ENOYCLOPZDIA Of GARDENING. 
SPECIES CULTIVATED: P. cattleianum, white, June, fruits fig-like, 10 to 15 ft., 
Brazil; Guava pomiferum (Red Guava), white, June, fruits apple-like, 10 ft.; and 
Guava pyriferum (Common Guava), white, fruits pear-like, Trop. America. 
Psoralea (Scurvy Pea).—Ord. Leguminosae. Greenhouse ever- 
green flowering shrubs. First introduced 1690. 2 
CULTURE: Compost, equal parts fibrous loam, peat, & silver sand. 
Position, pots in sunny airy greenhouse. Pot, Feb. or March. Prune 
into shape, Feb. Water freely, April to Sept., moderately after- 
wards. Good drainage essential. No stimulants or shade required. 
Temp., March to Sept. 55° to 65°; Sept. to March 40° to 50°. Pro- 
pagate by cuttings of firm shoots, 2 to 3in. long, inserted in pots 
halt filled with drainage, remainder layer of moss & pure sand, placed 
under bell-glass in shady part of greenhouse, May or June. 
SPECIES CULTIVATED: P. aculeata, blue and white, summer, 3 ft., S. Africa; 
pinnata, blue, summer, 4 ft., S. Africa; arborea, blue, June, 6 ft., S. Africa. 
Ptelea (Hop Tree)—Ord, Rutacew. Hardy deciduous trees. 
Flowering & orn. foliage. First introduced 1704. Leaves, trifoliate, 
green, or variegated with yellow. 
CULTURE: Soil, ordinary. Position, open shrubberies, plantations, 
or woods. Plant, Nov. to eb. Prune into shape, Dec. to Feb. Pro- 
pagate by seeds sown }in. deep in sunny position outdoors in March” 
or April; layering shoots any time. 
SPECIES CULTIVATED: P. trifoliata, green, May, 4 to 8 ft., N. America; 
trifoliata aurea, young leaves golden. 
Pteris (Bracken; Brake-fern; Spider Fern).—Ord. Filices, Stove, 
greenhouse, & hardy ferns. Evergreen and deciduous. Young shoots 
of bracken, gathered when 6in. long, may be cooked and eaten like 
Asparagus, 
CULLURE OF HARDY SPECIES: Soil, ordizary. Position, shady 
borders or woods. Plant, April. 
CULTURE OF STOVE SPECIES: Compost, equal parts loam, leaf- 
mould, peat, & sand. Position, pots, beds, or rockeries in shady part 
of stove. Pot or plant, Feb. or March. Water abundantly, April to 
Sept., moderately afterwards. Temp., March to Sept. 70° to 80°; 
Sept. to March 60° to 70°. 
CULTURE OF GREENHOUSE SPECIES: Compost, as above. Pot, 
March or April. Position, pots, beds, or rockery in shady part of 
house, Water freely, March to Oct.; moderately Oct. to March. 
Temp., March to Sept., 55° to 65°; Sept. to March, 50° to 55°. Pro- 
pagate by spores sown on fine sandy peat in well-drained pans in temp. 
x0° any time; dwarf species by division of plants, Oct. or April. 
HARDY SPECIES: P. aquilina (Brake or Bracken Fern), 2 to 4 ft., Britain, etc. 
Several varicties. 
STOVE SPECIES: P. aspericaulis, 6 to 8 in., India; aspericaulis tricolor, 
fronds green, white and red; palmata nobilis, 1 ft., Brazil; quadriaurata argyrea, 
fronds with white centres, 1 ft., Tropics. 
GREENHOUSE SPECIES: P. Bausei, hybrid; cretica and its varieties albo-lincata, 
Mayi, major and Wimsettii, Tropics; ensiformis, and its varieties cristata, Regina 
and Victoriw, Tropics; longifolia, Japan; scaberula, New Zealand; serrulato 
(Spider Fern), and its variety cristata, China, Japan, etc.; tremula (Trembling 
ined and its varieties Smithieana, elegans and variegata, Australia. See also 
Ptychosperma (Australian Feather Palm).—Ord, Palmacee. 
Stove palms. Orn. foliage. Leaves, feather-shaped, green, very 
graceful. First introduced 1868. 
CULTURE: Compost, equal parts loam & leaf-mould, half a part 
silver sand. Position, shady part of stove, warm greenhouse, or con- 
servatory; pots or tubs. Pot, Feb. or March. Water copiously, 
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