Barteria Hook.f.

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 : 6

Genus Barteria Hook.f.

Figs 1B, F , 3

Seed description

Seeds compressed, 4.6–7.0 mm long, 3.0–4.0 mm wide and 1.8–2.2 mm thick, curved oblong. The surface is coarsely reticulate, with an average of 4.00 reticulations per mm 2. The reticulations have an average diameter of 630 µm and a depth of 170 µm. The margin is entire. The apex lacks a prominent appendage. The base is acute and truncate, bearing a mucro. The palisade seed coat is on average 135 µm thick.

Remark

The genus is represented by 4 species, 3 are studied here.

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. 3. Seeds of the genus Barteria Hook.f. A–D. Barteria dewevrei De Wild. & T.Durand (Guignonis 1938; P04772304) seed. E–H. Barteria dewevrei second seed. I–L. Barteria fistulosa Mast. (H. Jacques- Félix 4802; P04772344). M–P. Barteria nigritana Hook.f. (A. Walker s.n.; P04772081). A, E, I, M. Face view. B, F, J, N. Side view. C, G, K, O. Second face view. D, H, L, P. Basal view. Scale bar = 5 mm.