금강비비추
| 과 | 백합과(Liliaceae) |
|---|---|
| 속 | 비비추속(Hosta) |
| 국명 | 금강비비추(한반도특산식물) |
| 학명 | Hosta clausa var. geumgangensis M. Kim & H. Jo |
| 개요 | Hosta clausa Nakai var. geumgangensis M. Kim & H. Jo, var. nov. (Figs. 1?3). TYPE: KOREA. Jeonbuk Province: Jinan-gun, Jinan-eup, along Geumgang River, 24 Aug 2015, H. Jo JF82402 (holotype, JNU; isotypes, JNU, KH, KB). Korean name: Geum-gang-bi-bi-chu 금강비비추. Diagnosis: Hosta clausa Nakai var. geumgangensis can be distinguished from its related taxa by having seedless capsule (versus a capsule with seeds), green-colored petioles (versus green with purple spot), short pistils (versus long pistils), and short narrow part of perianth tube (versus long narrow part of perianth tube) (Fig. 4). Herbs perennial, glabrous. Rhizome stout, usually with underground stolon. Leaves 7?11, basal; petiole green, 4.7?22.0 cm long, winged at least in distal part; blades 5.9?20.5 cm × 1.4?5.0 cm, oblong to narrow elliptical, glabrous, apex acute, veins 3?6 pairs. Inflorescence spike-like raceme, elongate, 58?103 cm × 2.5?6.0 mm, 14?45-flowered; scape smooth; bracts pale yellow or green at flowering, ovate to broad ovate or elliptical, 6?9 mm × 4?6 mm, membranous; pedicel purple, 5?10 mm long. Flowers opening during the day, odorless; perianth purple, bell-shaped, 2.8?3.9 cm × 2.0?3.5 cm; narrow parts of the perianth grooved, 1.0?1.2 cm long; wide parts of the perianth 1.2?1.4 cm long; lobes 6, 1.4?1.7 cm × 0.7?1.0 cm, opened. Stamens 6, equal, 4.0?4.5 cm long, slightly exerted; filament white; anther purple, 3.4?4.1 mm × 1.6?1.8 mm. Pistil 4.2?4.8 cm long, style whitish purple; distance between pistil and stamen 0.1? 0.5 cm. Capsule seedless. Flowering: Early Aug to mid Sep. Distribution: Southern Korea (Jinan-gun, Jeollabuk-do). Etymology: The infraspecific epithet was derived from its type locality (Geumgang River, Jinan-eup, Jinan-gun, Jeonbuk Province, Korea). Habitat: Large population of Hosta clausa var. geumgangensis is found at sandy soil area of Geumgang river. This new variety grows at river edges dominated by Phragmites communis and Phragmites japonica. This species also grows with other herbaceous species dominated by Lythrum anceps, Oenothera biennis, Acer tataricum subsp. ginnala, and Humulus japonicus. |
| 근연종* | Key to Hosta clausa var. geumgangensis and its related taxa 1. Flower more than 10 cm long, flagrant, opening at night ································································· H. plantaginea 1. Flower less than 7 cm long, odorless, opening during the day. 2. Scape ridged. 3. Racemes congested, head-like ········· H. capitata 3. Racemes elongate, spike-like ··············· H. minor 2. Scape smooth. 4. Flower funnel-shape. Stamens 3 short and 3 long ······························································· H. yingeri 4. Flower bell-shape. Stamens 6 equal. 5. Rhizome without underground stolon. Anthers yellow-color ···································· H. jonesii 5. Rhizome with underground stolon. Anthers purple-color. 6. Flowers closed ······· H. clausa var. clausa 6. Flowers opened. 7. Petiole green with purple spot. Perianth 3.8?5.8 cm long; narrow parts of the perianth tube 1.6?2.2 cm long. Capsule with seeds ······ H. clausa var. normalis 7. Petiole green without purple spot. Perianth 2.8?3.9 cm long; narrow parts of the perianth tube 1.0?1.2 cm long. Capsule seedless ····································· ············· H. clausa var. geumgangensis |
| 참고문헌 | https://doi.org/10.11110/kjpt.2016.46.3.306 |
