Aglossorrhyncha

Aglossorrhyncha
	Aglossorrhyncha aurea , illustration
Systematics
Order :	Asparagales (Asparagales)
Family :	Orchids (orchidaceae)
Subfamily :	Epidendroideae
Tribe :	Arethuseae
Sub tribus :	Coelogyninae
Genre :	Aglossorrhyncha
Scientific name
	Aglossorrhyncha
	Schltr.

The genus aglossorrhyncha from the family of the orchid (Orchidaceae) consists of 13 species . The plants usually grow epiphytically , they occur in tropical Asia.

description

The stem axis of the Aglossorrhyncha species is rhizome-like and rooted in the lower part, and two rows of leaves in the upper part . The shoot is often compressed laterally, it can be unbranched or more often branched. The base of the leaves encompasses the shoot, they are usually of a firm, leathery texture, and their edge can be very finely serrated. The leaves are shed after a growing season.

The unresupinated flowers stand individually or in pairs at the end of the shoot, they are yellow to greenish and each have a relatively large bract . The bracts are thin paper-like and stick to the plant for a long time. Sepals and petals are roughly the same shape and do not grow together. The lip is often darker in color than the other petals, in the lower area it is concave with the edges rolled around the column , especially in the front area it is fleshy, along the lip runs a fleshy keel in the middle. The club-shaped column has a widening or appendage on the side of the scar ; The columnar tissue surrounding the stamen (clinandrium) also has a toothed appendage that is square in outline. The separating tissue between the stigma and the stamen (rostellum) is arranged across the column axis above the stigma. The stamen contains a total of four club-shaped pollinia in two chambers . The adhesive disc (Viscidium) is described as either summarizing two pollinia or not being present. The capsule fruit is broadly oval to rounded.

distribution

The species of the genus Aglossorrhyncha are common in tropical Asia. Most of the species are native to New Guinea , some also on the surrounding islands: the Moluccas , the Bismarck Archipelago , the Solomon Islands , Fiji , Vanuatu and Palau . According to Schuiteman, there are also occurrences in the Philippines. Altitudes from 350 to 2800 meters are populated. The plants grow epiphytically in moist forests, and at higher altitudes also terrestrially in montane bushes.

Systematics and botanical history

The genus Aglossorrhyncha was established in 1905 by Rudolf Schlechter . The name is made up of the negative prefix a- and the name of a similar genus, Glossorhyncha , from which Schlechter differentiated the new genus. In its original description it is called Aglossorrhyncha , which is considered a spelling mistake to be corrected. Dressler places them in a subtribe Glomerinae within the so-called Epidendreae II. He also places the genera Agrostophyllum , Earina , Glomera , Glossorhyncha , Ischnocentrum and Sepalosiphon in this subtribe . He separates two other related genera, Adrorhizon and Sirhookera , as the subtribe Adrorhizinae. A study by van den Berg et al. has shown that the eponymous genus Glomera is not closely related to the other plants, the group is now called Agrostophyllinae ; Aglossorrhyncha was not investigated in this study. It is unclear whether Aglossorrhyncha should now be placed together with Glomera in the subtribe Coelogyninae (tribe Arethuseae ), or together with the Agrostophyllinae is more closely related to the tribe Vandeae .

The following species are known in the genus Aglossorrhyncha :

Aglossorrhyncha aurea Schltr. : It occurs from the Bismarck Archipelago to the Solomon Islands.
Aglossorrhyncha biflora J.J.Sm. : It occurs from the Moluccas to Fiji and Vanuatu.
Aglossorrhyncha bilobula Kores : It occurs only on Viti Levu .
Aglossorrhyncha fruticicola J.J.Sm. : It occurs in western New Guinea.
Aglossorrhyncha galanthiflora J.J.Sm. : It occurs in western New Guinea.
Aglossorrhyncha jabiensis J.J.Sm. : It occurs in western New Guinea.
Aglossorrhyncha lucida Schltr. : With three varieties, all of which are found in Papua New Guinea.: It is found in western New Guinea.
- Aglossorrhyncha lucida var. Dischorensis Schltr.
- Aglossorrhyncha lucida var. Lucida
- Aglossorrhyncha lucida var. Wariana Schltr.
Aglossorrhyncha micronesiaca Schltr. : It only occurs on Palau .
Aglossorrhyncha peculiaris J.J.Sm. : It occurs in western New Guinea.
Aglossorrhyncha serrulata Schltr. : It occurs in Papua New Guinea.
Aglossorrhyncha stenophylla Schltr. : It occurs in Papua New Guinea.
Aglossorrhyncha torricellensis Schltr. : It occurs in Papua New Guinea.
Aglossorrhyncha viridis Schltr. : It occurs in New Guinea.

supporting documents

↑ ^a ^b ^c ^d ^e ^f ^g ^h Alec M. Pridgeon, Phillip Cribb, Mark W. Chase (eds.): Genera Orchidacearum. Epidendroideae (Part one) . 2nd Edition. tape 4/1 . Oxford University Press, New York and Oxford 2005, ISBN 0-19-850712-7 , pp. 33-35 .
↑ ^a ^b K. Senghas (Ed.): Rudolf Schlechter: Die Orchideen . 3. Edition. Volume I / A. Paul Parey, 1992, ISBN 3-489-78622-X , p. 375-377 .
↑ Rafaël Govaerts (ed.): Aglossorrhyncha. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew .
^ Robert L. Dressler: Phylogeny and Classification of the Orchid Family . Cambridge University Press, 1993, ISBN 0-521-45058-6 , pp. 196-197 .
^ Cássio van den Berg, Douglas H. Goldman, John V. Freudenstein, Alec M. Pridgeon, Kenneth M. Cameron, Mark W. Chase: An overview of the phylogenetic relationships within Epidendreae inferred from multiple DNA regions and recircumsription of Epidendreae and Arethuseae (Orchidaceae) . In: American Journal of Botany . tape 92 , no. 4 , 2005, p. 613-624 ( cassiovandenberg.com [PDF]). An overview of the phylogenetic relationships within Epidendreae inferred from multiple DNA regions and recircumsription of Epidendreae and Arethuseae (Orchidaceae) ( Memento of the original from November 16, 2016 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2
↑ Mark W. Chase, Kenneth M. Cameron, Russell L. Barrett, John V. Freudenstein: DNA data and Orchidaceae systematics: a new phylogenetic classification . In: KW Dixon, SP Kell, RL Barrett, PJ Cribb (eds.): Orchid conservation . Natural History Publications (Borneo), Kota Kinabalu 2003, p. 69-89 .
↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Rafaël Govaerts (Ed.): Aglossorrhyncha. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved July 4, 2018.

Web links

Commons : Aglossorrhyncha - album with pictures, videos and audio files

List of orchid genera

[GO-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h Alec M. Pridgeon, Phillip Cribb, Mark W. Chase (eds.): Genera Orchidacearum. Epidendroideae (Part one) . 2nd Edition. tape 4/1 . Oxford University Press, New York and Oxford 2005, ISBN 0-19-850712-7 , pp. 33-35 .

[Schlechter-2] K. Senghas (Ed.): Rudolf Schlechter: Die Orchideen . 3. Edition. Volume I / A. Paul Parey, 1992, ISBN 3-489-78622-X , p. 375-377 .

[Kew-3] Rafaël Govaerts (ed.): Aglossorrhyncha. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew .

[4] Robert L. Dressler: Phylogeny and Classification of the Orchid Family . Cambridge University Press, 1993, ISBN 0-521-45058-6 , pp. 196-197 .

[5] Cássio van den Berg, Douglas H. Goldman, John V. Freudenstein, Alec M. Pridgeon, Kenneth M. Cameron, Mark W. Chase: An overview of the phylogenetic relationships within Epidendreae inferred from multiple DNA regions and recircumsription of Epidendreae and Arethuseae (Orchidaceae) . In: American Journal of Botany . tape 92 , no. 4 , 2005, p. 613-624 ( cassiovandenberg.com [PDF]). An overview of the phylogenetic relationships within Epidendreae inferred from multiple DNA regions and recircumsription of Epidendreae and Arethuseae (Orchidaceae) ( Memento of the original from November 16, 2016 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2

[6] Mark W. Chase, Kenneth M. Cameron, Russell L. Barrett, John V. Freudenstein: DNA data and Orchidaceae systematics: a new phylogenetic classification . In: KW Dixon, SP Kell, RL Barrett, PJ Cribb (eds.): Orchid conservation . Natural History Publications (Borneo), Kota Kinabalu 2003, p. 69-89 .

[WCSP-7] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Rafaël Govaerts (Ed.): Aglossorrhyncha. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved July 4, 2018.