Jasminum nardydorum Breteler, 2002

Breteler, F. J., 2002, Novitates Gabonenses 42. The genus Jasminum (Oleaceae) in Gabon: identification key and description of a new species, Adansonia (3) 24 (1), pp. 49-54 : 50

Jasminum nardydorum Breteler , sp. nov.

Jasminum bakeri Scott-Elliot affinis foliis trifoliolatis, sed differt inflorescentia brevipedunculata plus minusve glabra, calyce plus minusve integro et lobis corollae sex longioribus angustioribusque.

TYPUS. — Breteler, Issembé, Sosef & Wilks 15643, Gabon, Estuaire, Mts. de Cristal, Assok Rd. , 0°51’N, 10°18’E, 8 Oct. 2000, fl. b. (holo-, WAG; iso-, LBV, P).

Thin, winding liana; main stem up to c. 1 cm thick, glabrous in all its vegetative parts except for the pilose acarodomatia of the leaves. Leaves opposite, trifoliolate; petiole often geniculate, subterete, canaliculate to grooved above, 2-4(-5) cm long; petiolules grooved above, those of central leaflets 1-3 cm long, those of the lateral ones (1-)2-3(-5) mm long; lamina softleathery, smooth and glossy when fresh, elliptic, 2-2.5(-3) times as long as wide, the central leaflet 9-16 × 3-8 cm, the lateral ones (4-)5-14 × (1-) 2- 6 cm, rounded to shortly cuneate (unequal-sided or not) at base, acuminate with an acute to mucronate apex, the acumen, up to 1.5 cm long; midrib and the (3-)4-5(-6) pairs of main lateral nerves impressed above, prominent beneath, margin slightly revolute; pilose acarodomatia present, more numerous on the central than the lateral leaflets. Inflorescence a cauliflorous or axillary few to many-flowered cyme, sparsely puberulous; peduncle 2-6 mm long; bracts narrowly triangular, 1-3 mm long. Pedicel 1-2 mm long. Calyx shortly tubular, 1.5-3 mm long, ± 2 mm in diam., glabrous to sparsely puberulous, margin undulate to minutely 5-6-lobed, sparsely puberulous. Corolla white, ± 30 mm long, glabrous; tube 15-17 mm long; lobes 6, oblong-lanceolate, 12-13 × 3-4 mm, with rounded to acutish apex. Stamens glabrous, inserted at the upper part of the corolla tube; filaments very short, <1mm long; anthers 3.5-5 mm long, apiculate, partly reaching beyond mouth of corolla tube. Pistil 7-9 mm long, glabrous; ovary 1.5-2 mm long, obtuse at apex; style 2.5-3 mm long; stigma ± 4 mm long, shortly bilobed apically. Fruits unknown. — Figs. 1 , 3.

HABITAT AND DISTRIBUTION. — Rain forest of

Gabon, alt. up to c. 500 m.

PARATYPES. — GABON: F. J. Breteler & B.J.M. Breteler 15542, Mts. de Cristal, Assok Rd., 0°51’N, 10°18’E, 1 Aug. 2000, ster. ( G, LBV, MO, P, WAG) (This specimen has been collected from the same individual as the type); Le Testu 9183, Oyem, 17 June 1933, fl. ( BR, P) .

This species is named after Nardy BRETELER, wife of the author, who discovered this species in the Mts. de Cristal. The epithet “nardydorum” means “given by Nardy”.

Figures

Fig. 1. — Jasminum nardydorum Breteler: A, part of flowering branch; B, acarodomatium; C, inflorescences; D, flower bud, longitudinal section. (Breteler et al. 15643). Drawing by H. DE VRIES.

Fig. 3. — Distribution of Jasminum species in Gabon.