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Systematic application of seed morphology In Korean Orobanchaceae  

An, Beom-Cheol (Kyung Hee University Museum of Natural History)
Hong, Suk-Pyo (Lab. of Plant Systematics, Dept. of Biology & Institute of Basic Science, Kyung Hee University)
Publication Information
Korean Journal of Plant Taxonomy / v.33, no.4, 2003 , pp. 411-420 More about this Journal
Abstract
To examine the seed morphology in Korean Orobanchaceae, seeds of 5 species including 1 variety in five genera and one related taxon, Boschniakia himalaica Hook. f. & Thomson in Hook. f. from the Himalaya (7 taxa in total) were investigated by scanning electron microscopy (SEM). Two different seed types are recognized depending on three characters (e.g, .the seed size, seed coat structure and seed number per fruit). - Type I: size less than 1mm, seed coat structure reticulate and seed number per fruit more than ca. 1,000; Type II: size more than 1 mm, exotesta irregularly crested and seed number per fruit less than 1,000 (Lathraea japonicu Miq.). In Type I, three subtypes of exotesta internal surface pattern can also be classified; (1) Subtype Ia: reticulate - include irregularly striate (Ia') and deeply reticulate (Ia"), (2) Subtype Ib: foveolate, (3) Subtype Ic: smooth. Systematics application of the seed morphological data for the Korean Orobanchaceae is also briefly discussed.
Keywords
Seed morphology; SEM; parasitic plant; Lathraea; Phacellanthus; Orobanchaceae;
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