Paropsiopsis decandra (Baill.) Sleumer

Lagrange, Flavien, Martínez, Camila & Rio, Cédric Del, 2024, Seed morphology of the paleotropical tribe Paropsieae (Passifloraceae, Malpighiales), and paleobotanical implications, European Journal of Taxonomy 943, pp. 1-23 : 14

Paropsiopsis decandra (Baill.) Sleumer

Figs 1D , 6A–D

Material examined

GABON • 1906?; T.J. Klaine 194; P [ P 04772112]!.

Seed description

Seeds compressed, 5.9–6.1 mm long, 2.6–2.9 mm wide and 1.6–1.9 mm thick, oblong. The surface is reticulate foveolate and brown, with an average of 6.12 reticulations per mm 2. The reticulations have an average diameter of 195 µm and a depth of 106 µm. The margin is entire. The apex lacks a prominent appendage. The base is acute and truncate, with a mucro. The palisade seed coat is 103 µm thick.

Figures

Fig. 1. Cross-sections of seeds from each genus. A. Androsiphonia adenostegia Stapf (P04772168). B. Barteria fistulosa Mast. (P04772344). C. Paropsia edulis Thouars (P04767996). D. Paropsiopsis decandra (Baill.) Sleumer (P04772112).E. Smeathmannia pubescens Sol. ex R.Br. (P04772722). F. Seed coat of Barteria fistulosa (P04772344). Scale bars: A = 1.5 mm; B–D = 1 mm; E = 0.8 mm; F = 1.1 mm.

Fig. 6. Seeds of the genera Paropsiopsis Engl. and Smeathmannia R.Br. A–D. Paropsiopsis decandra (Baill.) Sleumer (T.J. Klaine 194; P04772112). E–H. Smeathmannia laevigata Sol. ex R.Br. (Heudelot 655; P04772782). I–L. Smeathmannia pubescens Sol. ex R.Br. (A.J.B. Chevalier 17306; P04772722).A, E, I. Face view. B, F, J. Side view. C, G, K. Second face view. D, H, L. Basal view. Scale bar = 5 mm. Arrow: mucro.