Survey of the fruits and endocarps of Icacinaceae (Lamiids, Icacinales) Author Rio, Cédric Del Author Stull, Gregory W. Author Franceschi, Dario De text European Journal of Taxonomy 2020 2020-05-14 645 1 130 journal article 22093 10.5852/ejt.2020.645 1cd473d9-9d96-438f-bab4-29c5e56f82b8 3829651 Icacina oliviformis (Poir.) J.Raynal Fig. 11.10–11.18 Material examined Specimen used for endocarp and fruit description REPUBLIC OF THE CONGO • 1892; M. Dybowski 698 ; P[ MNHN-P-P04495750 ]. Other material CENTRAL AFRICAN REPUBLIC • 1978; Peyre de Fabrègues 3610 ; P[ MNHN-P-P04495743 ]. SENEGAL • 1933–1934 ; J . Trochain 3367 ; P [MNHN-P-P04495790] . Description FRUIT. Elliptical, red-brown when mature. Epicarp puberulent with small ovoid hairs with an acuminate apex. Mesocarp 420–620 µm thick when dry. Length 17–23 mm , width 13–16 mm , thickness 9–14 mm . ENDOCARP. Elliptical in lateral view, globose in transverse section, length ca 18 mm , width ca 13.1 mm , thickness ca 14 mm . Keel running along the dorsal length of the endocarp, flanked by two channels, with the vascular bundle embedded within keel/ endocarp wall; a single channel runs along the ventral length of the endocarp. Apex truncate; base rounded-acute and slightly asymmetrical. Outer surface of the endocarp rugose with ca 70–80 mounds, more or less square-polygonal, with a freely ending channels inside, more or less branched. Mounds organized in 7–8 longitudinal lines separated by three main longitudinal channels. The main channel on each face reaching a pore positioned subapically, each pore with a central pit. Vasculature of the endocarp resting in the channels between mounds and along the channel branches inside the mounds. Endocarp wall 288–307 µm thick excluding mounds ( 588–661 µm including mounds). Endocarp wall with two cell layers: outermost layer with 7–8 rows of anticlinally oriented to isodiametric cells, cells 24–34 µm in width; innermost layer with 8–9 rows of periclinally oriented cells, cells 16–21 µm in width. Locule surface smooth, lacunate.