Nicotiana sect. Suaveolentes
| Nicotiana sect. Suaveolentes | ||||||||||||
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Nicotiana benthamiana |
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| Nicotiana sect. Suaveolentes | ||||||||||||
| Goodsp. |
Nicotiana sect. Suaveolentes is a section of the tobacco genus ( Nicotiana ). 26 species are counted to it.
description
The species in the Suaveolentes section are herbaceous plants that usually form a rosette , but occasionally this is not clearly pronounced. The leaves are sessile or winged-stalked and sticky hairy .
The flowers either open at night or are cleistogamous and do not open at all. The crown is slightly zygomorphic or radial symmetry, salver-shaped and colored white. The corolla tube is straight or too enlarged to the tip. The corolla lobes are rounded.
The number of chromosomes is n = 16, n = 18, n = 19, n = 20, n = 21 or n = 22.
distribution
The species are common in Australia and New Caledonia , but can also be found in Namibia .
Systematics
The following species are included in the Suaveolentes section :
- Nicotiana africana Merxm.
- Nicotiana amplexicaulis NTBurb.
- Nicotiana benthamiana Domin
- Nicotiana burbidgeae Symon
- Nicotiana cavicola NTBurb.
- Nicotiana Debneyi Domin
- Nicotiana excelsior (JMBlack) JMBlack
- Nicotiana exigua H.-M. Wheeler
- Nicotiana fragrans Hooker
- Nicotiana goodspeedii H. M.Wheeler
- Nicotiana gossei Domin
- Nicotiana hesperis NTBurb.
- Nicotiana heterantha Kenneally & Symon
- Nicotiana ingulba JMBlack
- Nicotiana maritima H.-M.Wheeler
- Nicotiana megalosiphon Van Huerck & Müll.Arg.
- Nicotiana occidentalis H.-M. Wheeler
- Nicotiana rosulata (S. Moore) Domin
- Nicotiana rotundifolia Lindl.
- Nicotiana simulans NTBurb.
- Nicotiana stenocarpa H.-M. Wheeler
- Nicotiana suaveolens clay
- Nicotiana truncata DE Symon
- Nicotiana umbratica NTBurb.
- Nicotiana velutina H.-M. Wheeler
- Nicotiana wuttkei Clarkson & Symon
proof
- Sandra Knapp, Mark W. Chase and James J. Clarkson: Nomenclatural changes and a new sectional classification in Nicotiana (Solanaceae) . In: Taxon , Volume 53, Number 1, February 2004. pp. 73-82.