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Hypericum castellanoi N. Robson
Section: sect. BrathysSubsection: subsect. Phellotes
Shrub or shrublet 0.15-1 m tall, erect to ascending, with branches ascending, lateral, rooting at the base. Stems orange-brown, 4-angled when young, eventually 2-lined to subterete, cortex eventually exfoliating in strips; internodes 3-6 mm long. Leaves sessile, spreading or outcurving from base, twisting, not tetrastichous, persistent; lamina 12-17 x 0.7-1.2 mm, linear, incurved at first, becoming plane, not cucullate or carinate, concolorous, not glaucous, chartaceous; apex acute, base parallel-sided, not sheathing, free; basal vein impressed beneath, unbranched; laminar glands almost 2-ranked, visible on both sides, not or scarcely impressed. Inflorescence 1 -flowered, terminal and on 1-4 short lateral branches from c. 3-5 nodes below; pedicel 1-4 mm long, incrassate upwards; upper leaves foliose. Flowers c. 8 mm in diam.?, stellate. Sepals 3.5-5 x 0.5-0.6 mm, linear, acute; veins 3, unbranched, not or slightly prominent. Petals bright ? yellow, 6-7 x 1.5-2 mm, c. 1.5 x sepals, narrowly oblanceolate, apiculus apiculate; glands linear, interrupted distally. Stamens c. 20-24, longest 3-4 mm long, c. 0.5 x petals. Ovary 1.5-2.5 x 1-1.5 mm, narrowly ovoid-ellipsoid; styles 3(4), 2-3.5 mm long, c. 1.4 x ovary, proximally suberect, distally spreading; stigmas broadly capitate. Capsule and seeds not seen.