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Nomenclature
Hypericum venustum Fenzl
Nomenclature
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Genus: HypericumSection: sect. Taeniocarpium
- isotype: BM - Kotschy - 100
- isotype: E - Kotschy - 100
- isotype: G - Kotschy - 100
- isotype: K - Kotschy - 100
- isotype: U - Kotschy - 100
- holotype: W - Kotschy - 100
DIAGNOSTIC DESCRIPTION
Perennial herb, 0.25–0.75 m tall, glabrous, erect from creeping and rooting base, branching at all nodes but only after flowering. Stems 2-lined, with occasional red glands, especially on lines, not prominent; internodes 15–60 mm, exceeding leaves. Leaves sessile, not glaucous; lamina 13–32 × 6–17 mm, ovate to elliptic-ovate, concolorous, chartaceous, apex rounded, margin, plane, base truncate to cordate-amplexicaul, with 3 pairs of lateral veins basal and from lower ¼ of midrib; laminar glands small, some slightly elongate, rather dense, without apical black gland; intramarginal glands pale, spaced. Inflorescence ∞-flowered, from (2)3–5 nodes, cylindric or interrupted spicate to narrowly pyramidal, wholly or partly dense, 30–145 mm long, with lateral cymules (1)3–5-flowered, without or very rarely with one pair of flowering branches below; bracts and bracteoles ovate, entire to glandular-ciliate. Flowers 20–25 mm in diam., petals erect after flowering; buds ellipsoid. Sepals equal to subequal, free, not imbricate, 4–6 × 1.5–2 mm, narrowly oblong to narrowly elliptic, acute to obtuse; veins 5, slightly prominent; margin with obconic black glands on cilia; laminar glands pale, linear or interrupted-striiform. Petals pale yellow, tinged red, (8–)10–14 × 3.3–6 mm, c. 2.5 × sepals, oblong-lanceolate; marginal glands absent; laminar glands pale, linear to striiform. Stamens c. 20–22, longest c. 8–10 mm, filaments yellow, not red-tinged; anthers yellow. Ovary 2 × 1.5 mm, ovoid-pyramidal; styles 5– 5.5 mm, c.. 2.5 × ovary. Capsule 5–6 × 4 mm, narrowly ovoid-ellipsoid. Seeds minutely rugulose (fide Stefanoff, 1932, 1933).