Nicotiana sect. Noctiflorae
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Nicotiana sect. Noctiflorae is a section of the tobacco genus ( Nicotiana ). Six species are counted to it.
description
The species of the Noctiflorae section are annual or perennial herbaceous plants or small trees . The leaves are sessile or stalked, finely downy to sticky hairy . Most of the leaves have a whitish tint. The leaf margin is often irregularly nicked or curled.
The flowers open either during the day or at night. The crown is radially symmetrical, tubular to salver plate and can be colored red, yellow or white. The corolla tube is straight or widened towards the tip. The corolla lobes are usually rounded.
The number of chromosomes is n = 12.
distribution
The species are common in South America .
Systematics
The following species are included in the Noctiflorae section :
- Nicotiana acaulis Speg.
- Nicotiana ameghinoi Speg.
- Nicotiana glauca Graham
- Nicotiana noctiflora Hook
- Nicotiana paa Mart. Crov.
- Nicotiana petuniodes (Griseb.) Millán
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.