Oxandra sp.

Junikka, L., Maas, P. J. M., Maas-van de Kamer, H. & Westra, L. Y. Th., 2016, Revision of Oxandra (Annonaceae), Blumea 61 (3), pp. 215-266 : 261

publication ID

https://doi.org/10.3767/000651916X694283

persistent identifier

https://treatment.plazi.org/id/038A142D-6416-B275-2503-F9CFB1BEFDB5

treatment provided by

Felipe

scientific name

Oxandra sp.
status

 

Oxandra sp. — Fig. 26

Y. Fernandez 306 (U; MO), Venezuela, Bolívar, Mun. Cedeño, Cerro La Cobija , 120 m, Jan. 1989 .

Tree c. 12 m tall, diam not recorded; young twigs sparsely covered with erect hairs, soon glabrous. Leaves: petiole 1–3 mm long, 1 mm diam; lamina narrowly ovate to narrowly elliptic, 5–6 by 1.5–2 cm (leaf index 3–3.2), chartaceous, rather densely verruculose on both sides to not verruculose, sometimes reddish punctate below, dull and greyish above, greyish brown below, glabrous above and below, base acute, apex bluntly acute, primary vein flat to slightly impressed above, secondary veins distinct, 6–8 on either side of primary vein, raised above, angle of secondary veins with primary vein 40–50°, smallest distance between loops and margin 1– 2 mm, tertiary veins raised above, reticulate. Fruits solitary; fruiting pedicels c. 3 mm long, 1 mm diam, glabrous; bracts 6–7, depressed ovate, 1– 1.5 mm long, outer side glabrous; flower buds, sepals, petals,

stamens and carpels not seen. Monocarps 2 – 5, green in vivo, black in sicco, globose, 5 –6 mm diam, glabrous, apex rounded, wall 0.1–0.2 mm thick, stipes c. 1 by 1 mm. Seed globose, 5– 6 mm diam, brown, surface transversely striate, ruminations spiniform.

Habitat & Ecology — In non-inundated, low forest, associated with tree savannah (‘sabana arbustiva’). At an elevation of 120 m. Flowering: not recorded; fruiting: January.

Vernacular name — Venezuela: Majaguillo (Y. Fernandez 306).

Note — This is a very incomplete fruiting collection. Some striking features are: tiny leaves with an almost flat primary vein and globose monocarps of only 5–6 mm diam. This is in our opinion, however, not sufficient to describe this material as a new species.

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