Histopathology of Seed-Borne Infections - Applied Research Center ...

Structure of Seeds 65stystypmerA BcarpCper scl epi scendembperendFbsvbviDEperendvbvihvivbGFHFIGURE 3.9 Structure of cremocarp in Apiaceae. A to D, Coriandrum sativum. A, B, Entireand splitted cremocarp showing parts. C, D, Ts and Ls cremocarp respectively. E, F, Foeniculumvulgare. E, Ls part of immature mericarp wall with sclerotic pitted cells in pericarp.F, Ts cremocarp showing vascular bundles in ridges and vittae in alternate positions. Thecarpophore has two vascular bundles and four vittae, two on each side of vascular bundles.G, H, Daucus carota, outline diagram of cremocarp and Ts of mericarp respectively. Notethat the vittae occur above each vascular bundle and also in alternate positions. (Abbreviations:carp, carpophore; emb, embryo; end, endosperm; epi, inner epidermis of pericarp; fbs, fiberstrands; h, hair; mer, mericarp; per, pericarp; sc, seed coat; scl, sclerenchymatous pitted cells;sty, style; styp, stylopodium; vb, vascular bundle; vi, vittae.) (E, From Gupta, S.C. 1964.Phytomorphology 14: 530–547. With permission.)3.4.7 PEDALIACEAE (FIGURE 3.6C)(Singh, 1960; Vaughan, 1970)External: Seeds small-medium, flattish ovate, beaked; black, brown or white;surface smooth or weakly reticulate with faint marginal line, hilum and micropyleinconspicuous.