, 65° to 75°, March 
ie a 55° to 65°, Sept. to March. Repot annually in Feb. or 
arch, 
CULTURE OF HARDY SPECIES: Compost, two parts strong rich 
loam, one part well-decayed manure. Position, open sunny ponds or 
lakes. Depth of water, 2to 3ft. Plant, March to Oct. Methods of 
planting: (1) Place plant in small wicker basket containing above com- 
post, & lower to the bottom of pond or lake. (2) Inclose roots with soil 
& large stone in piece of canvas or matting, tie securely & immerse as 
above. (3) Place large hillock or mound of compost at bottom of pond 
when dry plant tubers in centre, afterwards submerging with water. 
Propagate stove species by seeds sown fin. deep in pots of rich soil 
immersed in water heated to a temp. of 65° to 75°, March or April. 
Hardy species by seeds sown 3 in. deep in rich soil in shallow basket & 
immersed in ponds or lakes in spring; division of tubers or rhizomes, 
March or April. 
STOVE SPECIES: N. ampla, white, July, W. Indies; blanda, white, July, 8S. 
America; gigantea, blue, summer, Australia; gracilis, white, summer, Mexico; 
Lotus (Egyptian Lotus), red or white, summer, Trop. Asia and Africa; stellata, 
lue, summer, Trop. Africa; ; stellata zanzibarensis, blue. 
HARDY SPECIES: N. alba (Common White Water-Lily), white, summer, Europe 
(Britain); alba candidissima, white; alba rosea, rose; odorata, white and red, 
summer, N. America; odorata rosea, pink; odorata sulphurea, yellow; tetragona 
(Syn. Pygmza), white, June, Himalayas; tetragona helveola, yellow; tuberosa, 
white, July, N. America; tuberosa plena, double. 
HARDY HYBRID WATER-LILIES: Marliacea albida, white; M. carnea, pink 
or white; M. chromatella, primrose and rose; M. flammea, rose and carmine; 
M. ignea, rose and orange-red; M. rosea, rosy pink; Laydekeri lilacea, pink and 
crimson; L. fulgens, crimson-magenta; L. lucida, vermilion; L. purpurata, rosy 
crimson; and L. rosea, carmine. 
Nyssa (Tupelo Tree).—Ord. Cornacex. Hardy deciduous trees. 
Grown for the beauty of their rich scarlet tinted foliage in August. 
CULTURE: Soil, ordinary. Position, margins of streams, lakes, 
etc. Plant in autumn. Propagate by layering in autumn. 
SPECIES OULTIVATED: N. aquatica, white, May, 40 to 50 ft., U. States: 
sylvatica, white, 30 to 40 ft., N. America. 
Oak (Quercus robur).—See Quercus. 
Oak Fern (Polypodium dryopteris).—See Polypodium. 
Oak-leaved Geranium (Pelargonium quercifolium).—See 
Pelargonium. 
Ochna.—Ord. Ochnacex. Stove evergreen flowering shrubs. 
First introduced 1816. Flowers succeeded by black and crimson globu- 
lar fruits. 
CULTURE: Compost, equal parts fibrous loam, peat, and sand. Posi- 
tion, well-drained pots in sunny light part of stove. Pot, Feb. or 
March. Prune into shape, Feb. Water freely March to Oct., mode- 
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