Platea parvifolia Merr. & Chun, 1940

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 : 112-114

Platea parvifolia Merr. & Chun

Fig. 36.1–36.8

Material examined

Specimen used for endocarp and fruit description CHINA • 1936; W.T. Tsang 27299; P[ MNHN-P-P04518074 ].

Description

FRUIT. Laterally compressed, black when dry, ovoid-elongate, acute at the apex. Epicarp glabrous. Mesocarp thin when dry. Length 30–34 mm, width 13.5–15.0 mm, thickness 13.7 mm.

ENDOCARP. Brown, slightly elliptical in lateral view, globose in transverse section, length ca 33.2 mm, width ca 12.2 mm, thickness ca 12.5 mm. Apex acute and asymmetrical; base rounded and symmetrical. Outer surface of the endocarp rugose with ca 62–65 mounds, more or less square-polygonal in shape, with freely ending channels inside, more or less branched. Mounds organized in 3–4 longitudinal lines separated by 2–3 main longitudinal channels. The main channel on each face reaches a pore positioned subapically. Vasculature of the endocarp positioned in the channels between mounds and in the channel of the mounds. Endocarp wall 500–550 µm thick. Endocarp wall with 11–21 rows of sclerotic, periclinally oriented, elongated and homogeneous cells, cells 18.0– 44.8 µm in width. Inner endocarp surface smooth, not lacunate.

Class Magnoliopsida Brongn. Subclass Lamiidae Order Icacinales Tiegh. Family Oncothecaceae Kobuski ex Airy Shaw Fig. 36.9–36.14