期刊
PLANT SYSTEMATICS AND EVOLUTION
卷 227, 期 1-2, 页码 63-73出版社
SPRINGER WIEN
DOI: 10.1007/s006060170057
关键词
Scrophulariaceae; idioblasts; Kranz anatomy; leaf anatomy; nodules; oil cavities; paraveinal mesophyll
Leaf samples of mostly herbarium specimens (237 species of 172 general were cleared. Internal secretory structures of large size or unusual shape were detected and observed. Selected samples were processed into resin and sectioned for light microscopy or prepared for scanning electron microscopy. Adding results from two earlier publications, our survey includes 365 species from 174 genera. Five types of internal secretory structure, mostly unknown previously in the traditional Scrophulariaceae, occur in only nine genera: 1) single-celled subepidermal idioblasts, empty at maturity, in Scrophularia and Verbascum (Lersten and Curtis 1997), 2) 2-16 (or morel-celled nodules, with fibrous contents, in mid-mesophyll strata of Graderia and Radamaea 3) epithelium-lined oil cavities in Leucophyllum (Lersten and Beaman 1998) and Capraria, 4) Kranz-type enlarged bundle sheath in Anticharis, and 5) paraveinal mesophyll (PVM) in Picria and Bonnaya.
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