Published January 6, 2022 | Version v1
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Fig. 2 in A Jurassic flower bud from China

  • 1. College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
  • 2. Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Palaeontology and Palaeoanthropology, CAS Centre for Excellence in Life and Palaeoenvironment, Chinese Academy of Sciences, Beijing 100044, China
  • 3. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and CAS Centre for Excellence in Life and Palaeoenvironment, Chinese Academy of Sciences, Nanjing 210008, China

Description

Fig. 2. Florigerminis jurassica gen. et sp. nov and its details. Stereomicroscopy. (a) Holotype of Florigerminis jurassica, showing the physically connected parts. Two (one missing to the left) fruits and a flower bud are on the branch terminal. Arrows point to the nodes on the branch. PB21737. The scale bar is 10 mm. (b) Close-up of the branch terminal showing a physical connection between two fruit pedicels (1 and 2) and a pedicel of flower bud (3). The scale bar is 2 mm. (c) Close-up of the fruit in (a). Note the mesocarp (m), endocarp (e), three persistent foliar parts visible (arrows) and connected pedicel (lower right). The scale bar is 2 mm. (d) Longitudinal fine striations on the branch surface. The scale bar is 0.25 mm. (e) The flower bud in (b). Note a foliar part at the bottom (arrow). The scale bar is 1 mm. (f) Close-up of (e) showing overlapping distinct tepals (1–4). The scale bar is 0.2 mm. (g) Close-up of (e) showing distinct overlapping tepals in the top portion of the flower bud. The scale bar is 0.5 mm. (h) Nodes (black arrows) with transversal wrinkles and helically arranged decurrent leaf scars (white arrows) on the branch. The scale bar is 1 mm. (i) Pedicels of the fruits (1 and 2) and flower bud (3). The scale bar is 1 mm. (j) Close-up of the rectangular area in (i), showing a pedicel (arrow) embedded in the sediments. The scale bar is 0.5 mm. (k) Tip of the fruit in (c), showing apical invagination (black line), mesocarp (m) and endocarp (e). The scale bar is 1 mm. (l) Three persistent foliar parts (black line) at the fruit bottom in (c). The scale bar is 1 mm.

Notes

Published as part of Cui, Da-Fang, Hou, Yemao, Yin, Pengfei & Wang, Xin, 2022, A Jurassic flower bud from China, pp. 1-13 in Geological Society, London, Special Publications 521 on page 3, DOI: 10.1144/SP521-2021-122, http://zenodo.org/record/5883880

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