Hypericum marahuacanum subsp. chimantaicum (Nomenclature)
Branches strict to ascending, paired and pseudo-dichotomous, rarely lateral. Leaves twisting slightly, subtetrastichous; lamina 8-12 x 0.6-0.8 mm, with glands few, obscure or apparently absent. Inflorescence sometimes with 2-4 short axillary shoots immediate below, pseudo-dichotomous; pedicel c. 3 mm long. Flowers c. 10 mm in diam. Sepals 4-6 x 0.6-1 mm, linear-lanceolate, acute, veins 5-7. Petals 6-8 x 2.5-3 mm, c. 1.5 x sepals, oblanceolate. Stamens c. 30?, longest c. 4-5 mm long, 0.6-0.7 x petals. Ovary c. 1.5-2 x 1 mm, ovoid-ellipsoid, rostrate; styles 2-3.5 m long, c. 1.5 x ovary, erect to ascending; stigmas narrowly capitate. Capsule 3.5-5 x 2-2.5 mm, ovoid-ellipsoid, acute to subrostrate.
In swampy open savanna; 2121-2200 m.
Venezuela (Bolivar: Macizo de Chimantá and Roraima).
All the characters by which subsp. chimantaicum differs from subsp. marahuacanum are apomorphic (advanced). It is the easternmost taxon of those in the H. magdalenicum affinity and is as isolated as subsp. marahuacanum.