Diploon cuspidatum
| Diploon cuspidatum | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Diploon | ||||||||||||
| Cronquist | ||||||||||||
| Scientific name of the species | ||||||||||||
| Diploon cuspidatum | ||||||||||||
| ( Horn ) Cronquist |
Diploon cuspidatum is a tree in the sapote family from eastern and northern Brazil , Venezuela , Guyana to Bolivia , Peru and Ecuador . It is the only species in the Diploon genus.
description
Diploon cuspidatum grows as a tree up to 27–30 meters high. The trunk diameter reaches up to about 50 centimeters. The trunk is corrugated at the base or buttress roots are formed. The reddish-brown bark is scaly.
The simple, slightly leathery and bare, alternate leaves are short-stalked. The short, almost bald petiole is up to 8 millimeters long. The narrow-egg-shaped to elliptical, lanceolate or narrow-obverse-shaped, light green underneath leaves are entire, pointed to pointed or tailed and 6-11 centimeters long and 2-4 centimeters wide. The leaf margin is just bent over. The veins are very finely pinnate with indistinct lateral veins. The stipules are missing.
The flowers appear axially in small clusters. The stalked, 4–5-fold and whitish, very small flowers are hermaphroditic. The sepals, which are up to 1.5 millimeters long, are free and the petals up to 3 millimeters long are fused with protruding tips. The 4–5 very short stamens are located below on the corolla lobes. The uni-, bald ovary is upper constant with minimal stylus and tiny scar .
Roundish, smooth, glabrous and solitary, about 2 centimeters large, red to blackish berries are formed. The up to 1.5 centimeters long, ellipsoidal seed is smooth and brown, with a whitish scar ( hilum ) on the base.
literature
- Rodriguésia. Vol. 57, No. 1, 2006, pp. 251 f, 365 f, online at biodiversitylibrary.org.
- Rodriguésia. Vol. 61, No. 1, 2010, p. 309 f, online at biodiversitylibrary.org.
Web links
- Diploon cuspidatum at NYBG.
Individual evidence
- ↑ Rafaël Govaerts (ed.): Diploon. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved June 4, 2020.