ENCYCLOPHDIA OF GARDENING. 
pagate by seeds sown 1 in. deep in light soil in shady position outdoors 
in Oct., Nov., April or March.; cuttings of roots inserted 21in. deep in 
similar position in Oct. or March. 
SPECIES CULTIVATED: G. canadensis (Kentucky Coffee Tree), white, May to 
July, 30 to 60 ft., N. America; chinensis (Soap Tree), white, June, 20 ft., China. 
Gymnogramme (Gold Fern; Silver Fern). — Ord. Filices. 
Stove & greenhouse evergreen ferns. First introduced 1790. Fronds 
finely divided, upper sides green, under sides covered with white or 
yellow powder. 
CULTURE: Compost, one part fibrous peat, one part leaf-mould & 
loam, one part silver sand, charcoal, & coarsely ground bones. Posi- 
tion, erect species in well-drained pots; drooping species in hanging 
baskets. Pot, Feb. or March. Water moderately Oct. to Feb., freely 
afterwards. Syringing or shading not necessary. Temp., stove 
species, Sept. to March 55° to 65°, March to Sept. 65° to 75°; green- 
house species, Sept. to March 45° to 50°, March to Sept. 55° to 65°. 
Propagate by spores sown on surface of fine sandy peat under bell-glass 
in temp. 75° to 85° any time; division of plants at potting time; fronds 
furnished with plantlets pegged on to surface of sandy peat under 
bell-glass in temp. 70° to 80° at all times. 
STOVE SPECIES: G. calomelanos, fronds dull green above, creamy white below, 
W. Indies, and the following varieties, chrysophylla (Gold Fern), fronds golden 
yellow, and peruviana areyrophylls (Silver Fern), fronds silvery; decomposita, 
fronds yellow, hybrid; schizophylla, fronds silvery, pretty for baskets, Jamaica; 
sulphurea, fronds golden, West Indies; tartarea (Syn. G. dealbata), fronds silvery, 
Trop. America. 
GREENHOUSE SPECIES: G. japonica, fronds not powdered, Japan. 
Gymnolomia.—Ord. Composite. Hardy annual. Useful plant 
for cutting. 
CULTURE: Soil, ordinary. Position, sunny borders. Sow seeds in 
patches outdoors during April. Thin out seedlings later on to a tew 
inches apart. 
SPECIES CULTIVATED: G. multiflora, yellow, Aug., 18 in., Mexico. 
Gymnothrix.—sSee Pennisetum. 
Gynerium.—See Cortaderia. 
Gynura.—oOrd. Composite. Stove perennials with ornamental 
foliage. Leaves purple-tinted. 
CULTURE: Compost, equal parts peat, loam, leaf-mould, & sand. 
Position, pots in partial shade. Pot in March. Water freely March 
to Oct., moderately afterwards. Temp., March to Oct., 70° to 80°; 
Oct. to March, 55° to 65°. Propagate by cuttings in spring. 
SPECIES CULTIVATED: G. aurantiaca, 2 ft., Java; bicolor, 3 ft., Mol 
sarmentosa, 6 to 8 ft. 
Gypsophila (Chalk-plant)—Ord. Caryophyllacew. Hardy peren- 
nial & annual herbs. First introduced 1759. Flowers valuable for 
cutting for floral decoration. 
CULTURE: Soil, ordinary, freely mixed with old mortar or brick 
rubbish. Position, dryish well-drained borders for erect species; sunny 
rockeries & margins of borders for dwarf species. Plant, Oct., Nov., 
March or April. Cut down flower stems in Oct. Propagate annual 
species by seeds sown in April on surface of soil where plants are to 
flower, thinning seedlings out 3 to 6 in. apart when lin. high; perennial 
species by seeds sown in sunny position outdoors in April, transplanting 
seedlings to permanent position in June, July, or Aug.; division of 
lants in Oct. or April. 
ANNUAL SPECIES: G. elegans, white, June to Oct., 12 to 18 in 
viscosa, rose, fragrant, summer, 12 to 18 in., Asia Minor, 
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+» Caucasus; 
