Alsodeiopsis Oliv. in Benth.

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 : 10

Genus Alsodeiopsis Oliv. in Benth.

Figs 6 , 7.1–7.9

Description

FRUIT. Oblong to slightly elliptical, asymmetrical at the apex, laterally compressed, red when mature. Epicarp strigose with yellow simple hairs with granular ornamentation, more or less shriveled when dry, revealing the underlying reticulum of endocarp ridges; calyx persistent.

ENDOCARP. Cream to brown, oblong in lateral view, lenticular in transverse section. Keel surrounding the endocarp in the plane of symmetry. Apex asymmetrical in lateral view; base rounded and symmetrical. Outer surface of the endocarp ridged, with a reticulate pattern of thin rounded to angular ridges. Ridges delimit irregular, small to expansive areoles with simple or arbuscular freely ending ridgelets. Vasculature of the endocarp follows the reticulum. Endocarp primary vascular bundle outside the endocarp wall or in a channel on the keel. Endocarp wall forming two or three layers, each with at least one row of periclinally oriented cells; locule surface smooth, often clearly lacunate.

Figures

Fig. 6. Fruits of Icacinaceae Miers. 1–9. Alsodeiopsis mannii Oliv. (N. Hallé & J.F. Villiers 4579). 1. Dried fruit, lateral view. 2–6. Endocarp. 2. Lateral view showing a reticulate pattern of ridges. 3. Dorsal view showing a keel surrounding the endocarp. 4. Opposite lateral view. 5. Apical view. 6. Basal view. 7. SEM image of seed and pericarp in transverse section. 8. Detail of the same section showing the mesocarp on the top and the endocarp wall at the bottom. 9. SEM image of the vascular bundle in a channel (arrow). – 10–18. Alsodeiopsis poggei Engl. (P. Sita 1872). 10. Dried fruit, lateral view. 11–15. Endocarp. 11. Lateral view showing a reticulate pattern of ridges. 12. Dorsal view showing a keel surrounding the endocarp. 13. Opposite lateral view. 14. Apical view. 15. Basal view. 16. SEM image of simple the hairs on the epicarp surface. 17. SEM image of the endocarp wall in transverse section. 18. SEM image of the vascular bundle in a channel (arrow). – 19–27. Alsodeiopsis staudtii Engl. (J.J.F.E. de Wilde 8304). 19. Dried fruit, lateral view. 20–25. Endocarp. 20. Lateral view showing a reticulate pattern of ridges. 21. Dorsal view showing a keel surrounding the endocarp. 22. Opposite lateral view. 23. Apical view. 24. Basal view. 25. Lateral view showing the vascularisation on the ridges. 26. SEM image of the pericarp in transverse section with a vascular bundle (arrow). 27. SEM image of the simple hairs on the epicarp surface. Images taken from Del Rio (2018). Scale bars: 1–6, 10–15, 19–24 = 10 mm; 7, 25 = 1 mm; 9, 18, 26 = 500 μm; 8, 16–17, 27 = 200 μm.