Monimia amplexicaulis
| Monimia amplexicaulis | ||||||||||||
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| Monimia amplexicaulis | ||||||||||||
| Lorence |
Monimia amplexicaulis is a smaller tree in the Monimia family. It is endemic to the Reunion Island . It is one of only three species in the genus Monimia .
description
Vegetative characteristics
Monimia amplexicaulis grows as a smaller, evergreen tree up to about 10 meters high. The trunk diameter reaches about 30 centimeters and the cracked bark is grayish-brown. The branches are fine-haired.
The seated and stem-encompassing to almost seated, cross-opposed, and slightly leathery, somewhat stiff leaves are up to 6-13 inches long and up to 4-11 inches wide. The short, thick petiole is, if present, up to 3–5 millimeters long and finely haired. The leaves are lighter underneath and ovate to elliptical or rounded, as well as with entire margins. The tip is rounded to pointed, the leaf base is blunt and heart-shaped. Above and below the leaves are lightly and briefly whitish hairy, and on the upper side somewhat pustular glandular. The veins are pinnate and raised on the underside.
Generative characteristics
Monimia amplexicaulis is dioecious segregated sexed diocesan . Appearing at the leafless leaf node, axillary or terminal or astblütigen, ramifloren thyrsi or short cymes are fine hairy. There are small, sloping cover sheets on the main and sometimes the side axes. Sometimes a leaf can appear on the side axes. The stalked, unisexual flowers each consist of a "pseudocorolla" which is formed by a spherical and fleshy, approximately 4-6 millimeter large flower base.
The male flowers with a spherical and fine-haired flower base with minimal tepals at the tip, are often underlaid by small bracts on the flower stalk. There are many, small stamens (60–150), with 2 appendages at the base, in the inner hairy flower base. In the anthesis, the flower opens and divides into 4–5 flat and spread out, slightly hairy lobes on which the stamens sit.
The somewhat smaller, fine-haired female flowers, with minimal tepals at the top, have an urn-shaped flower base with a small, multi-lobed opening (pore, mouth, ostiole) at the top. Inside the inner hairy flower base sit 5–10 individual, "upper" and single-chambered pistils whose stylus with thready scars protrude slightly through the opening. Later, some small stone fruits are formed inside .
At maturity, the fruiting, scaly, slightly hairy and brownish enlarged flowers ground to about 10-15 mm size to a sham and collecting fruit . Later it breaks unevenly and up to 10 individual, small and rounded to ovate, yellowish and about 6 millimeters long, bespizten drupes, sometimes with a small orange aril at the top, are visible. The solitary, small and finely pitted stone cores are light brown and pointed.
literature
- K. Kubitzki , JG Rohwer , V. Bittrich: The Families and Genera of Vascular Plants. Vol. II: Flowering Plants , Springer, 1993, ISBN 978-3-642-08141-5 (Reprint), pp. 426-437.
- David H. Lorence: A Monograph of the Monimiaceae (Laurales) in the Malagasy Region (Southwest Indian Ocean). In: Annals of the Missouri Botanical Garden. Vol. 72 (1), 1985, pp. 1-165, at pp. 51, 67-72, doi: 10.2307 / 2399135 , archive.org .
Web links
- Monimia amplexicaulis at Pl @ ntnet - Publish - PlantNet, accessed on May 7, 2019 (with a few pictures).
Individual evidence
- ↑ Note: The Arillus is in the genus description in Kubitzki and Lorence and can be seen in Lorence on p. 51, but it is not in the species description and in the illustration.