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Fig. 2 | BMC Plant Biology

Fig. 2

From: Floral attractants in the black orchid Brasiliorchis schunkeana (Orchidaceae, Maxillariinae): clues for presumed sapromyophily and potential antimicrobial activity

Fig. 2

The transverse sections of the lip (TBO, light microscope) show a single layer of the epidermis and few collateral vascular bundles in the parenchyma. a lip base with flat callus. b epidermis, magnification of a. c lip—further part. d-e lip—beginning of raising callus. f rectangular shape of callus. g-h lip apex with papillae. Arrows indicate idioblasts with raphides. ab—abaxial (outer) surface, ad—adaxial (inner) surface, ca—callus, ie—inner epidermis, n—nucleus, pa—parenchyma, vb—vascular bundle

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