Cucurbitaciphyllum, Manchester, 2014

Manchester, Steven R., 2014, Revisions To Roland Brown’S North American Paleocene Flora, Acta Musei Nationalis Pragae Series B 70 (3 - 4), pp. 153-210 : 169

Cucurbitaciphyllum gen. nov.

D i a g n o s i s. Leaves palmately trilobed, petiole narrow, not swollen at junction with lamina. Lamina base cordate, lobe apices acute; lobal sinuses rounded, margins of the three main lobes with smaller lobes and teeth. Venation actinodromous with a primary vein directed into each major lobe. Secondary veins pinnate, camptodromous to semicraspedodromous, sometimes interconnecting to form an intramarginal vein in lower portion of the lobes. Lower surface of leaf covered by closely spaced trichomes.

T y p e s p e c i e s. Cucurbitaciphyllum lobatum (KNOW-

LTON) comb. nov.

E t y m o l o g y. The generic name combines the roots, Cucurbitac-, referring to the family Cucurbitaceae , which has similar leaves among extant genera, and -phyllon (Gr. = leaf).