• Korean Journal of Plant Taxonomy
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• v.41 no.1
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• pp.16-34
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• 2011

Scirpus L. s.l. of Cyperaceae has been regarded as a monophyletic group, but the taxa of Scirpus s.l. were rearranged into the five independent genera in recent molecular phylogenetic research: Bolboschoenus (Asch.) Palla, Schoenoplectus (Rchb.) Palla, Schoenoplectiella Lye, Scirpus L., and Trichophorum Pers. In this study, we examined the morphological characteristics and presented the delineation of the five genera of Scirpus s.l., including 21 taxa from South Korea. As a result of our investigation and analysis of domestic collections and those from abroad, the each taxon could be identified using key characteristics of the rhizome features; a cross-section of culm; the degree of development and the width of leaves; the shapes of the membranous region of leaf sheath; and the shapes and size of inflorescence, bract, floral scale, and achene. These major characteristics are illustrated and artificial keys are suggested in this study. In addition, we suggest a new combination for an unrecorded taxon of Schoenoplectiella that was discovered in Gangwon-do, Goseong-gun and give it the Korean name, as 'a-do-song-i-go-raeng-i'.

• Korean Journal of Plant Taxonomy
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• v.46 no.2
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• pp.267-271
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• 2016

A newly recorded species, Schoenoplectiella ${\times}$uzenensis (Ohwi ex T. Koyama) Hayasaka, was found in Chosan Lake, Gosu-myeon, Gochang-gun, Jeollabuk-do, Korea. Schoenoplectiella ${\times}$uzenensis differs from its related species in having short rhizomes and 1 to 3 spikelets showing inflorescence. Schoenoplectiella triangulata has very short rhizomes and 520 spikelets with inflorescence. Schoenoplectiella lineolata has long creeping rhizomes and 1 spikelet showing inflorescence. We propose the new Korean name of 'Go-Chang-Go-Rang-Ei' based on its initial collection site. A description, line drawing, color photographs, table, and a species key of Korean Schoenoplectiella are provided for species identification.

• Korean Journal of Plant Taxonomy
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• v.35 no.4
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• pp.313-335
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• 2005

Many plants take up soluble silica from the soil, and they deposit in plant tissues. Silica bodies are most commonly found in the leaf epidermis. Silica body is important factor in growth and development of plant. It help to maintain rigidity in stem and linear leaves, and its content may be correlated with resistance to fungal disease. In this study, several morphologically distinctive forms of silica bodies on Cyperaceae in Korea are recognized, which are eventually classified into two groups. Silica body type of first group (Rhynchospora, Fuirena, Scleria, Carex, Eriophorum) is A-type, which is conical in shape. Silica body type of second group (Cyperus, Scirpus, Eleocharis, Fimbristylis, Kyllinga, Bulbostylis, Lipocarpha) is B-type, which is conical in shape with numerous satellite body. These types are consistent enough to use as characters in taxonomic studies within genus. Silica body type may be associated with habitat: the species in dry region have A-type, whereas the species in wet region have B-type. These results suggested that shapes and presence or absence of silica body might be valuable to systematic analysis.