File:Contributions from the Botanical Laboratory, vol. 12 (1934) (20500497108).jpg

Title: Contributions from the Botanical Laboratory, vol. 12
Identifier: contributionsfro12univ (find matches)
Year: 1934 (1930s)
Authors: University of Pennsylvania. Botanical Laboratory; University of Pennsylvania. Morris Arboretum
Subjects: Botany; Botany
Publisher: Philadelphia : (s. n. )
Contributing Library: Penn State University
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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224 THE NATIONAL HORTICULTURAL MAGAZINE July, 1935 July, 1935 THE NATIONAL HORTICULTURAL MAGAZINE 225
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Phlox glaberrima tergrades with Phlox Carolina on the one hand and with P. maculata—the next to be taken up—on the other. From the former it is best distin- guished by its more numerous nodes, narrower leaves, and shorter calyx; it is also developed chiefly at lower altitudes. The stem of P. maculata has still more nodes, and its inflores- cence tends to be elongate-conical in- stead of corymbose; its range is on the whole more northern. The first published reference to this Phlox was that of Plukenet in 1705, and he indicated it to have reached him from Florida; to this day English horticulturists term it Phlox florid ana, although as already pointed out this name properly be- longs to an entirely different plant. About the same time Clayton found it in Virginia, and sent seeds or living material to Gronovius, who in turn contributed it to Clififord's garden. Here it was seen by Linnaeus, and when he came to divide the vegetable kingdom into genera in 1737, he based the genus Phlox on this plant. What appears to be Clayton's original lo- cality has recently been rediscovered in Chesterfield County, Virginia. In Europe it has been continuously cul- tivated since these early days, but in America it is almost unknown. No horticultural varietal designa- tions seem to have come into use in connection with this species; that the application to it of the species name floridana is quite erroneous has al- ready been pointed out. The term glahcrrinm occasionally gets applied to glabrous phases of other species of Phlox, but should be used only for the narrow-leaved long-styled plant here discussed. Phlox maculata. Meadow Phlox. The dispersal-center of this species appears to have been located in the Ohio valley, perhaps near the bound- ary of Kentucky, Ohio, and West Virginia. From there it has spread south into North Carolina and Ten-

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