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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Primotrapa gen. nov., an extinct transitional genus bridging the evolutionary gap between Lythraceae and Trapoideae, from the early Miocene of North China

Fig. 3

Floral cups and immature fruits of Primotrapa weichangensis from the Miocene of Weichang, China. a A laterally preserved, immature fruit showing the floral cup with three sepals and three intersepal appendages alternately arranged. PEPB70591 (Holotype). b-c Another two laterally preserved, immature fruits. PEPB70592–70593. d-f Abscised immature fruits showing the ribbed surface. PEPB70596–70598. g-j Laterally, distally, or basally preserved floral cups showing four sepals and four intersepal appendages alternately arranged at the rim of the cup. PEPB70601–70604. k-n Micro-CT-scanned, 3-D reconstruction of a floral cup (k) showing the front and back views of the floral cup (l), and the longitudinal sections (m, n). PEPB70605

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