Figure 3 | Scientific Reports

Figure 3

From: The Core Eudicot Boom Registered in Myanmar Amber

Figure 3

Detailed view of Lijinganthus revoluta gen. et sp. nov. embedded in a Myanmar amber. (a) Abaxial view of the distal portion of Petal 4, showing the revolute form and the margins (white triangles) of the petal. Scale bar = 0.1 mm. (b) Abaxial view of the distal portion of Petal 1, showing the margins (white triangles) of revolute petal. Scale bar = 0.5 mm. (ce) Top (c,d) and adaxial (e) views of the dorsifixed bisporangiate anthers on the termini of slender filaments (white triangles). Scale bar = 0.1 mm. (f) Detailed view of a sepal (white line). Scale bar = 0.1 mm. (g) Micro-CT virtual section of the gynoecium, showing the conical profile of the ovary, nectary disk (arrows), inconspicuous style, and petals (white triangles). The inset shows the cross section of the ovary near the tip. (h) Micro-CT virtual view showing relationship among the pedicel, sepals (white triangles), petals, stamen, nectary disk (arrows), conical ovary, and inconspicuous style in the centre. (i) Approximately 70 tricolpate pollen grains closely associated with the flower. Scale bar = 0.1 mm. (jl) Different views of tricolpate pollen grains, enlarged from those marked as 1–3, respectively, in (i). (j) polar view; (k,l) equatorial views. Scale bar = 5 μm. (m) Numerous pollen grains adjacent to one of the petals of the flower. Scale bar = 20 μm.