KOBUSKI, STUDIES IN THE THEACEAE, VII STUDIES IN THE THEACEAE, VII THE AMERICAN SPECIES OF THE GENUS CLEYERA CLARENCE E. KOBUSKI THE genus Clevera, well known and generally accepted as a distinctgenus of the Theaceae by students of the Asiatic flora, has been includedunder the genus Eurya by workers on the flora of tropical America.This is probably due to the fact that Szyszylowicz, in the first editionof Engler and Prantl's Natirliche Pflanzanfamilien, treated Cleyera as asection of Eurya. Included here also as a section was the Americangenus, Freziera. Urban in 1896 protested vigorously at this treatment(and rightly so), feeling that all three should be retained as distinctgenera. However, Melchior, in the second edition of Engler and Prantl'swork, followed the lead of Szyszylowicz, if perhaps a little less strongly,and raised the questionable sections of Szyszylowicz to subgenera. The genus Eurya is confined to the eastern hemisphere and is char-acterized by dioecious flowers and by having the stamens uniseriate inmultiples of five, with glabrous anthers. The pedicels are quite short(usually less than 5 mm.) and decidedly curved. The petals are joinedfor approximately one-third of their entire length. Cleyera ranges through the tropics and subtropics of both hemispheresand can be distinguished from the genus Eurya by the hermaphroditicflowers and the uniseriate stamens, usually in multiples of five, oftenin odd numbers, with distinctly setose anthers. The pedicels are seldomless than 10 mm. long (often up to 20-25 mm.), sturdy and conspicuous.The petals are joined only lightly at the base. Clevera was first described by Thunberg in his Nov. Gen. 3: 69. 1783and was named in honor of the physician and botanist Andrew Cleyer,Dutch Director of Commerce during the years 1683 1688. Thunbergdescribed a single species, Clevera japonica, and based his descriptionon plants growing near Nagasaki, Japan. Unfortunately, this description was based upon two shrubs, as anexamination of the type indicates. Nearly filling the sheet is an amplespecimen of Cleyera japonica, while in the upper right corner is afragment or near fragment of Ternstroemia gymnanthera (W. & A.)Sprague. Later, realizing the discrepancy mentioned above, Thunberg1941]
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