Solanum albornozii
| Solanum albornozii | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Solanum albornozii | ||||||||||||
| Correll |
Albornozii Solanum , a plant is art from the section Petota in the genus of Solanaceae ( Solanum ).
description
Vegetative characteristics
Solanum albornozii is a 0.4 to 1 m high herbaceous plant . The stems are 3 to 5 cm thick at the base, hairless and can be winged with wings up to 0.21 mm wide. The sympodial units have three to many leaves , but these are never in pairs. The leaves are pinnate odd numbers. The leaf blade has a length of 10.5 to 26 cm and a width of 6.6 to 14 cm, it is leathery and shiny. The underside is light green in color and hairless or initially covered with very short trichomes and later balding, the top is dark green in color and hairless. On each side of the leaf axis there are five to seven sub-leaves of the first order, with the middle ones being the largest. The outer partial leaves have a length of 3 to 8.5 cm and a width of 0.7 to 2.2 cm, are elliptical, pointed to pointed towards the front, the base is short-stalked or sessile and slightly descending at the base. They are slightly larger on the side facing towards the base. The terminal partial leaf is almost the same size or smaller than the lateral partial leaves, it reaches a length between 3.7 and 6.5 and a width of 0.9 to 2 cm, is elliptical, pointed or pointed towards the front and wedge-shaped at the base . Between the main leaves are 14 to 85 egg-shaped to circular inserted leaves that are sessile or have short stalk. The petiole has a length of 1 to 5.5 cm and is hairless. The pseudo stipules are 3 to 5 mm long and completely or almost hairless.
Inflorescences and flowers
The inflorescences are terminal and are accompanied by an axillary bud and are usually only in the outer half of the plant. They reach a length of 6 to 10 cm, are mostly forked and consist of 22 to 86 flowers . The inflorescence axes are hairless, the inflorescence stalk is 0.5 to 10.4 cm long, the flower stalks are 5 to 10 cm apart and are 10 to 24 mm long both for flowering and for fruit ripening and are joint-like curved in the upper half.
The five-fold flowers do not appear with differently built styles . The calyx is 4 to 9 mm long, of which the calyx tube makes up about 1 to 3 mm and the calyx lobes 2 to 5 cm. The latter are egg-shaped to lanceolate, with 0.4 to 3 mm long strongly narrowed tips and hairless. The crown measures 2 to 3.7 mm in diameter, is pentagonal to wheel-shaped-pentagonal, colored white and provided with a purple stripe on the back of the corolla lobes. The corolla tube is 1.2 mm long, the coronet has tips 0.5 to 0.8 mm long, the corners of the coronet are flat and slightly folded backwards.
The stamens consist of 1 to 2 mm long stamens and 4 to 8 mm long anthers . The anthers are lanceolate, yellow in color and tilted together. They first open through pores at the tips, which later expand into slits. The ovary is hairless, the straight, hairless style is 3 to 10 mm long, 1 mm wide and protrudes over the stamens by about 0.9 to 4 mm. The scar is club-shaped to head-shaped.
Fruits and seeds
The fruits are egg-shaped, 1.1 to 1.4 cm in diameter, hairless and medium green berries . The seeds are egg-shaped and about 2 mm long, whitish to greenish in color and dry brownish. They are densely covered with hair-like outgrowths from the outer seminal wall cells so that the seeds become slimy when moist.
Chromosome number
The number of chromosomes is 2n = 24.
Occurrence
The species is only known from four locations in the Ecuadorian provinces of Loja and Azuay. It grows there between bushes on slopes at altitudes between 2350 and 3400 meters.
Danger
Due to the relatively small distribution area and the associated risk of destruction of the sites, the species is classified in the IUCN's Red List of Threatened Species as " endangered ".
literature
- DM Spooner and M. Ames: Solanum albornozii . In: PBI Solanum: A worldwide treatment , online, accessed April 28, 2009.
- R. Montúfar and N. Pitman: Solanum albornozii . In: 2008 IUCN Red List of Threatened Species , online, accessed April 28, 2009.
Individual evidence
- ↑ Solanum albornoziiProjektID = 9 at Tropicos.org. Missouri Botanical Garden, St. Louis