You are here
Nomenclature
Hypericum pleiostylum C.Rodr.Jim.
Nomenclature
-
Section: sect. TrigynobrathysSubsection: subsect. Knifa
- holotype: UPS - Regnell - III 1732
Media
DIAGNOSTIC DESCRIPTION
Annual herb 0.10-0.26 m tall, erect or ascending from decumbent rooting base, with stems branched from or near the base, usually with up to 6 pairs branches above middle. Stems green to reddish-brown, 4-angled, sometimes ancipitous above, with lines smooth; internodes 8-25 mm, the uppermost not shorter, exceeding leaves. Leaves sessile, spreading, not tetrastichous, persistent; lamina 3-8 x 2-3.5 mm, ovate-deltoid to elliptic, plane, not cucullate, midrib prominent beneath, smooth, concolorous, glaucescent, membranous; apex rounded, margin plane, base rounded to cuneate, not sheathing, free; basal veins 3-5(-7), with less prominent midrib branches; tertiary reticulum dense, obscure; laminar glands rather dense, punctiform, prominent. Inflorescence 3-5(-7)-flowered, terminal, branching regularly dichasial/monochasial, sometimes with flowering branches from up to 3 nodes below, the whole fusiform-cylindric; pedicels c. 5 mm long; bracts foliar. Flowers c. 6-7 mm in diam., stellate. Sepals 2-2.5 x 0.5-1.2 mm, subequal to unequal, sometimes imbricate distally, obovate or oblanceolate to elliptic or narrowly oblong, apiculate-obtuse, veins 3, unbranched, not prominent; glands all or mostly linear. Petals golden (?) yellow, not veined red outside, 3-4 x 1-1.2 mm, c. 1.6-2 x sepals, oblong; apiculus and glands absent. Stamens 25-30, 5-fascicled or irregularly grouped, longest 1-1.5 mm long, c. 0.7 x petals. Ovary c. 1 x 0.6 mm, ovoid- ellipsoid; styles 5(6-8), c. 0.8 mm long, c. 0.8 x ovary; stigmas scarcely capitate. Capsule 2.5-3 x 2-2.5 m, broadly cylindric to globose, c. 1.5 x sepals. Seeds c. 0.7 mm long; testa finely and rather shallowly linear-scalariform.