Lycium Fremontii
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Lycium Fremontii |
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Lycium fremontii is a plant type from the genus of Lycium ( Lycium ) in the family of the nightshade family (Solanaceae).
description
Lycium Fremontii is a 1 to 3 m tall, strong, tangled, branched shrub . Its leaves are hairy glandular, 8 to 35 mm long and 2 to 15 mm wide.
The flowers appear in two forms and are five-fold. The calyx is tubular and hairless to downy hairy. The calyx tube reaches a length of 4 to 8 mm, the calyx lobes are usually less than 1 mm long, only rarely do they reach a length of 2 mm. The crown is circular to broadly ovate, dark lavender or purple to white and provided with purple veins. The length of the corolla tube is 8 to 15 mm, the length of the corolla lobes corresponds to 1/4 to 2/5 of the length of the corolla tube. The stamens are hairless to densely tomentose at the base of the free-standing area.
The fruit is a red, elongated egg-shaped berry with a length of 5 to 9 mm. It contains 40 to 60 seeds .
The number of chromosomes is 2n = 96 or 120.
Occurrence
The species is widespread in North America , where it occurs in the Mexican states of Baja California , Baja California Sur and Sonora , as well as in the US states of Arizona and California .
Systematics
Internal system
Two varieties are distinguished within the species:
- Lycium Fremontii var. Fremontii
- Lycium Fremontii var. Congestum C.L. Hitchc.
External system
Within the box thorn ( Lycium ) the species is grouped according to phylogenetic studies in a clade with other North and South American species of the genus. The species is closely related to Lycium americanum , Lycium infaustum , Lycium exsertum , Lycium parishii , Lycium texanum , Lycium torreyi , Lycium berlandieri , Lycium andersonii , Lycium elongatum , Lycium athium and Lycium minimum .
literature
- JS Miller and RA Levin: Lycium Fremontii . In: Project Lycieae
- Rachel A. Levin et al .: Evolutionary Relationships in Tribe Lycieae (Solanaceae). In: DM Spooner, L. Bohs, J. Giovannoni, RG Olmstead and D. Shibata (eds.): Solanaceae VI: Genomics meets biodiversity. Proceedings of the Sixth International Solanaceae Conference, ISHS Acta Horticulturae 745, June 2007. ISBN 978-90-6605-427-1 . Pp. 225-239
Individual evidence
- ^ Lycium Fremontii at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
