Canrightiopsis E.M.Friis, G.W.Grimm, M.M.Mendes et K.R.Pedersen

Plant Fossil Names Registry Number: PFN001990

Act LSID: urn:lsid:plantfossilnames.org:act:1990

Authors: E. M. Friis, G. W. Grimm, M. M. Mendes & K. R. Pedersen

Rank: genus

Reference: Friis, E. M., Grimm, G. W., Mendes, M. M. & Pedersen, K. R. (2015): Canrightiopsis, a new Early Cretaceous fossil with Clavatipollenites-type pollen bridge the gap between extinct Canrightia and extant Chloranthaceae. – Grana 54(3): 184–212.

Page of description: 189

Type

Original diagnosis/description

Flower bisexual. Perianth lacking. Androecium of three stamens. Stamens restricted to one side of the ovary, borne about one third to two thirds up the ovary. Stamens leaving distinct scars on the surface of the fruits. Associated pollen of Clavatipollenites-type; pollen monocolpate with long, extended aperture; pollen wall semitectate, reticulate-columellate; reticulum heterobrochate; columellae long, irregularly distributed; colpus membrane verrucate-rugulate; colpus margin indistinct. Ovary semi-inferior inferred from the position of the stamen scars; unilocular with a single pendant ovule. Stigma not or only slightly raised, indistinct or hemispherical. Ovule orthotropous, bitegmic, endotestal; endotesta thick with one layer of palisade-shaped crystal cells with fibrous infillings; single layer of larger, thin-walled cells outside endotesta; tegmen of several layers of thin-walled cells. Fruit single-seeded berry. Fruit wall with resin bodies or cavities from presumed ethereal oil cells that on the outer surface of fruit wall are seen as stomata-like structures. Embryo in mature seeds tiny.

Etymology

From opsis (Greek: appearance) to indicate close similarity in morphological appearance to fossil fruits of Canrightia.