ENCYCLOPEDIA OF GARDENING. 
Black Dahlia (Dahlia Zimipani)—See Dahlia. 
Black Hellebore (Helleborus niger).—See Helleborus. 
Blacking Plant (Hibiscus rosa-sinensis).—Sce Hibiscus. 
Black Iris pierrecie undulata).—See Ferraria. 
Black Lily (Lilium Camtschatcense).—See Lilium. 
Black Maidenhair Fern (Adiantum capillus-veneris).—See 
Adiantum. 
Black Martagon Lily (Lilium dalmaticum).—See Lilium. 
Black Pine (Pinus Laricio nigricans).—See Pinus. 
Black Poplar (Populus nigra).—See Populus. 
Black Spleenwort (Asplenium adiatum-nigrum). — See 
Asplenium. 
Black Spruce (Picea nigra).—See Picea. 
Black Thorn (Prunus spinosa).—See Prunus. 
Bladder Fern (Cystopteris fragilis) —See Cystopteris. 
Bladder Herb (Physalis Alkekengi).—See Physalis. 
Bladder Nut (Staphylea pinnata).—See Staphylea. 
Bladder Senna (Colutea arborescens).—See Colutea. 
Bladder Wort (Utricularia montana).—See Utricularia. 
Blzeberry (Vaccinium myrtillus).—See Vaccinium. 
Blandfordia.—Ord. Liliacee. Greenhouse bulbous plants. 
Flowering. Evergreen. Deciduous. First introduced 1803. 
CULTURE: Compost, equal parts peat, loam & silver or river sand. 
Pot, Oct. Good drainage, firm potting & moderate size pots essential. 
Water freely May to Aug., moderately Aug. to Oct. & Feb. to May, 
none at other times. Temp., Oct. to feb. 40° to 50°; Feb. to April 50° 
to 55°; April to Oct. 55° to 65°. Propagate by offsets or division of old 
lants at potting time. 
SPECIES CULTIVATED: B. aurea, golden yellow, summer, 1 to 2 ft.; Australia; 
Cunninghamii, crimson, July, 2 ft., Australia; flammea, yellow, June, 18 in., 
Australia; marginata, crimson, summer, 2 ft., Australia; nobilis, orange, July, 
2 ft., Australia. 
Blanket Flower (Gaillardia grandiflora).—See Gaillardia. 
Blazing Star (Liatris elegans).—See Liatris. 
Blechnum (Brazilian Tree Fern).—Ord. Filices. Stove & green- 
house ferns. Evergreen. First introduced 1691. 
CULTURE: Compost, equal parts loam, peat, leaf-mould, & sand. 
Pot, Feb. or March. Position, shady. Water abundantly April to Sept., 
moderately afterwards. Temp., stove species, Sept. to March 60 to 70°, 
March to Sept. 70° to 80°; greenhouse, Sept. to March 50° to 55°, March 
to Sept. 55° to 65°. Propagate by spores sown on fine sandy peat in 
well-drained pans, in temp. 80°, at any time, 
STOVE SPECIES CULTIVATED: B. longifolium, 1 to 2 ft., West Indies; 
occidentale, 1 to 2 ft., West Indies; unilaterale, 6 to 12 in., Trop. America. 
GREENHOUSE SPECIES CULTIVATED: B.‘braziliense, 2 to 3 ft., Brazil and 
Peru; braziliense corcovadense; cartilagineum, 1 to 2 ft., Australia; hastatum, 
1 to 2 ft., S. America; Lanceola, 6 to 12 ins., Trop. America. 
Bleeding Heart (Dicentra canadensis).—See Dicentra. 
Bleeding Nun (Cyclamen europeum).—See Cyclamen. 
Blessed Thistle.—Sce Carbenia & Silybum. 
Bletia.—Ord. Orchidacew. Stove, hardy, terrestial, and epiphy- 
tal orchids. Deciduous. First introduced 1733. 
CULTURE OF STOVE SPECIES: Compost, equal parts loam & leaf- 
mould. Pot, March. Position, pots with 2in. of drainage in each. 
Water freely March to Aug., moderately Aug. to Oct., very little after- 
wards. Temp., March to Sept. 65° to 75°; Sept. to March 60° to 65°. 
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