Kadua foggiana
| Kadua foggiana | ||||||||||||
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| Scientific name | ||||||||||||
| Kadua foggiana | ||||||||||||
| ( Fosberg ) WL Wagner & Lorence |
Kadua foggiana is a plant from the genus Kadua in the family of the Rubiaceae (Rubiaceae). It is endemic to Hawaii .
description
Vegetative characteristics
Kadua foggiana grows as a spreading or climbing dwarf shrub with trunks of 0.1 to 0.4 meters in length. The stems are round in cross section. The bare bark is often somewhat glaucous .
The constantly against arranged on the branches leaves are divided into a petiole and leaf blade. The somewhat winged petiole is 0.5 to 1 centimeter long and finely hairy at the base. The simple, leathery leaf blade has a length of 6.5 to 16 centimeters and a width of 2.5 to 5 centimeters, elliptical-inverted-egg-shaped over elongated-egg-shaped to broadly egg-shaped. The top of the leaf blade is glabrous while the underside is glabrous or sparsely hairy along the leaf veins . The base of the spreader is rounded to almost heart-shaped, the tip of the spreader is long, pointed to tail, and the edge of the spreader is entire. From each side of the leaf central nerve, several pairs of side nerves, clearly recognizable on the underside of the blade, branch off and the higher-order leaf veins form a conspicuous, net-like pattern. The early falling stipules are similar to the foliage leaves, are fused with the base of the petiole and thereby form a stachelspitzige leaf sheath . The triangular leaf sheath is 0.3 to 0.8 centimeters long and has a 0.1 to 0.2 centimeter long spike tip.
Generative characteristics
The schirmrispen- , thyrsus- or panicle inflorescences are finely hairy or rarely bare and standing at a peduncle. The inflorescences contain several single stalked flowers. The slender flower stalks are 0.2 to 0.6 centimeters long and are mostly dense, rarely covered with fine white hairs.
The four-fold flowers are radial symmetry . The more or less jug-shaped flower cup is about 0.1 centimeters long. The sepals are fused together to form a calyx tube. The calyx lobes are about 1 to 1.5 millimeters long and 0.3 to 0.5 millimeters wide and are linear to almost oblong-spatulate. The fleshy, green to greenish yellow petals are fused together in the shape of a salver. The usually reddish purple corolla tube reaches a length of 0.3 to 0.9 centimeters and is finely haired, more rarely also bald. The four corolla lobes reach lengths of 0.3 to 0.4 centimeters and have no appendages on their straight or curved tips. The bilobe pen is fine hairs at the bottom.
The capsule fruits are approximately spherical in shape with a length of 0.25 to 0.3 centimeters and a thickness of 0.28 to 0.4 centimeters. The heavily furrowed endocarp is somewhat lignified. Each of the fruits contains several dark brown seeds. They are irregularly wedge-shaped, have a small wing and the seed coat is finely wrinkled.
Occurrence
The natural range of Kadua foggiana is on the Hawaii island of Kaua'i .
Taxonomy
The first description as Hedyotis foggiana was in 1943 by Francis Raymond Fosberg in Bulletin of the Bernice P. Bishop Museum. Honolulu . In 2005 Warren L. Wagner and David H. Lorence transferred the species as Kadua foggiana in Systematic Botany to the genus Kadua . A synonym for Kadua foggiana (Fosberg) WL Wagner & Lorence is Kadua longipedunculata Skottsb.
Individual evidence
- ↑ a b c d e f Kadua foggiana. In: Flora of the Hawaiian Islands. www.botany.si.edu/pacificislandbiodiversity/hawaiianflora, accessed on January 18, 2017 (English).
- ^ Hedyotis foggiana at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 18, 2017.
- ↑ Kadua foggiana. In: The Plant List. www.theplantlist.org, accessed January 18, 2017 (English).