Cyphanthera
| Cyphanthera | ||||||||||||
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Cyphanthera albicans subsp. notabilis |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Cyphanthera | ||||||||||||
| Miers |
Cyphanthera is a genus ofplantsfromthe nightshade family (Solanaceae) endemic to southern Australia . It consists of nine types .
description
Vegetative characteristics
Cyphanthera species are shrubs with very pronounced hairs. This can be fine, sticky or light or woolly tomentose, the trichomes are glandular, branched or branched like a tree. The leaves are mostly sessile, only rarely provided with petioles up to 10 mm long. The leaf blade is ovate to narrow or broadly ovate, elliptical to ovoid-elliptical or vice versa ovate, 5 to 55 (rarely up to 90) mm long or only (1) 2 to 7 (10) mm long.
Inflorescences and flowers
The flowers are individually or in small zymösen groups traubigen , panicle or ährigen inflorescences . The flower stalks are 0.5 to 20 mm long. The calyx is 2 to 7 (10) mm long, the crown is funnel-shaped to bell-shaped and 5 to 12 (22) mm long. The corolla lobes are of the same shape, the same length or only slightly longer or shorter than the corolla tube. The male and female flower components do not protrude beyond the crown.
The four stamens come in two forms, occasionally a staminodium is also present. The anthers consist of a single theka that is 0.85 to 1.3 mm long. The scar is slightly bilobed.
Fruits and seeds
The fruits are 3.5 to 5 mm long capsules , the septum-fold cracks open, have four chambers and contain only a few (about six) seeds . These are (1.6) 2.1 to 3.5 mm long, the embryo is almost straight.
Other features
The base chromosome number is . In addition to tropane alkaloids , three out of eight species examined contained alkaloids typical of tobacco .
Occurrence
The genus grows endemically in the temperate south of Australia .
Systematics
The genus consists of nine species:
- Cyphanthera albicans (Cunn.) Miers
- Cyphanthera anthocercidea (F. Muell.) Haegi
- Cyphanthera microphylla Miers
- Cyphanthera miersiana Haegi
- Cyphanthera myosotidea (F. Muell.) Haegi
- Cyphanthera odgersii (F. Muell.) Haegi
- Cyphanthera ovalifolia Endl.
- Cyphanthera racemosa (F. Muell.) Haegi
- Cyphanthera tasmanica Miers
literature
- Armando T. Hunziker: The Genera of Solanaceae . ARG Gantner Verlag KG, Ruggell, Liechtenstein 2001. ISBN 3-904144-77-4 .
Web links
- Cyphanthera in the Flora of Western Australia