English: Image from page 147 of "American gardening" (1892)

Title: American gardening

Identifier: americangardeni131892newy

Year: 1892 (1890s)

Authors:

Subjects: Gardening; Horticulture

Publisher: New York : Rural Pub. Co

Contributing Library: Smithsonian Libraries

Digitizing Sponsor: Biodiversity Heritage Library

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124 CURRENT GARDEN LORE. return-pipe near the boiler and thus the water will be impelled into a more rapid circulation, which can be increased or retarded at will by increasing or diminish- ing the speed of the pumps. The pressure system will be adopted whereby the temoerature of the water can

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New Conservatory at Lincoln Park, Chicago. be increased to 250° if required. The radiating surfaces in the houses will be cut into independent sections, each controlled by automatic heat-regulating devices. The houses are constructed entirely of stone, iron and glass; trusses, rafters and purlins of wrought iron. The bars are of the Hellewell patent (steel and zinc) and the glass rough ribbed plate. The construction of a fernery alongside of the conservatory, 90x6c and 25 feet high, is deterred until another season. The house will be of stone walls with glass roof and will be lower than the palm-house by six feet and will have masses of rock filled in a picturesque fashion along its walls, and with running water, cascades and ferns planted among the rocks will simulate the fern-turfed rocky dells of nature.—American Florist. The Evening Primrose.—Of all the plants seen last summer, the evening primrose {Enothera biennis) inter- ested me the most, and I gathered many specimens and watched the flowersopen from evening to evening. Until my acquaintance with the evening primrose I never saw aflower in the very act of opening, and truly it was well worth the careful watching bestowed upon it. One specimen opened at least one flower regularly every evening, and sometimes two or three, for nearly a week. The first one I watched opened very quickly, coming into full bloom in about five minutes after once begin- ning to split. First the bud split the least little bit at the sides; then the slits gradually widened and the petals inside began to expand ; then the points of the sepals separated from each other in two pairs, each pair tightly fastened together. It seemed almost as if the flower was breathing—panting to be free. Very soon after the sepals parted they sprang back suddenly with a jerk, and slowly settled into their reflexed position, again splitting as they did so. After the first night the opera- EvENiNG Primrose.t'on ^^^s not nearly so rapid, but took usually from a half hour to an hour and a half or two hours.—Popular Science Monthly.