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Nomenclature
Hypericum adpressum W.P.C.Barton
Nomenclature
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Section: sect. MyriandraSubsection: subsect. Suturosperma
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Synonyms: 7
DIAGNOSTIC DESCRIPTION
Perennial herb, sometimes woody or spongy at base, (0.2-)0.4-0.8 m tall, erect from creeping rhizomatous base, unbranched until fruit matures or with 1(?2) pairs of branches below inflorescence and often axillary leaf clusters. Stems red-brown, 2-lined and ancipitous above, terete below. Leaves sessile, (15)30-75(-90) x 2-10 mm, narrowly oblong or linear to narrowly elliptic or lanceolate, with margin revolute, paler but not glaucous beneath, thinly coriaceous, persistent, apex acute, base narrowly cuneate to parallel, slightly decurrent; venation: c. 14 pairs main laterals, with subsidiaries almost equally strong and dense tertiary reticulation, midrib markedly prominent, main laterals less so; laminar glands dense, medium-sized. Inflorescence c. 13-60-flowered regular dichasia, without accessory flowers or subsidiary branches, rounded- corymbiform; pedicels 0.5-1.5 mm long; bracts 2-6 mm long, linear-lanceolate. Flowers c. 10-15 mm in diam., buds ellipsoid. Sepals 5, (2-)4-7 x 1-1.5 mm, persistent, subequal, ovate-lanceo- late, acute, margin recurved, often deflexed, basal veins 3, unbranched. Petals 5, bright? yellow, 6-8 x c. 3 mm, 1.5-2 x sepals, obovate-oblanceolate, with apiculus obsolete. Stamens c. 60-80, longest 6-7 mm, 0.85-0.9 x petals, persistent. Ovary 3-merous, 3-3.5 x 2-2.5 mm, ovoid, not lobed, acute, 1-locular with slightly intruding placentae; styles 3, (l-)2.5-3 mm long, c. 0.7-0.85 x ovary, remaining appressed in fruit. Capsule 3.5-6 x 2-4 mm, ellipsoid to ovoid-ellipsoid, obtuse to rounded. Seeds blackish brown, 0.6-0.7 mm long, slightly carinate; testa scalariform.