. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. % ? )i '^ mi ^ Fig. 1. Phlox amplifolia. One mile northeast of Willets, Jackson County, North ""Ti Fig. 2. Phlox amplifolia. In cultivation; originally from Indiana. 14. Phlox amplifolia Britton. Broad-leaf Phlox. Plate 2. History.—Among the names regarded as synonyms of P. paniculata Linne by Gray^ in his revision of the Polemonia- ceae was included ^^P. glandulosa, Shuttleworth, coll. Rugel, pubescent form.'' So little description was thus given that the name lacks validity, but it may have represent
. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. % ? )i '^ mi ^ Fig. 1. Phlox amplifolia. One mile northeast of Willets, Jackson County, North ""Ti Fig. 2. Phlox amplifolia. In cultivation; originally from Indiana. 14. Phlox amplifolia Britton. Broad-leaf Phlox. Plate 2. History.—Among the names regarded as synonyms of P. paniculata Linne by Gray^ in his revision of the Polemonia- ceae was included ^^P. glandulosa, Shuttleworth, coll. Rugel, pubescent form.'' So little description was thus given that the name lacks validity, but it may have represented a mem- ber of the Paniculatae which diifers from the typical species of this section in several important respects. Mohr^ collected the same Phlox in Alabama, considering it a ** well-marked variety,'' and identifying it with P. paniculata var. acumi- nata (Pursh) Chapman. His specimens, preserved in the U. S. National Herbarium, do not, however, agree with Pursh's original description. Britton,^ on the other hand, recognized it to be an independent species, and gave it the appropriate name P. amplifolia. Not considering the publication of a description necessary to validate a name, Brand* adopted that ascribed by Gray to Shuttleworth, and gave the date of its original use as 1842, presumably on the basis of an annotated sheet bearing a Rugel specimen. Finally, Robinson and Fernald^ returned to Gray's view that the Phlox under discussion is identical with P. paniculata. Here the two are regarded as sufficiently differ- ent to deserve independent status, and Britton's name as the only acceptable one. Geography.—Although herbaria do not contain many speci- mens of this Phlox, enough have been seen to show its range to center about the Interior Low Plateau province in Tennes- see, and to extend from east-central Alabama to eastern Mis- souri, southern Indiana, and western North Carolina. The Fall Line has formed a barrier to its migration southward, and it has been unable,
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