Iochroma lehmannii

from Wikipedia, the free encyclopedia
Iochroma lehmannii
Systematics
Asterids
Euasterids I
Order : Nightshade (Solanales)
Family : Nightshade family (Solanaceae)
Genre : Violet Bushes ( Iochroma )
Type : Iochroma lehmannii
Scientific name
Iochroma lehmannii
Bitter

Iochroma lehmannii is a plant type from the genus of iochroma ( Iochroma ) in the family of the nightshade family (Solanaceae).

description

Iochroma lehmannii is a small tree that grows 4 to 10 meters tall. Its young branches are somewhat purple and covered with triangular scales. The leaves are elliptical to lanceolate, 4 to 18.5 inches long and 2.5 to 10 inches wide.

The inflorescences consist of two to six flowers . The calyx is 5 to 7 millimeters long and not inflated. The yellow-green crown is funnel-shaped to bell-shaped and 2 to 3.5 centimeters long. Their inside is hairless, the outside hairy. The stamens become 1.5 to 2 centimeters long and are hairless or only sparsely hairy at the base. The anthers reach a length of 4 to 7 millimeters. The pollen consists of pollen grains with a diameter of 28 to 33 micrometers. The stylus is 1.2 to 1.6 millimeters long.

The fruit is a spherical or slightly conical berry with a diameter of 1 to 1.6 millimeters, which is surrounded by a greatly enlarged calyx.

Systematics

Phylogenetic studies classify the species with Iochroma squamosum in a common clade (clade L according to Smith & Baum 2006). Iochroma lehmannii is probably a parent species of the natural hybrid Iochroma ayabacense together with Iochroma cyaneum .

Spread and endangerment

Specimens of Iochroma lehmannii were mainly collected in southern Ecuador and neighboring Peru . The IUCN classifies this species as vulnerable (endangered), but recommends a review of this status.

proof

literature

  • Stacey DeWitt Smith, Vanessa J. Kolberg, and David A. Baum: Morphological and Cytological Evidence for Homoploid Hybridization in Iochroma (Solanaceae). In: Madrono , Volume 55, Number 4, 2008. pp. 280-284. doi : 10.3120 / 0024-9637-55.4.280

Individual evidence

  1. ↑ Stacey DeWitt Smith and David A. Baum: Phylogenetics of the Florally Diverse Andean Clade Iochrominae (Solanaceae) . In: American Journal of Botany , Volume 93, Number 8, 2006. pp. 1140-1153.
  2. ↑ Stacey DeWitt Smith and Segundo Leiva Gonzales: A New Species of Iochroma (Solanaceae) from Ecuador . In: Novon , Volume 21, Number 4, 2011. pp. 491-495. doi : 10.3417 / 2010061
  3. ^ World Conservation Monitoring Center 1998. Iochroma lehmannii . 2006 IUCN Red List of Threatened Species. Retrieved June 20, 2012.