. 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. PILEA PILOCEREUS 1337 flowers are moncecious or dioecious, mostly very small and in axillary clusters; stamens 3-4, and the sepal- lobes in the staminate ils. of the same number; sepal- lobes of pistillate fls. 3, the ovary 3-angled and erect and bearing a sessile tufted stigma, "with 3 scale-like staminod
. 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. PILEA PILOCEREUS 1337 flowers are moncecious or dioecious, mostly very small and in axillary clusters; stamens 3-4, and the sepal- lobes in the staminate ils. of the same number; sepal- lobes of pistillate fls. 3, the ovary 3-angled and erect and bearing a sessile tufted stigma, "with 3 scale-like staminodiunis: fr. an akene, ovate or nearlj'orbicular, compressed, more or less invested in the perianth. There are 150 or more species of Pilea, one of which, P. pumila, is a small nettle-like plant growing in the , northern states. The Artillery Plants of the gardens are small branchy half-succulent herbs, usually grown in pots and allowed to reach a foot or so in height. The gracefully curving fronds of small ovate or obovate shining leaves are much prized. They are easy to grow, being propagated by cuttings. They thrive best when given an abun- dance of water. Sometimes they are used as edgings in orchid houses, to screen the pots with green, and they also tend to equalize the moisture conditions and thereby contribute to the welfare of the orchids. When the staminate flowers open, the pollen is usually discharged forcibly and visibly. If a plant is put in a sunny place when the pollen is ripe, it may set up a vigorous bombardment, particularly if the foliage is sprayed. (See I. H. 1, p. 6i (1854) for an account of this phenomenon.) The Artillery Plant is seen in nearly every greenhouse, but whether there is more than one species in common cultivation it is difiicult to deter- mine, for specific characters are difficult to draw. The Ivs., although opposite, are unequal. Usually the branchlets develop alternately on the branch. microph^lla, Liebm. (P. muscosa, Lindl. P. calli- tric
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