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Nomenclature
Hypericum nokoense Ohwi
Nomenclature
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Genus: HypericumSection: sect. Humifusoideum
- holotype: KYO - Ohwi - 2951
- paratype: KYO - Ohwi - 2958
- paratype: K - Ohwi - 2958
- paratype: Tl - Ohwi - 2958
Media
DIAGNOSTIC DESCRIPTION
Perennial herb 0.05-0.1 m tall (sometimes longer and straggling), suberect to ascending from creeping, branching and rooting base, with stems caespitose, sometimes mat-forming, unbranched or branched above. Stems 2-4-lined or sometimes becoming almost terete, eglandular; internodes 2.4-6 mm, usually longer than leaves. Leaves sessile or with petiole up to 1 mm; lamina 4-12x1.5-6 mm, ovate (below inflorescence) to elliptic or narrowly oblong or obovate, markedly glaucous and sometimes minutely papillose beneath, subcoriaceous; apex rounded, margin entire, base cuneate-angustate; venation: 2-3 pairs of main laterals from lower 1/3 to 2/5 of midrib, tertiary reticulation obscure; laminar glands pale and sometimes black, punctiform, dense to sparse; intramarginal glands black, dense. Inflorescence l-5(-7)-flowered, from apical node, without lower branches, subcorymbose; pedicels 1-1.5 mm; bracts and bracteoles 3-3.5 mm long, entire or with prominent marginal glands. Flowers 12-18 mm in diam., stellate; buds ovoid to ellipsoid, acute. Sepals 5, equal, erect in bud and fruit, 3-5 x 0.8-1.2 mm, lanceolate to narrowly oblong, acute to subacuminate, entire; veins 3-5, unbranched; laminar glands pale and black, linear to striiform; marginal glands black, irregular, submarginal. Petals 5, bright yellow, not tinged red in bud, 7-11 x 2-3(-4.5) mm, c. 3 x sepals, obovate or oblong-lanceolate to lanceolate, laminar glands pale and usually black, linear to punctiform, marginal glands absent. Stamens c. 40-43, obscurely '3'-fascicled, longest 5-8 mm, c. 0.7 x petals; anther gland black. Ovary 3-locular, c. 2 x 1 mm, ovoid?; styles 3, free, 4-6 mm, 2.5-3 x ovary, spreading from base; stigmas not enlarged. Capsule 6-7 x c. 4 mm, c. 1.5-2 x sepals, narrowly ovoid; valves longitudinally vittate. Seeds not seen.