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Nomenclature
Hypericum cohaerens N. Robson
Nomenclature
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Genus: HypericumSection: sect. Ascyreia
- holotype: IBSC - S. S. Sun - F. 51002
DIAGNOSTIC DESCRIPTION
Shrub, with branches spreading ? Stems red, 4-lined and ancipitous when young, soon terete; internodes 15-23 mm long, shorter than leaves; bark reddish-brown. Leaves petiolate, with petiole 1.5-2 mm long; lamina 25-50 x 12-23 mm, oblong to elliptic, acute to rounded, margin plane, base cuneate to subangustate, paler beneath, not glaucous ?, chartaceous; venation: 2-3 pairs main laterals, all or the upper sometimes uniting with midrib branches to form ± arched inframarginal vein (i.e. brochidodromous), with tertiary reticulum very dense, not very conspicuous; laminar glands very small, punctiform; ventral glands absent. Inflorescence 1-7-flowered, from apical node, loosely subcorymbiform; pedicels 8-11 mm long; bracts linear, caducous. Flowers 35-50 mm in diam., stellate; buds ovoid, subacuminate. Sepals 9-12 x 1.5-3 mm, slightly imbricate or open, equal, spreading in bud and young fruit, narrowly lanceolate to linear, acute, margin entire; midrib distinct, one other pair of veins sometimes visible beneath; laminar glands linear. Petals golden yellow ?, not tinged red, spreading, 16-25 x 8-13 mm, c. 2 x sepals, oblanceolate, with apiculus subterminal, acute, margin entire, eglandular ? Stamen fascicles each with c. 30 stamens, longest 16-20 mm, long (or probably longer), c. 0.8-0.95 x petals; anthers yellow. Ovary 4-5 x 3-4 mm, ovoid to subglobose; styles 10-12 mm long, c. 2.2-2.5 x ovary, at first up to half coherent but becoming free, straight; stigmas small. Capsule and seeds unknown.