You are here
Nomenclature
Hypericum subsessile N. Robson
Nomenclature
-
Genus: HypericumSection: sect. Ascyreia
- holotype: BM - Forrest - 28133
- isotype: E - Forrest - 28133
DIAGNOSTIC DESCRIPTION
Shrub c. l m tall. Stems red, 4-angled and ancipitous when young, eventually terete; internodes 10-30 mm long, shorter than leaves; bark grey-brown. Leaves subsessile, with very short flat petiole; lamina 35-65 x 7-20 mm, narrowly elliptic, acute, margin plane, base cuneate, paler to glaucous beneath, subcoriaceous; venation: 3-4 pairs main laterals, branched, the midrib pinnately branched, with tertiary reticulum rather lax, not very conspicuous; laminar glands small dots and short streaks; ventral glands sparse to dense. Inflorescence 1-8-flowered, from 1(2) node(s); pedicel 8-20 mm long; bracts small, lanceolate to foliar, deciduous. Flowers 35-45 mm in diam., shallowly cyathiform; buds ovoid, acute. Sepals 10-18 x 4-10 mm, free, imbricate, unequal (foliaceous), outcurved in bud, reflexed in fruit, ovate to elliptic, acute or acuminate, with margin entire; midrib clearly visible, veins not prominent; laminar glands c. 8, basally linear, punctiform toward apex. Petals bright yellow, tinged red dorsally, slightly incurved, 17-20 x 9-11 mm, c. 2 x sepals, oblanceolate-obovate, with apiculus subterminal, acute; margin entire, eglandular. Stamen fascicles each with 40-60 stamens, longest 12-15 mm, long, c. 0-7 x petals; anthers bright yellow. Ovary 6-8 x 5-6 mm, ovoid-conic; styles 5-6 mm long, 0-8-0-9 x ovary, free, outcurved near apex; stigmas narrowly capitate. Capsule (16-)18-21 x (7-)10-12 mm, narrowly ovoid-conic. Seeds dark reddish-brown, 1.1-1.5 mm long, cylindric, with terminal and unilateral wing, shallowly linear-foveolate.