. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1428 PRESTONIA PRIMULA PRESTdNIA (probably named after Charles Preston, a correspondent of Kay). Apocyndcea. About 30 spe- cies of tall climbers from tropical America. P. venosa is a tender foliage plant once offered in America as JJchites niitajis. Prestonia differs from Echites in hav- ing a callous ring insi
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 1428 PRESTONIA PRIMULA PRESTdNIA (probably named after Charles Preston, a correspondent of Kay). Apocyndcea. About 30 spe- cies of tall climbers from tropical America. P. venosa is a tender foliage plant once offered in America as JJchites niitajis. Prestonia differs from Echites in hav- ing a callous ring inside the corolla-tube at the throat and often 5 linear, erect scales below. Other generic characters: calyx with 5 entire or lacerated scales inside at the base: corolla salver-shaped, the tube constricted at the throat; lobes 5: ovary with 2 distinct carpels; seeds comose at the apex. The following points are adapted from Lowe's Beauti- ful Leaved Plants: P. venosa is cultivated for the net- work of crimson veins on its foliage. The plant blooms rarely, and its fls. are far inferior to Echites or DipUi- denia. When properly cultivated it makes a charming subject, but if neglected it is as worthless as a weed. It can hardly be propagated by cuttings; the fleshy roots are cut into pieces 1-2 in. long. The plant de- mands a temperature of 85° F,, with an atmosphere as moist as possible. Foliage should never be syringed. Young plants should be raised every season, as older plants become unsightly. The plant was formerly con- siderably growD, being trained to a balloon-shaped wire trellis. Needs warmth to bring out the markings. ven6sa» Mottet [Eclntes nutans, Anders. ffce?nadic- tijOH venosnm, Lindl.). Lvs. opposite, ovate-lanceo- late, villous beneath: fls. yellow, in pedunculate pani- cles: corolla-lobes roundish, wavy. St. Vincent in the West ludieSo 2473. Lowe 58. T;;y^ jy;^ PKICKLY ASH, Xantlioxylum. P. Comfrey, Sym- phyfum asperrimum. P. Pear, OpuHtla. P. Poppy* Argemon
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