Coprosma fatuhivaensis
| Coprosma fatuhivaensis | ||||||||||||
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Branch with leaves and female flowers |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Coprosma fatuhivaensis | ||||||||||||
| WLWagner & Lorence |
Coprosma fatuhivaensis is a plant from the genus Coprosma in the family of the Rubiaceae (Rubiaceae). It is endemic to an island in the Marquesas Islands in the southern Pacific.
description
Vegetative characteristics
Coprosma fatuhivaensis grows as a tree that can reach heights of about 7 meters. The bark of young twigs is finely hairy.
The constantly against arranged on the branches leaves are divided into a petiole and leaf blade. The petiole is 0.7 to 1.1 inches long. The simple, thin-leathery leaf blade is narrow-elliptical with a length of 5.3 to 6.7 centimeters and a width of 0.9 to 1.8 centimeters. The base of the spade tapers to a point, the tip of the spreader is pointed and the edge of the spread is entire. Both the top and bottom of the leaf are bare. Eight to nine secondary nerves branch off from each side of the broad central leaf nerve . Small, mostly semicircular domatia can be found along the central leaf nerve . The interpetiolaren stipules are similar to the foliage leaves, 0.2 to 0.25 centimeters long and are about intergrown to four fifths of its total length to each other. Both the upper and lower side of the stipules are bare and they have toothed and ciliate leaf margins.
Generative characteristics
The lateral, semi-sessile zymous inflorescences contain three individual flowers. The flower stalks are up to 4.2 millimeters long in female flowers.
The unisexual flowers are radial symmetry and five or six-fold with a double flower envelope . The five or six sepals are tubular in the female flowers and the 0.5 to 0.6 millimeter long calyx is about 0.1 to 0.2 millimeters long on the calyx tube and 0.3 to 0.4 millimeters on the triangular calyx teeth . The five or six petals are fused together in a funnel shape and the corolla tube ends in five or six corolla lobes. In the female flowers, the corolla tube is around 2 millimeters and the corolla lobes between 1.2 and 1.3 millimeters long. Nothing is known about the male flowers.
Nothing is known about the stone fruits or the seeds.
distribution
The natural range of Coprosma fatuhivaensis is on the Marquesas Islands in the South Pacific . Coprosma fatuhivaensis is an endemic that only occurs on the island of Fatu Hiva , although this occurrence is only known from a single collection carried out in the southern part of the island.
Coprosma fatuhivaensis thrives at altitudes of 870 meters. This species grows there along a mountain ridge, in a forest blown by the wind. Crossostylis biflora , Freycinetia impavida and Metrosideros collina grow in this forest .
Taxonomy
The first description of Coprosma fatuhivaensis was made in 2011 by Warren L. Wagner and David H. Lorence in phytokeys . The specific epithet fatuhivaensis refers to the range of the species.
Individual evidence
- ↑ a b c d e f g h Warren L. Wagner, David H. Lorence: Revision of Coprosma (Rubiaceae, tribe Anthospermeae) in the Marquesas Islands . In: PhytoKeys . No. 4 , 2011, ISSN 1314-2003 , p. 109-124 , doi : 10.3897 / phytokeys.4.1600 .
- ↑ Coprosma fatuhivaensis at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed November 9, 2016.
