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Fig. 5 | BMC Plant Biology

Fig. 5

From: Gametophyte and embryonic ontogeny: understanding the reproductive calendar of Cypripedium japonicum Thunb. (Cypripedoideae, Orchidaceae), a lady’s slipper orchid endemic to East Asia

Fig. 5

Polyembryony and seed coat development in Cypripedium japonicum. a–c. Polyembryony in different stages. d-f. Transverse division of seed showing seed coat development. g. Longitudinal section of mature seed. Abbreviations: em, embryo; ext., exotesta; pems, proembryos; po, polar nuclei; tg, tegmen; tst, testa. Scale bars: a-e= 20 μm,  f= 10 μm, g = 30 μm

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BMC Plant Biology

ISSN: 1471-2229

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