File:Contributions from the Botanical Laboratory, vol. 12 (1934) (20695234741).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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Phlox subulata although there may be exceptions in both regions. On December 10, 1745, John Bar- tram wrote to Peter Collinson in Eng- land that he was sending him *'one sod of the fine creeping spring Lychnis," by which he meant the plant subse- quently named by Linnaeus Phlox subulata. This is the earliest record we have of the introduction of the species into horticulture, a date which Farrer suggested "ought in- deed be kept as a horticultural fes- tival." It persisted in Collinson's garden, and was catalogued by him as "Lychnidea ser^pervirens flore rubro"—the evergreen false-lychnis with red flowers. From there it found its way into other gardens, but apparently received no particular at- tention for over a hundred years. The first color-form to be picked out from its numerous variants and specially propagated was white with rose-purple eye-striae, the leaves be- ing unusually broad; this was orig- inated by J. G. Nelson in 1852 and was duly named horticultural variety nelsoni. Many others have since been developed, the most popular in the United States being hort. var. grandi- flora. This has a rather raucous ma- genta corolla-color, but is valued be- cause of the relatively large size and abundance of its flowers. Hort var. atropiirpurea has a more intense and redder color, but is less widely used. Some of the horticultural varieties produce viable seed, but others are sterile clones which must be propa- gated vegetatively. No attempt will be made to list them here, but a brief discussion may be given of the status of certain "specific" names often used in connection with this Phlox. australis. A geographic variety, ranging from western North Caro- lina to southern Ohio, characterized by glandular hairs on the inflores- cence-foliage. brittonii. Originally described as a distinct species, but scarcely more than a variety, occurring in the Ap- palachians of Virginia and West Vir- July, 1935 THE NATIONAL HORTICULTURAL MAGAZINE 211 4-ki il^ •-Ay W. 1%*- r*.i
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Phlox nivalis ,^>. ginia, and extending down the Poto- mac valley to the Fall-line. Differs from variety australis in having a somewhat smaller corolla of lavender to white color. ciliata. The northern geographic va- riety, with the hairs normally gland- less. The plants sent by Bartram to Collinson belonged here, and so ac- cordingly do the horticultural varie- ties which arose from that original source. nivalis. Sometimes applied to pure white forms of P. subulata, but these are preferably termed horticultural variety alba, since the name nivalis really belongs to the species discussed next. setacea. This name was applied by Linnaeus to a depauperate fragment of P. subulata, and has no taxonomic standing. It is sometimes used in British horticultural writings in place of the accepted name for this species, and again for P. nivalis, but should be discarded. stcllaria. Although proposed by Gray for a variety of another species (P. bifida), this name has come to be used for horticultural varieties of P. subulata with more or less star-like corollas. Such dual significance for a name is undesirable. Phlox nivalis Loddiges. Trailing Phlox Because of similarity in foliage, this Phlox has been confused with P. sub- ulata, but they differ so markedly in their reproductive organs that they are to be regarded as distinct species. In P. subulata the stamens are so long that the anthers of several of them are visible at the corolla-tube orifice, and the style is also elongate. In the plant here under consideration even the longest stamen is normally deep within the corolla-tube, and the style is so short that the stigmas scarcely reach the level of the sepal-tips. The corolla, too, tends to be larger and paler in color, and its lobes, more shal- lowly notched. The name nivalis,

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