Hypericum magdalenicum N. Robson

Shrubor small tree (0.2-)0.7-l.5(-2) m tall, erect, with branches strict, pseudo-dichotomous and sometimes with 2-3 laterals closely beneath flower. Stems orange-brown, 4-lined and compressed when young, the subfoliar ridges broad, soon terete, cortex exfoliating irregularly; internodes 2-4 mm long. Leaves sessile, densely imbricate, erect or outcurving, markedly tetrastichous, deciduous above base without fading; lamina 8-18 x 2-6.2 mm, broadly to rather narrowly elliptic or oblanceolate, plane to incurved-conduplicate, not or slightly cucullate, midrib plane or slightly impressed beneath, margin not distinct, epidermis sometimes undulate, concolorous, some- times glaucous, ± thinly to thickly coriaceous; apex acute, base narrowly cuneate, scarcely sheathing, pairs united to form narrow interfoliar ridge; basal vein 1 , with c. 3-4 pairs of ascending lateral branches, sometimes branching distally, not prominent or impressed beneath, tertiary reticulation not visible; laminar glands ± dense, sometimes visible beneath. Inflorescence 1-flowered, with pseudo-dichotomous branches from node below; pedicel 4-5 mm long, not incrassate upwards; upper leaves not transitional. Flowers 20-30 mm in diam., stellate. Sepals (7-)9-ll x (2-)2.5-3 mm, elliptic, acute, veins c. 9-11, obscurely reticulating distally, with midrib not or slightly prominent; glands linear, punctiform near apex. Petals deep yellow, (10-)14-17 x (5-)9-ll mm, 1.5-2 x sepals, obovate; apiculus acute; glands linear, distally interrupted to punctiform. Stamens c. 100-120, longest c. 5-8 mm long, c. 0.5 x petals. Ovary 2.5-3 x 1.5-2 mm, ellipsoid to subglobose; styles 3, 6-7.5 mm long, 2.5-3.5 x ovary, spreading-incurving; stigmas narrow to narrowly capitate. Capsule (6-)8-9 x 4-6 mm, ellipsoid, shorter than sepals. Seeds c. 1-2 mm long, ecarinate; testa finely scalariform.