File:The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists (1901) (14591704240).jpg

Identifier: centurysupplemen1901nich (find matches)
Title: The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists
Year: 1901 (1900s)
Authors: Nicholson, George, 1847-1908
Subjects: Gardening Horticulture Plants, Ornamental
Publisher: Hyde Park, Mass. : Geo. T. King London : L. Upcott Gill
Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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dium foeniculaceum (which see). DIACRIUM (from dia, through, and alcris^ a point; inallusion to the sheaths on the stalk). Ord. Orchidese. Ofthis genus four species have been described: they are stove,epiphytal Orchids, natives of Mexico, Central America, andGuiana. Flowers showy, loosely racemose, shortly pedicel-late ; sepals sub-equal, free, spreading, rather thick, petaloid ;petals somewhat similar; Hp spreading from the base ofthe coltunn, nearly equalling the sepals, the lateral lobesspreading or reflexed, the disk elevated between the laterallobes, two-horned above ; column short and broad, slightlyincurved ; pollen masses four ; peduncle terminal, simple,with paleaceous sheaths. Leaves few, articulated with theshort sheaths. Stem fleshy, scarcely thickened into an 1900 Supplement—Recent Introductions, &c. 319 ,(. Diacrium—ron( IIIelongated psemlo-bnlb. Only one species calls for mention.For its snccessfnl cnltivation, it requires a light situation ina very moist stove.
Text Appearing After Image:
Fig. 342. PiicuriiM bicgrnltum. D. bicomntnm (two-homed). The correct name of the plantdescriheil i-n p. 512, Vol. I., as Epidt^ndnim hicorntttum. SeeFig. 342. SIADENIUM (from dis, twice, and aden, a gland ; inallnsion to the two glands at the base of the colnmn). Stn.Chasnanthe. Oed. Orchideae. A genus embracing only twoclosely-allied species of stove, epijiliytal Orchids, with fjmallflowers, natives of Peru and Para, and closely allied toCor.iparettin. D. Barieri (Stn. Chsenanthe Barl-eri) hasbeen introduced, but is probably not now in cnltivation. SIAMONS-BACK MOTH (Plufella cruciferarum).The larvae of thi^ Moth, which has an extremely widegeographical range, are very abundant some seasons, whenthey cause much damage to Cruciferous crops, but especiallyto Turnips and Cabbages. Dry weather is favourable to itsincrease ; while wet, showery weather has an oppositetendency. The Moth measures about Jin. in wing expanse.and is in evidence in April, and again in August andSeptember. The f

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