Cadua axillary
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| Cadua axillary | ||||||||||||
| ( Wawra ) WLWagner & Lorence |
Kadua axillary is a plant from the genus Kadua in the family of the Rubiaceae (Rubiaceae). It is endemic to Hawaii .
description
Vegetative characteristics
Kadua axillaris grows as a shrub or small tree , more rarely as a liana , which can reach heights of 2 to 6 meters.
The constantly against arranged on the branches leaves are divided into a petiole and leaf blade. The petiole is 0 to 1.7 inches long. The simple, membrane or paper-like leaf blade is 6.4 to 16 centimeters long and 2.6 to 6.5 centimeters wide, from obovate-lanceolate to elliptical to obovate. The top of the leaf blade is glabrous while the underside is glabrous or finely haired, with the hairiness sometimes only occurring along the leaf veins . The spider base is blunt, truncated or narrowly tapered, the spreader tip is pointed or pointed, more rarely blunt or rounded, and the edge of the spread is whole. Several rather inconspicuous lateral nerves branch off from each side of the leaf central nerve. The stipules resemble the deciduous leaves, are fused with the base of the petiole and thereby form a leaf sheath . The leaf sheath is 5 to 8 millimeters long.
Generative characteristics
The axillary or on very short, leafless side branches, rarely also terminal paniculate inflorescences are 2 to 6 centimeters long. The inflorescences are usually finely haired, more rarely glabrous. The inflorescence stalk is 0.4 to 1.2 inches long. The inflorescences contain several single stalked flowers. The flower stalks are 0.2 to 0.5 inches long.
The four-fold flowers are radial symmetry . The sepals are fused together to form a calyx tube. The bald or ciliate calyx lobes are approximately triangular to linear-triangular in shape with a length of 0.5 to 0.6 millimeters. The fleshy, slightly hairy petals are fused together like a salver. The sometimes reddish speckled corolla tube reaches a length of 0.4 to 0.65 centimeters and has a slightly square cross-section. The four greenish white, linear corolla lobes reach lengths of 0.28 to 0.35 centimeters and have a fleshy appendage at the tip.
The stone fruit- like capsule fruits reach a diameter of 0.4 to 0.6 centimeters and are dark blue to purple-black in color when ripe. The corolla lobes remain on the fruit for a long time. Each of the fruits contains several seeds.
Chromosome number
The number of chromosomes is 2n = 72 *.
distribution
The natural range of Kadua axillaris is on some islands belonging to Hawaii . Kadua axillaris is endemic to the islands of Hawai'i , Maui and Moloka'i .
Taxonomy
It was first described as Gouldia axillaris in 1874 by Heinrich Wawra von Fernsee in Flora; or, (general) botanical newspaper . In 2005 Warren L. Wagner and David H. Lorence transferred the species as Kadua axillaris in Systematic Botany to the genus Kadua .
Individual evidence
- ↑ a b c d e f g Kadua axillaris. In: Flora of the Hawaiian Islands. www.botany.si.edu/pacificislandbiodiversity/hawaiianflora, accessed on January 1, 2017 (English).
- ↑ Gouldia axillary at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 1, 2017.
- ↑ Kadua axillaris. In: The Plant List. www.theplantlist.org, accessed January 1, 2017 (English).