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Nomenclature
Hypericum gleasonii N. Robson
Nomenclature
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Section: sect. BrathysSubsection: subsect. Brathys
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Synonyms: 1
- holotype: COL - Luteyn - 7653
- isotype: BM - Luteyn - 7653
- isotype: NY - Luteyn - 7653
DIAGNOSTIC DESCRIPTION
Shrub 0.15-1.5 m tall, erect, with branches strict, mostly pseudo-dichotomous, sometimes lateral. Stems yellow-brown, 4-lined when young, eventually terete, without epidermal emergences, cortex flaking irregularly; internodes 2-3 mm long. Leaves sessile, outcurved-ascending to imbricate-erect, tetrastichous, deciduous above base before fading; lamina 7-10 x 3-6 mm, oblanceolate to obovate, incurved, not cucullate or carinate, concolorous, not glaucous, subcoriaceous to coriaceous; apex acute or apiculate to obtuse, base angustate, sheathing, pairs united (at least when young) to form narrow interfoliar ridge; basal veins 5-7, flabellate, branching distally (sometimes obscurely), reticulation obscure beneath; laminar glands dense, not or slightly prominent, visible beneath; marginal glands usually secreting viscous clear or white resin. Inflorescence 1 -flowered usually with pseudo-dichotomous branches from 1st to 3rd node below and often with 1 or 2 lateral branches immediately below these, forming flower cluster when young; pedicel 3-6 mm long; upper leaves transitional. Flowers 20-40 mm in diam., stellate. Sepals 6-10 x 3-5 mm, elliptic to oblanceolate, acute to apiculate or obtuse; veins 9-15, sometimes dichotomising distally, with midrib scarcely prominent beneath; glands punctiform in upper third to two-thirds. Petals rich yellow, (always?) tinged red beneath, 12-20 x 10-11 mm, c. 2 x sepals, oblanceolate to obovate; apiculus obtuse to rounded; glands distally punctiform. Stamens 80-100, longest 6-10 mm long, c. 0.5 x petals. Ovary 3-4 x 2-3 mm, broadly ellipsoid to ovoid; styles 3, 4-6 mm long, 1.25-1.5 x ovary, free, suberect to spreading; stigmas broadly capitate. Capsule 5-6 X 5-6 mm, subglobose, shorter than sepals. Seeds not seen.