Asclepiadospermum C.Del Rio, Su et Z.K.Zhou in Del Rio, Wang, Liu, Liang, Spicer, Wu, Zhou & Su

Plant Fossil Names Registry Number: PFN000892

Act LSID: urn:lsid:plantfossilnames.org:act:892

Authors: C. Del Rio, T. Su & Z. K. Zhou

Rank: genus

Reference: Del Rio, C., Wang, T. X., Liu, J., Liang, S. Q., Spicer, R. A., Wu, F. X., Zhou, Z. K. & Su, T. (2020): Asclepiadospermum gen. nov., the earliest fossil record of Asclepiadoideae (Apocynaceae) from the early Eocene of central Qinghai-Tibetan Plateau, and its biogeographic implications. – American Journal of Botany 107(1): 126–138.

Page of description: 129

Type

Original diagnosis/description

Seed elliptical or pear-shaped, tapering rapidly toward a blunt to slightly round apex, and rounded at the base; an oval to elliptical central part surrounded by a margin; a straight median line corresponding to the trace left by the raphe runs from the apex to the center of the seed (Fig. 2: 5; Fig. 3: 2). Cells polygonal and irregularly arranged, but often arranged in rows at the margin (Fig. 2: 6, 7; Fig. 3: 4).

Etymology

Asclepiadospermum refers to the affinity of the seeds with the subfamily Asclepiadoideae.