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Fig. 70. Orchid embryos 

 A-F, Epipactis pahistris. A-E, Early proembryo stages. F, Mature embryo. 

 G, H, J, Orchis latifoUa. G, Filamentous embryo, with suspensor and four-tiered 

 distal region; the earlier stages are generally comparable with those of Epipactis. 

 H, J, Embryos approaching maturity. K-N, Goodyera discolor. K, The basal cell 

 is already beginning to elongate. L, Filamentous young embryo. M, N, Nearly 

 mature embryos with greatly elongated suspensor (A-N, x 160). O-R, Epidendrum 

 ciliare (0-Q, x 490; R, x 265). S-X, Phalaenopsis grandiflora. S, T, Three- and 

 four-celled proembryos. U, V, Early development of embryonal tubes. W, Em- 

 bryonal tubes at optimum development. X, Mature embryo, with strophiole at base, 

 the latter being all that remains of the embryonal tubes (S-V, x 490; W, x 170; 

 X, X 400). (All from Johansen, redrawn from Treub.) 



