Hypericum pseudohenryi (Nomenclature)
Shrub 0-7-1-7 m tall, ± spreading, with branches erect to arching. Stems red, 4-angled and ancipitous in first year, then terete, stout; internodes 8-60 mm long, shorter than to exceeding leaves; bark grey-brown. Leaves petiolate, with petiole 0-5-1 mm long; lamina 20-66(-80) x 5-35 mm, ovate or ovate-oblong to lanceolate or lanceolate-oblong, rounded or rarely apiculate-obtuse, margin plane, base narrowly to ± broadly cuneate, paler or somewhat glaucous beneath, chartaceous; venation: 2-3 pairs of main laterals (the upper forming distinct undulating intramarginal vein), the midrib branched distally, with lax obscure tertiary reticulum; laminar glands dots and short streaks; ventral glands densest or present only near midrib. Inflorescence l-7(-c. 25)-flowered, subcorymbiform, from apical node; pedicels 4-11 mm long; bracts foliar to narrowly lanceolate, persistent. Flowers 30-55 mm in diam., stellate to subcyathiform, buds ovoid-pyramidal, subacute. Sepals 6-9(-13) x 3-7 mm, free, imbricate, subequal, erect to outcurved in bud and fruit, broadly to narrowly ovate-oblong or very rarely foliaceous, acute or subacuminate to obtuse, with margin narrowly hyaline, entire or minutely denticulate towards apex; midrib conspicuous, veins not prominent; laminar glands linear, 8-10. Petals golden yellow, not red-tinged, spreading to reflexed, 16-30 x 10-17 mm, 2.5-3 x sepals, obovate, with apiculus subterminal, obtuse; margin entire to irregularly eroded-denticulate, eglandular. Stamen fascicles each with c. 40 stamens, longest 14-20 mm long, 0.75-0.85 x petals; anthers golden-yellow. Ovary 5-9 x 3.5-6 mm, ± broadly ovoid; styles 5.5-11 mm long, somewhat longer than ovary, free, suberect to divergent, outcurved near apex; stigmas truncate. Capsule 12-17 x 10-14 mm, ovoid-conic to ovoid. Seeds dark orange-brown, 15-20 mm long, narrowly cylindric, narrowly carinate, shallowly linear- reticulate.
Pine forest, thickets, dry grassy or stony slopes; 1400-3800 m.
China (north Yunnan, central Sichuan).
H. pseudohenryi is related to H. acmosepalum but has a distribution (in north-western Yunnan and Sichuan) almost wholly to the north of that species. It differs from it in its oblong-lanceolate to oblong-ovate leaves, usually with a rounded apex, a partial intramarginal vein and not or scarcely glaucous beneath, and its ovoid (not pyramidal) capsules, which do not turn bright red during maturation. H. pseudohenryi appears to be one of the commonest species of sect. Ascyreia in Sichuan, along with H. monogynum and H. patulum. Two specimens appear to be intermediate between H. pseudohenryi and H. lagarocaule: Sichuan: Tianquan Xian, 21. v. 1956, He 44087 (SZ); Yanyuan, 1900 m, 23. v. 1978, Zhao et al. 4586 (SZ). Since both localities are in the region where the distributional areas of these species overlap, it seems likely that these specimens are hybrids.