Vadensea oblongifolia (Engl.) 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 oblongifolia (Engl.) Jongkind & O.Lachenaud Fig. 8.10–8.16

Material examined

Specimen used for endocarp and fruit description

CAMEROON • 1966; R. Letouzey 8309; P[ MNHN-P-P04495051 ].

Description

FRUIT. Epicarp strigose, reticulate when dry, revealing the underlying reticulum of endocarp ridges. Mesocarp 50–70 µm thick when dry. Length 9–15 mm, width 6.3–10.0 mm, thickness 5.0– 6.6 mm.

ENDOCARP. Cream, lenticular to globose in transverse section, length ca 11.3 mm, width ca 6.8 mm, thickness ca 4.5 mm. Keel surrounding the endocarp in the plane of symmetry. Apex slightly asymmetrical; base rounded, slightly asymmetrical. Outer surface of the endocarp ridged, with ca 4–5 main longitudinal ridges; the median and occasionally a lateral ridge reaching the point of the base. Ridges sharp and thin, delimiting a reticulate pattern enclosing 20–25 polygonal areoles with freely ending ridgelets. Endocarp wall 112–154 µm thick excluding ridges (260–330 µm thick including ridges). Endocarp primary vascular bundle outside the endocarp wall. Endocarp wall with 9–11 rows of periclinally oriented cells, cells 8–15 µm in width. Locule surface smooth, lacunate.