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. 2019 Dec 19;14(12):e0226551. doi: 10.1371/journal.pone.0226551

Fig 2. Morphology of control/passed diaspores and the histology of the seed coat.

Fig 2

A–D. Lychnis coronaria. A–B. Control seeds. A. General morphology. B. Cross-section through the seed coat. C–D. Passed seeds. C. Morphology; note abundant feces adhering to the seed coat. D. Anatomy of seed coat; note removed epicuticular wax compared to control seeds. E–I. Cuscuta lupuliformis. E–F. Control seeds. E. General morphology. F. Anatomy of seed coat. G–I. Passed seeds. G. Morphology. H. Large cracks (arrow) opened above the hilum area. I. Cross section through seed coat and endosperm showing the palisade layer left as the most exterior seed layer. J–M. Elatine hungarica. J–K. Control seeds. J. Morphology. K. Cross-section through the seed coat. L–M. Passed seeds are virtually identical to control seeds. L. General morphology; note feces adhering to pitted endotesta. M. Cross-section through seed coat. N–Q. Astragalus contortuplicatus. N–O. Control seeds. N. Seed morphology. O. Cross-section through seed coat and endosperm. P–Q. Passed seeds. P. General morphology. Q. Cross-section through seed coat. R–U. Glycyrrhiza echinata. R–S. Control seeds. R. General morphology. S. Anatomy of seed coat. T–U. Passed seeds. T. General morphology. U. Anatomy of seed coat. En = endosperm; Ex = exotesta; Per = perisperm; Pl = palisade layer; Teg = tegmen. Scale bars A, C, H, N, P, R, T = 0.5 mm; B, D, K, M, O, Q = 30 μm; E, G = 1 mm; I, F, S, U = 50 μm; J, L = 250 μm.