Trichoscypha hallei Breteler, 2004

Breteler, F. J., 2004, The genus Trichoscypha (Anacardiaceae) in Lower Guinea and Congolia: A synoptic revision, Adansonia (3) 26 (1), pp. 97-127 : 111

7. Trichoscypha hallei Breteler , sp. nov.

T. laxiflorae Engl. affinis floribus parvis, petalis valvatis, disco glabro et foliis in pagina inferiore punctis numerosis parvis brunneis obsitis, ab ea differt pedicellis florum masculorum multum brevioribus, petalis piliferis et fructus pilifero.

TYPUS. — N. Hallé 2822, Gabon, Bélinga, Ƌ fl.

Oct. 1964 (holo-, P!; iso-, WAG!) .

Shrub or treelet 3-6 m tall. Branchlets pubescent. Leaves 7-8-jugate, petiole and rachis pubescent; folioles oblong-elliptic, 2-4 times as long as wide, 11-30 × 3.5-7(-8) cm, rounded at base, caudate-acuminate, the acumen (1-)1.5-2(-2.5) cm long; midrib impressed above, pubescent; beneath ± sparsely pubescent and with minute brown dots, the 17-27 pairs of main lateral nerves parallel, slightly impressed above, prominent beneath; petiolule 5-10 mm long, grooved above, pubescent. Inflorescence a (sub)terminal or axillary, pubescent, loose panicle, the male inflorescence up to c. 60 cm long, the female one much shorter. Male flower 4-merous, yellowish; pedicel ≤ 1 mm long, pubescent; calyx c. 1 mm long, pubescent; petals valvate in bud, suberect to slightly spreading, ovate with an acute tip, 1.5 mm long, 1.2 mm wide, appressed-pubescent outside, margin papillate; stamens shorter than petals, ± inflexed, glabrous; disc subquadrate, c. 1 × 1 mm, glabrous, with a small, velutinous pistillode in the centre. Female flower unknown. Fruit subglobose to ellipsoid, 2-2.5 × 1.8-2.2 cm, dark red at maturity, velvety. — Figs 1F ; 4.

HABITAT AND DISTRIBUTION. — Rain forest in

Cameroun and Gabon. Alt. 500-900 m.

PARATYPES. — CAMEROUN: Van Andel et al. 3717, Akom II, Nkol Dangueng, fr. Aug. ( WAG!) . — GABON: Cours 7011, Bélinga, fl. Oct. (MA!).

NOTES. — This species is named in honour of Nicolas HALLÉ, who has greatly enriched our knowledge of the Gabonese flora, not only by his very valuable collections, but also by his taxonomic treatments of several plant families.

Figures

FIG. 1. — Flowers of Trichoscypha species, one petal removed: A, T. acuminata Engl.; B, T. arborea (A. Chev.) A. Chev.; C, T. bijuga Engl.; D, T. bracteata Breteler; E, T. engong Engl. & Brehmer; F, T. hallei Breteler; G, T. imbricata Engl.; H, T. laxiflora Engl.; I, T. lucens Oliv. A1, Breteler 15670; A2, Sosef et al. 516; A3, Breteler 15680; B1, Van der Burg 766; B2, J.J. de Wilde 311; C1, Stoop-van de Kasteele 210; C2, Beentje 889; D, Walker s.n.; E1, Mildbraed 5391; E2, Wilks 3519; F, N. Hallé 2822; G1, Breteler et al. 14477; G2, Breteler et al. 14491; H1, Bos 4981; H2, Van Andel et al. 3959; I1, de Koning 3909; I2, Beentje 875. Drawing by H. DE VRIES.

FIG. 4. — Distribution of Trichoscypha species 2, 4-9, 12.