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Nomenclature
Hypericum pachyphyllum Collett & Hemsl.
Nomenclature
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Genus: HypericumSection: sect. Ascyreia
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Synonyms: 1
- holotype: K - Collett - 660
- holotype: CAL - H. H. Hildebrand - [node:field_collector_number]
DIAGNOSTIC DESCRIPTION
Shrub or undershrub (height unrecorded), with branches erect, rigid. Stems 4-lined and ancipitous when young, eventually terete; internodes 8-20 mm long, shorter than leaves; bark reddish-brown. Leaves sessile or with very short flat petiole; lamina 35-50 x 10-20 mm, oblong to oblong-lanceolate, subapiculate to obtuse, margin plane, reddish, subincrassate, base auriculate to broadly cuneate, discolorous, densely glaucous beneath, coriaceous; venation: 3 pairs main laterals, with midrib branched distally, without visible tertiary reticulum; laminar glands mostly lines and long streaks; ventral glands sparse. Inflorescence c. 10-25-flowered, from 2-4 nodes, subcorymbiform, with very short apical internode, sometimes with branches below; pedicels 9-17 mm long; bracts on main stem broadly ovate, forming a pseudo-whorl, others reduced, oblong to elliptic, deciduous. Flowers 40-50(-60) mm in diam., stellate or shallowly cyathiform; buds broadly to narrowly conic, acute to subacuminate. Sepals 8-14 x 3.5-5.5 mm, free, imbricate, subequal, ± spreading in bud and fruit, lanceolate, acute to subacute, with margin entire; midrib obscure except sometimes near apex, veins not prominent; laminar glands numerous, linear or long streaks. Petals bright? yellow, not tinged red, spreading or slightly incurved, 20-25 x 9-13 mm, c. 2-2-5 x sepals, oblanceolate to rather broadly ovate, with apiculus subterminal, rounded or almost absent; longest 10-14 mm long, c. 0.5 x petals; anthers bright yellow. Ovary 5-6 x 3-5 mm, narrowly ellipsoid; styles 7-9 mm long, 1-1.5 x ovary, divergent, outcurved towards apex; stigmas capitate. Capsule 10-13 x 6-8 mm, ovoid. Seeds not seen.