Brodiaea kinkiensis
| Brodiaea kinkiensis | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Brodiaea kinkiensis |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Brodiaea kinkiensis | ||||||||||||
| S. Watson |
Brodiaea kinkiensis is a species of the genus Brodiaea in the asparagus family (Asparagaceae). This endemic occurs only on theisland of San Clemente ,which belongs to the California Channel Islands .
description
Vegetative characteristics
Brodiaea kinkiensis grows as a perennial herbaceous plant . Plant tubers are formed as persistence organs . It is the Brodiaea species that produces only one narrow leaf per tuber during the growing season .
Generative characteristics
The flowering period on the home island extends from May to June. The slender inflorescence stem is only 2 to 3 inches long. At the end of the inflorescence stem there is an open, golden inflorescence . The bracts also cases, this is still in bud during the inflorescence, not completely. There are also cover sheets . The flower stalk is 1 to 4 inches long.
The hermaphrodite flowers are radial symmetry and threefold. There are two circles, each with three bracts , which are fused at their base. The three outer bracts are slightly narrower than the inner three, which are round with a broadly rounded upper end. The six purple or violet bracts are fused into a narrow, bell-shaped, opaque flower tube with a length of 9 to 12 millimeters, which also pops open until it is not fruit ripe. The corolla is a total of 14 to 24 millimeters long and the free part of the bracts is usually more than twice as long as the flower tube. The free part of the bracts is wide-spread with a length of 12 to 18 millimeters. In Brodiaea kinkiensis there are three sterile stamens, i.e. staminodes , which are located within the bracts and are fused with them , which resemble small petals and each face the outer bracts. In the upright staminodes, which are relatively far away from the stamens, the width of 3 to 7 millimeters is linear and the upper end is sharply pointed. The three fertile stamens are located opposite the inner bracts and are also fused at the base of the envelope. The base of the only 1.5 to 2 millimeters long stamens is not triangular and has a narrow wing on the underside, but no appendages. The size and shape of the stamens and the structures at the base of the stamens are important determinants for the Brodiaea species. The anthers are linear with a length of 4 to 7 millimeters and the upper end is broadly notched. Three carpels are long to a 6 to 9 mm, three crests membered ovary grown. The 5 to 7 millimeter long stylus ends in a three-lobed scar .
The egg-shaped capsule fruits open in folds = loculicide. The seeds are black.
Chromosome set
The basic chromosome number is x = 16; there is diploidy with a chromosome number of 2n = 32.
Occurrence and endangerment
Brodiaea kinkiensis occurs only on the island of San Clemente off California . It only thrives on the plains on Table Mountain on clay soils at altitudes of 100 to 200 meters.
Brodiaea kinkiensis is under protection.
Taxonomy
The first description of Brodiaea kinkiensis In 1966 by Theodore F. Niehaus in Madroño , Volume 18, Issue 8, pages 233-235. TF Niehaus 407 (Institution: HT: UC-1200400) was deposited as type material .
Individual evidence
- ↑ a b Rafaël Govaerts (Ed.): Brodiaea kinkiensis. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 3, 2020.
- ↑ a b c d e f g h i j J. Chris Pires: In: Flora of North America Editorial Committee (Hrsg.): Flora of North America North of Mexico. Volume 26: Magnoliophyta: Liliidae: Liliales and Orchidales , Oxford University Press, New York and Oxford, 2002, ISBN 0-19-515208-5 . Brodiaea kinkiensis TF Niehaus , p. 326 - online with the same text as the printed work .
- ↑ a b c d e J. Chris Pires, Robert E. Preston: Brodiaea , 2012: Brodiaea kinkiensis data sheet in Jepson Flora Project (ed.): Jepson eFlora .
- ↑ a b Brodiaea kinkiensis at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 3, 2020.
