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Nomenclature
sect. Campylosporus (Spach) R. Keller
Nomenclature
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Genus: Hypericum
DIAGNOSTIC DESCRIPTION
Perennial herbs, often shrubby at base, up to 25 mm tall, decumbent from taproot, with stems erect to prostrate, with stems, leaves and sepals softly whitish-pubescent to glabrous, branching lateral from upper and often from basal and intermediate nodes, often rooting, with dark (black) glands on petals and sometimes on leaves. Stems persistently 2-lined, eglandular. Leaves opposite, decussate, sessile, free, chartaceous; lamina entire with venation pinnate; laminar glands pale, punctiform, numerous; intramarginal glands pale and sometimes also black, subregularly spaced; ventral glands absent. Inflorescence 1–5-flowered, with branching dichasial/monochasial from terminal node, without or with flowering branches below; buds nodding. Flowers stellate, homostylous. Sepals 5, free, imbricate, persistent, erect in fruit, with margin entire; veins 7–9, laminar glands pale, linear to striiform; marginal glands absent. Petals 5, persistent, erect and individually twisting after flowering, without or rarely with very small subterminal apiculus; margin entire; laminar glands pale, linear to striiform; marginal glands black, subregular. Stamen fascicles ‘3’ (i.e. united 2+2+1) or occasionally ‘4’–5, persistent, with stamens totalling 60–100, often (always?) all united at base in a ring; filaments basally united; anther gland amber; pollen type X. Ovary with 3 axile placentae, each ∞-ovulate; styles 3 (rarely 4–5), divergent from discrete bases; stigma narrow. Capsule 3-valved, coriaceous, nodding, with valves faintly longitudinally vittate. Seeds cylindric, not carinate or appendiculate; testa reticulate-foveolate.