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Nomenclature
Hypericum dyeri Rehder
Nomenclature
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Genus: HypericumSection: sect. Ascyreia
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Synonyms: 7
- lectotype: K-W - Blinkworth - Wallich 4817A
- isolectotype: BM - Blinkworth - Wallich 4817A
DIAGNOSTIC DESCRIPTION
Shrub 0-6-1-2 m tall, with branches ± widely spreading. Stems orange to yellow-brown, 2-4-lined and ancipitous when young, soon terete or persistently 2- lined; internodes 10-30(-55) mm, shorter than or very rarely exceeding leaves; bark grey-brown. Leaves petiolate, with petiole 1-2 mm long; lamina 10-50(-60) x 5-24(-35) mm, oblong-lanceolate or lanceolate to ovate, acute to apiculate-obtuse or rounded, margin plane, base cuneate to rounded, discolorous, markedly glaucous beneath, chartaceous to papyraceous; venation: 2-3 pairs main laterals, the upper sometimes forming a ± prominent partial inframarginal vein, with midrib pinnately branched, the branches forming a rudimentary reticulum, tertiary reticulum otherwise very rarely visible; laminar glands short streaks and dots; ventral glands dense. Inflorescence l-31(or more)-flowered, from 1-2-nodes, subcorymbiform to broadly pyramidal, without or with 1 pair of branches below; pedicels 6- 11(- 16) mm long; bracts foliaceous to linear-lanceolate, gradually smaller distally, persistent. Flowers (15-)20-30(-35) mm in diam., stellate; buds ovoid, subacute to rounded. Sepals 4-12 x l-2-5(-3) mm, free, imbricate at base, equal, spreading in bud and fruit, narrowly oblong-lanceolate to linear, acute, with margin entire; midrib visible, veins not prominent; laminar glands interrupted-linear, c. 6-10. Petals bright yellow, not tinged red, spreading, 10-18 x 3-7(-9) mm, c. 1.5-2.5 x sepals, oblanceolate, with apiculus subterminal and rounded or absent; margin entire, eglandular. Stamen fascicles each with c. 20 stamens, longest 8-12(-15) mm long, c. 0.7-0.85 x petals; anthers bright yellow. Ovary 3.5-5 x 2.8-4 mm, broadly ovoid to subglobose; styles 4-7 mm long, 1.5-2 x ovary, free, suberect or gradually divergent, spreading at apex; stigmas capitate. Capsule 7-10 x 5-7 mm, subglobose. Seeds dark reddish- brown, c. 0-9 mm long, narrowly cylindric, not or narrowly carinate, shallowly linear-foveolate.