Hypericum abilianum (Nomenclature)
Subshrub 0.4 m tall, erect, with branches strict, glabrous. Stems orange to vinous red, 4-lined and ancipitous when young, soon 2-lined, eventually terete, internodes shorter than leaves; cortex exfoliating in strips; bark reddish brown, finely striate. Leaves sessile or with petioles to 0.2 mm long; lamina 12-16 x 3.5-6 mm, lanceolate to narrowly oblong or elliptic-oblong, paler beneath, chartaceous, not glaucous, with margins plane or recurved (in drying?), spreading; apex acute to apiculate or obtuse, margin entire, base cuneate to subcordate; venation: 3(4) pairs of laterals curved- ascending from lower 0.3-0.35 of midrib, tertiary reticulation dense; laminar glands pale, dense, unequal, not prominent; intramarginal glands black, dense. Inflorescence c. 3-5-flowered from up to 3 nodes, congested, curved-corymbiform, with irregularly disposed flowering branches from lower nodes; pedicels 1-3 mm; bracteoles reduced, narrowly lanceolate, with dense marginal black glands. Flowers c. 15 mm in diam.; buds ellipsoid, subacute. Sepals 6-7 x 1.4-1.6 mm, subequal, free, narrowly oblong to lanceolate, acute, entire; veins 5-7, branching; laminar glands pale, linear, distally interrupted to striiform; inframarginal glands black, dense. Petals golden yellow, tinged red dorsally, 8-10 x 4-4.5 mm, c. 1.7 x sepals, oblong-oblanceolate, rounded with apiculus apiculate, subapical; laminar glands mostly pale, linear to striiform or punctiform, occasionally black, solitary, punctiform; marginal glands black, slightly prominent. Stamens c. 70, longest 7-8 mm, c. 0.85 x petals; anther gland black. Ovary c. 3 x 1.5 mm, ovoid-pyramidal; styles 4.5 mm, 1 .5 x ovary, spreading-incurved. Capsule and seeds unknown.
'Among grass and low ericoid shrubs'; c. 2000 m.
Angola (Huila).
H. abilianum is closely related to the East African 3. H. kiboense and 4. H. conjungens, but differs from both in its lanceolate to oblong, acute to obtuse leaves. It is nearer H. conjungens in its erect, strict- branching habit, and its leaves are intermediate in size between those of H. conjungens and H. kiboense but nearer in shape to those of H. glandulosum.
H. abilianum is known so far from only one collection.