Vadensea tenuifolia (Oliv.) Jongkind & O.Lachenaud

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 : 21

Vadensea tenuifolia (Oliv.) Jongkind & O.Lachenaud

Fig. 9.1–9.9

Material examined

Specimen used for endocarp and fruit description

CAMEROON • 1969; J.J. Bos 4277; P[ MNHN-P-P04495129 ].

Description

FRUIT. Epicarp strigose, smooth when dry. Mesocarp 750–820 µm thick when dry. Length 21–25 mm, width 9–15 mm, thickness 5.0– 10.2 mm.

ENDOCARP. Cream, lenticular in transverse section, length ca 18.4 mm, width ca 9.2 mm, thickness ca 8.5 mm. Keel surrounding the endocarp in the plane of symmetry. Apex slightly asymmetrical, bulged; base subacute, symmetrical. Outer surface of the endocarp ridged, with 4–6 main longitudinal ridges; the median and a lateral ridge reaching the point of the base on each face. Ridges angular and broad, almost rectangular, with a median channel clearly visible, delimiting a reticulate pattern enclosing 20– 24 polygonal longitudinally elongate areoles. The ridges merge with the bulge at the apex. Endocarp primary vascular bundle in a channel on the keel. Endocarp wall 180–200 µm thick excluding ridges (320–385 µm thick including ridges). Endocarp wall with ca 17 rows of periclinally oriented cells, cells 7–16 µm in width. Locule surface smooth and lacunate.