Dendrobangia boliviana Rusby, 2800

Rio, Cédric Del, Stull, Gregory W. & Franceschi, Dario De, 2020, Survey of the fruits and endocarps of Icacinaceae (Lamiids, Icacinales), European Journal of Taxonomy 645, pp. 1-130 : 110-112

Dendrobangia boliviana Rusby

Fig. 35.10–35.17

Material examined

Specimen used for endocarp and fruit description

FRENCH GUIANA • Maripasoula; 2015; O. Poncy 2800; P [ MNHN-P-P00784576 ].

Description

FRUIT. Laterally compressed, black when dry, elliptical. Epicarp glabrous. Mesocarp ca 190 µm thick when dry. Calyx persistent. Length 15–20 mm, width 6.0– 10.4 mm, thickness ca 6.1 mm.

ENDOCARP. Cream, bilaterally symmetrical, unilocular, single-seeded, elliptical in lateral view, triangular or pyriform in transverse section, length ca 14.5 mm, width ca 8.1 mm, thickness ca 5.9 mm. Large channel present on dorsal side, ca 2mm wide, mirrored by a keel on ventral side. Apex and base slightly asymmetrical in lateral view. Outer surface of the endocarp rugose-granulate, homogeneous. Vasculature of the endocarp free; primary vascular bundle positioned outside the endocarp wall. Endocarp wall 300–320 µm thick. Endocarp wall with sclerotic cells, with two cell layers: outermost layer with 6–8 rows of anticlinally oriented to isodiametric cells, cells 27.4–38.4 µm in width; innermost layer with 1-5 rows of periclinally oriented cells, cells 23.8–35.2 µm width, cells tunnel-shaped (very elongate cells).