Cremastosperma panamense Maas

Tree or shrub 1.5–7(–20) m tall, 3–10 cm diam.; young twigs and petioles glabrous. Leaves: petioles 2–10 by 1–2.5 mm, caniculate above, verrucose or furrowed; lamina narrowly elliptic to elliptic, 8–22 by 2–7 cm (index 2.7–4.7), chartaceous, green, brownish-green or greyish-green (or brown) above, (pale) green, (pale) brownish-green (or brown) below, shiny on both sides, glabrous on both sides, base acute to obtuse, decurrent, rarely narrowly cuneate, apex acuminate (acumen 5–25 mm long), primary vein occasionally shallowly grooved at the base, 1–1.5 mm wide at widest point, verrucose below, secondary veins 5–10, intersecondary veins 1–4, distance between from 5–20 mm at the base to 15–25 mm closer to the apex, angles with primary vein from 35–55(–70)° at the base to 60–75° closer to the apex, not branching, forming mostly distinct loops, smallest distance between loops and margin 2–5 mm, tertiary veins largely reticulate. Inflorescence of single, solitary flowers, on leafy or leafless twigs; peduncles 1–3 by 0.5–1 mm (in flower), 1–3 by 1.5–2 mm (in fruit), sparsely covered with erect whitish to golden hairs to 0.1 mm long; pedicels 12–20 by 0.5–0.8 mm at the base (in flower), 13–22 by 1–2 mm (in fruit), glabrous; (1–)2–3(-several) lower bract(s), deltate, ca. 0.5 by 0.5 mm, obtuse, mostly soon falling off, sparsely covered with erect whitish to golden hairs to 0.1 mm long; upper bract halfway along the pedicel, ovate to depressed ovate, 1–1.5 by 0.7–1mm, acute, obtuse or emarginate, glabrous; closed flower buds very broadly ovoid, opening in development; flowers green when immature, maturing to white, cream, or (pale) yellow in vivo, yellow brown, dark brown or blackish brown in sicco, sepals and petals glabrous; sepals free, broadly to very broadly ovate, appressed or patent, 1.5–3 by 1.5–3 mm, obtuse, soon falling off or persistent; outer petals narrowly ovate to narrowly elliptic, 7–18 by 4–6 mm, obtuse, inner petals narrowly ovate to narrowly elliptic, 10–25 by 3–5 mm, obtuse; androecium diam. unknown, stamens 1.2–1.5 mm long, connective appendage 0.7–0.9 mm wide; gynoecium diam. unknown, carpels ca. 35, 2 mm long, glabrous. Monocarps (2–)8–30, more or less globose, slightly asymmetrical, 8–13 by 7–11 mm, green maturing to yellow, orange, red or black in vivo, pale brown, reddish-brown or brown in sicco, with an excentric apicule; stipes 7–21 by 1–1.5(–3) mm; fruiting receptacle 3–8 mm diam., monocarps, stipes and receptacle glabrous. Seeds broadly ellipsoid, globose or transversally ellipsoid, light brown, pitted, 7–12 by 6–10 mm, raphe sunken, regular.

Panama (Coclé, Colón, Panamá and San Blas).

Cremastosperma panamense Maas – gatunek rośliny z rodziny flaszowcowatych (Annonaceae Juss.). Występuje endemicznie w Panamie.

Cremastosperma panamense là loài thực vật có hoa thuộc họ Na. Loài này được Maas mô tả khoa học đầu tiên năm 1986.