HNCYCLOPZDIA OF GARDENING. 
Xanthosoma. — Ord, Aroidew Stove perennial herbs. Orn. 
foliage. First introduced 1710. Leaves, arrow-head shaped, green or 
variegated. 
CULTURE: Compost, equal parts turfy loam, peat, leaf-mould, de- 
cayed manure, & silver sand. Position, well-drained pots in shade. 
Pot moderately firm in pots just large enough to take tubers in Feb. 
or March; transfer to larger pots in April or May. Water moderately, 
Feb. to April & Sept. to Nov.; freely, April to Sept.; keep quite dry, 
Nov. to Feb. Temp., Feb. to Sept. 70° to 80°; Re t. to Nov. 65° to 
75°; Nov. to Feb. 55° to 65°. Propagate by dividing the tubers in 
Feb. or March. 
SPECIES CULTIVATED: X. Barilletii, Trop. America; Lindenii (Syn. Phyllote- 
nium Lindenii), Colombia; violaceum, W. Indies. 
Xeranthemum (Immortelle; Annual Everlasting).—Ord. 
Composite. Hardy annuals. First introduced 1570. Flowers, single 
& double; suitable for winter decoration. 
CULTURE: Soil, ordinary. Position, sunny beds or borders. Sow 
seeds in light soil in March, in temp. 55° to 65°, planting out in 
June, or in open ground end of April. Gather flowers for winter 
decoration directly they are fully expanded. 
SPECIES CULTIVATED: X. annuum, purple, ete., summer, 2 ft., S. Europe. 
xXerophyllum (Turkey’s Beard).—Ord. Liliacew. Hardy peren- 
nial aquatic herb. First introduced 1765. 
CULTURE: Soil, moist sandy peat. Position, boggy gardens or 
margins of ponds or lakes. Plant, March or April. Propagate by 
seeds sown in moist peaty soil in April where required to grow, or 
by division of roots in March or April. 
SPECIES CULTIVATED: X. asphodeloides, white, May, 1 ft., N, America. 
Xylobium.—Ord. Orchidacez. Stove epiphytal orchids. First 
introduced 1826. 
CULTURE: Compost, equal parts fibry peat & chopped sphagnum 
moss, with little sand & charcoal. Position, well-drained pots, pans, 
or baskets in light part of greenhouse. Pot when new growth com- 
mences. Water deciduous species freely from time new growth begins 
until Nov., then occasionally; evergreen species freely from March to 
Nov.; moderately, Nov. to March. Syringe once or twice daily whilst 
making growth. Ventilate freely, May to Sept. Temp., April to 
Oct. 55° to 65°; Oct. to April 45° to 50°. Growing period, Feb. 
to March; resting period, Oct. to Feb. Plants may be grown in sit- 
ting-room or cool conservatory when in flower. Propagate by division 
of pseudo-bulbs immediately after flowering. 
SPECIES OULTIVATED: X. discolor, yellow and white, spring, W. Indies; 
elongatum, yellow, white, and brown, spring, W. Indies; squalens, yellow, white, 
and purple, spring, Brazil. 
Yam (Dioscorea sativa)—See Dioscorea. 
Yarrow.—See Achillea, 
Yellow Asphodel (Asphodeline lutea).—See Asphodeline. 
Yellow Ox-Eye.—See Bupthalmum. 
Yellow Star of Bethlehem (Gagea lutea).—See Gagea. 
Yellow Water-Lily (Nuphar advena).—See Nuphar. 
Yellow Wood Anemone (Anemone ranunculoides). — See 
Anemone. 
Yerba Mansa (Anemonopsis macrophylla).—See Anemonopsis. 
Yew.—See Taxus, 
Yucca (Adam's Needle; Mound Lily; Spanish Bayonet).—Ord, 
462 
