Chiangiodendron mexicanum
| Chiangiodendron mexicanum | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Chiangiodendron | ||||||||||||
| T. Wendt | ||||||||||||
| Scientific name of the species | ||||||||||||
| Chiangiodendron mexicanum | ||||||||||||
| T. Wendt |
Chiangiodendron mexicanum is a tree in the Achariaceae family from southern Mexico , Belize, and Costa Rica . It is the only species in the genus Chiangiodendron .
description
Chiangiodendron mexicanum grows as a tree up to 15-20 meters high. The trunk is corrugated at the base and the trunk diameter reaches up to 60 centimeters. The bark is relatively smooth to fine-cracked and brownish.
The simple, glabrous and stalked leaves are alternate. The petiole is 1.5-4.5 inches long and thicker, somewhat swollen at the base and at the tip. The leaves are pointed to pointed, entire, ovate to narrow-elliptical, lanceolate and 9-25 centimeters long and 2.2-7.5 centimeters wide. The nerve is pinnate and the lateral arteries converge intramarginally. The stipules are missing.
Chiangiodendron mexicanum is dioecious diocesan . The axillary, relatively short inflorescences are racemose to slightly paniculate . The five-fold, very small, short-stalked and unisexual flowers are yellowish-white and have a double flower envelope . The almost free sepals are short-haired and the boat-shaped, free and spreading petals are short-haired on the outside and in the middle and on the inside with a larger, two-pointed, fleshy appendage at the base. Five small stamens are formed in the male flowers and staminodes may be present in the female flowers. The single-chambered, short-haired ovary is on top with three very short styluses with two-lobed, flat stigmas ; the male flowers have a pestle.
Small, fleshy and yellow-brown, mostly three-lobed, about 2 centimeters large and dense, very fine-haired, almost smooth, blackish, roundish capsule fruits with remains of calyx and stylus are formed. The pericarp is orange and they contain up to three 8-10 millimeters large, orange-brown seeds with a thin seed coat and a red aril with reddish juice.
The number of chromosomes is 2n = 12.
literature
- T. Wendt: Chiangiodendron (Flacourtiaceae: Pangieae), a New Genus from Southeastern Mexico Representing a New Tribe for the New World Flora. In: Systematic Botany. Vol. 13, No. 3, 1988, pp. 435-441, doi: 10.2307 / 2419305 .
- Nelson Zamora Villalobos, Luis J. Poveda-Álvarez, Quirico Jiménez Madrigal: Árboles de Costa Rica. Volume IV, Editoral Tecnológico de Costa Rica, 2017, ISBN 978-9977-66-371-5 , p. 56 f., Limited preview in Google Book Search.