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Hypericum collenettiae N. Robson
Section: sect. AdenosepalumSubsection: subsect. Caprifolia
Perennial herb or subshrub, c. 0.15-0.2 m tall, erect from woody taproot or decumbent at base and rooting, often with short ascending branches below inflorescence, the whole plant up to the inflores- cence densely white-puberulous. Stems green to purplish red, terete, internodes mostly shorter than leaves. Leaves sessile, markedly tetrastichous; lamina 7.5-c. 13 x 1.5-4 mm, narrowly oblong to (upper) triangular-lanceolate, concolorous, chartaceous, appearing greyish blue but not glaucous, plane, spreading; apex obtuse, margin plane, entire, base rounded to subcordate; venation: 2 pairs of laterals curved-ascending from lower c. 0.25 of midrib, tertiary reticulation not seen; laminar glands pale, dense, unequal, not prominent; intramarginal to submarginal glands black, rather sparse. Inflorescence (l-)5-c. 11 -flowered, from 1(2) nodes, subcorymbiform to rounded-pyramidal when flowers numerous, rather lax, without lower flowering branches; pedicels 3-7 mm in fruit, with prominent reddish glands; bracts not auriculate; bracteoles linear-lanceolate, with margin black-glandular-ciliate. Flowers c. 25 mm in diam.; buds ellipsoid, acute. Sepals 3.5-4 x 0.8-1.2 mm, equal, narrowly lanceolate, acute to subaristate, irregularly glandular-ciliate or with prominent sessile glands; veins 5, outer branched; laminar glands pale, linear to striiform and (toward margins) black, punctiform to striiform; marginal and apical glands black, smaller. Petals golden yellow, not red-tinged, 9-10(7-12) x c. 4.5-5 mm, c. 2.5 x sepals, oblong-obovate, truncate, with apiculus obtuse, short; laminar glands distal, pale, shortly striiform to punctiform and black, elongate-punctiform, toward apex, marginal or inframarginal glands black, few, elongate-punctiform. Stamens c. 40, clearly 3-fascicled, longest 5-6 mm, c. 0.6 x petals; anther gland black. Ovary c. 2 x 1.5 mm, ovoid-pyramidal; styles 3, c. 4 mm long, c. 2 x ovary, widely spreading. Capsule 4.5-5 x 3-4 mm, ovoid-cylindric, exceeding sepals, enclosed by petals twisting together. Seeds dark red-brown, 0.7 mm long; testa finely scalariform-reticulate.