Last year, during a short botanizing expedition to the eastern-most counties of Long Island, in company with Miss Elizabeth C. Hall., librarian of the New York Botanical Garden, and Mr. J. Harry Logan of the Torrey Botanical Club, the writer came upon a considerable colony of a puzzling little crucifer. This plant was growing in great numbers in a sandy field at Smithtown, at a considerable distance from any human habitation. On first glance, it greatly resembled Draba verna variously known as white-blow, shad-flower, nailwort, or vernal whitlow-grass. Close examination, however, soon revealed that it was not this species, nor, in fact, even a member of the genus Draba. On returning to New York, the writer turned the specimen over to Mr. E. J.. Alexander, curator of the Local Herbarium at the New York Botanical Garden, and he identified it as Teesdalia nudicaulis (L.) R. Br. [synonyms: Iberis nudicaulis L., Teesdalia iberis P. DC.].