Duckeodendron cestroides

Duckeodendron cestroides
Systematics
	Asterids
	Euasterids I
Order :	Nightshade (Solanales)
Family :	Nightshade family (Solanaceae)
Genre :	Duckeodendron
Type :	Duckeodendron cestroides
Scientific name of the genus
	Duckeodendron
	Kuhlm.
Scientific name of the species
	Duckeodendron cestroides
	Kuhlm.

Duckeodendron cestroides a plant is art from the family of nightshade family (Solanaceae). It is the only species in the genus Duckeodendron . The systematic position of this tree, which occurs in Brazil, was not clarified for a long time, so that the species was also listed as the monotypic family Duckeodendraceae.

description

Duckeodendron cestroides is a large tree, the height of which is specified as 16 meters and more or (in the first description) up to 30 meters, the diameter at chest height reaches over 150 centimeters. It does not contain milk juice, nor does it have a colored juice. The leaves are alternate, without stipules, simple and not glandular-spotted. The leaf blade is entire. The estimated maximum age of individual trees is over 800 years.

The flowers are in zymose , terminal or almost terminal inflorescences from a few flowers. They are fivefold and bisexual. The sepals are partially fused to form a regular, cylindrical calyx tube, the calyx lobes are significantly shorter than the tube. The crown is funnel-shaped with a long corolla tube and short corolla lobes. The five stamens protrude above the crown, stand free from each other and are completely fertile. The anthers are barely 2 to 2.5 millimeters long and fixed dorsally to basally and open via inwardly directed longitudinal slits. The ovary consists of two carpels with one ovule , of which, however stunted one.

The fruit is a red, shiny, fleshy, non-popping stone fruit , with a size of 5.5 to 6 × 2.5 to 3 centimeters which contains only one seed . The embryo is horseshoe-shaped and has only very short cotyledons .

distribution

The species is found in forests of neotropical Brazil .

Systematics

Although already suspected in the first description, the assignment of the species to the nightshade family was questioned for a long time. For example, includes Armando Hunziker in his Solanaceae system this from the family and assigns them to a monotypic family Duckeodendraceae.

Molecular biological studies have shown, however, that Duckeodendron and the genera that belong to the Goetzeaceae, as well as Metternichia, belong to the nightshade family. Richard Olmstead leads them in his family system in a subfamily Goetzeoideae.

Duckeodendron

	Goetzea

Cladogram simplified to

Botanical history

The species Duckeodendron cestroides and the genus Duckeodendron were first described by João Geraldo Kuhlmann in 1925 . The name honors Adolpho Ducke (1876–1959), an Austro-Brazilian botanist, entomologist and ethnographer, an explorer of the Amazon region.

proof

↑ ^a ^b ^c ^d ^e Armando T. Hunziker: The Genera of Solanaceae . ARG Gantner Verlag KG, Ruggell, Liechtenstein 2001, ISBN 3-904144-77-4 .
↑ ^a ^b João Geraldo Kuhlmann: Contribuição para o conhecimento de algumas plantas novas, contendo tambem um trabalho de critica e novas combinaçõnes . In: Archivos Do Jardim Botanico Do Rio De Janeiro , Volume IV, 1925. pp. 347-368
^ ^A ^b William F. Laurance et al .: Inferred longevity of Amazonian rainforest trees based on a long-term demographic study . In: Forest Ecology and Management , Volume 190, Issue 2-3, March 2004. pp. 131-143. doi : 10.1016 / j.foreco.2003.09.011
↑ ^a ^b ^c ^d L. Watson and MJ Dallwitz: Duckeodendraceae . In: Delta Intkey: The families of flowering plants: descriptions, illustrations, identification, and information retrieval . From 1992, May 18, 2012 version, accessed August 24, 2012
^ ^A ^b Eugenio Santiago-Valentin and Richard G. Olmstead: Phylogenetics of the Antillean Goetzeoideae (Solanaceae) and Their Relationships within the Solanaceae based on Chloroplast and ITS DNA Sequence Data . In: Systematic Botany , Volume 28, Issue 2. pp. 452-460.
^ Frans A. Stafleu and Richard S. Cowan: Taxonomic Literature , Volume I: A – G , 2nd edition, Bohn, Scheltema & Holkema, 1976. p. 690.
↑ Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]

[Hunziker01-1] Armando T. Hunziker: The Genera of Solanaceae . ARG Gantner Verlag KG, Ruggell, Liechtenstein 2001, ISBN 3-904144-77-4 .

[Kuhlmann1925-2] João Geraldo Kuhlmann: Contribuição para o conhecimento de algumas plantas novas, contendo tambem um trabalho de critica e novas combinaçõnes . In: Archivos Do Jardim Botanico Do Rio De Janeiro , Volume IV, 1925. pp. 347-368

[Laurance04-3] A ^b William F. Laurance et al .: Inferred longevity of Amazonian rainforest trees based on a long-term demographic study . In: Forest Ecology and Management , Volume 190, Issue 2-3, March 2004. pp. 131-143. doi : 10.1016 / j.foreco.2003.09.011

[Watson92-4] L. Watson and MJ Dallwitz: Duckeodendraceae . In: Delta Intkey: The families of flowering plants: descriptions, illustrations, identification, and information retrieval . From 1992, May 18, 2012 version, accessed August 24, 2012

[Santiago03-5] A ^b Eugenio Santiago-Valentin and Richard G. Olmstead: Phylogenetics of the Antillean Goetzeoideae (Solanaceae) and Their Relationships within the Solanaceae based on Chloroplast and ITS DNA Sequence Data . In: Systematic Botany , Volume 28, Issue 2. pp. 452-460.

[Stafleu76-6] Frans A. Stafleu and Richard S. Cowan: Taxonomic Literature , Volume I: A – G , 2nd edition, Bohn, Scheltema & Holkema, 1976. p. 690.

[Burkhardt2018-7] Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]