Paropsia Noronha ex Thouars

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 : 9

Genus Paropsia Noronha ex Thouars

Figs 1C , 4–5

Seed description

Seeds compressed, 4.9–8.1 mm long, 2.9–7.0 mm wide and 1.3–2.7 mm thick, oblong or cordate, sometimes curved. The surface is reticulate-foveolate or coarsely reticulate, with an average of 5.60 reticulations per mm 2. The reticulations have an average diameter of 487 µm and a depth of 190 µm. The margin is striate or entire, sometimes with a lateral fold. The apex may have a prominent appendage. The base is obtuse or acute, sometimes truncate, and may have a mucro. The palisade seed coat is on average 230 µm thick.

Remark

The genus is represented by 12 species, 8 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. 4. Seeds of the genus Paropsia Noronha ex Thouars. A–D. Paropsia brazzaeana Braill. (E. Dekindt 564; P04772425).E–H. Paropsia edulis Thouars (G. Cours 3424; P04767996). I–L. Paropsia grewioides Welw. ex Mast. (R. Letouzey 5589; P04772193). M–P. Paropsia grandiflora Sleumer (H. Humbert 32553; P04767592). 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.

Fig. 5. Seeds of the genus Paropsia Noronha ex Thouars. A–D. Paropsia humblotii H.Perrier (Ragauaparany 8040; P04766828). E–H. Paropsia madagascariensis H.Perrier (R. Bernard 120; P04766852). I–L. Paropsia obscura O.Hoffm (Madiomanana et al. 108; P05470672). M–P. Paropsia vareciformis (Griff.) Mast. (H. Schaller & L.E. Teo 3826; P05538484). 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.