Systematics and the segregation of Encyclia

Higgins W.E., . (2005) Systematics and the segregation of Encyclia. [Proceedings Paper]

Previous taxonomic treatments of Encyclia a series of lumping and splitting events have resulted in a complex succession of invalid and misapplied nomenclature involving eight generic names: Epidendrum L. Encyclia Hook. Dichaea Lindl. Prosthechea Knowles and Westc. Epithecia Knowles and Westc. Hormidium Lindl. ex Heynold Anacheilium Hoffmanns. and Microepidendrum Brieger. This classical case of nomenclatural confusion has resulted in a problematic taxonomic classification of the genus Encyclia. Soon after W.J. Hooker established the genus J. Lindley combined it with Epidendrum. In 1881 G. Bentham subdivided the section Encyclium into three series: Dinema Prosthechea and Encyclia. Schlechter revived usage of Encyclia at the generic level in 1914. In 1961 R. Dressler redefined Encyclia expanding on Benthams concepts. No sooner did Dressler assemble the genus than other taxonomists began to disassemble it. In 1960 F.G. Brieger started moving taxa into Hormidium. Pabst refined Briegers concepts in 1981 and moved additional taxa. In 1997 W.E. Higgins resurrected the genus Prosthechea for Encyclia subgenus Osmophytum. In 2000 Higgins used nuclear and plastid DNA sequence data to estimate the phylogeny of Encyclia sensu Dressler. The Internal Transcribed Spacer nrITS trnL-F and matK regions were sequenced. DNA sequence plus indel matrix was analysed with a successively weighted parsimony analysis. Bootstrap indices were used to estimate confidence in tree topology. As a result of this work the genus Encyclia sensu Dressler has been divided into six genera: Encyclia Euchile Dinema Oestlundia Prosthechea and Microepidendrum.

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Abstract

Previous taxonomic treatments of Encyclia a series of lumping and splitting events have resulted in a complex succession of invalid and misapplied nomenclature involving eight generic names: Epidendrum L. Encyclia Hook. Dichaea Lindl. Prosthechea Knowles and Westc. Epithecia Knowles and Westc. Hormidium Lindl. ex Heynold Anacheilium Hoffmanns. and Microepidendrum Brieger. This classical case of nomenclatural confusion has resulted in a problematic taxonomic classification of the genus Encyclia. Soon after W.J. Hooker established the genus J. Lindley combined it with Epidendrum. In 1881 G. Bentham subdivided the section Encyclium into three series: Dinema Prosthechea and Encyclia. Schlechter revived usage of Encyclia at the generic level in 1914. In 1961 R. Dressler redefined Encyclia expanding on Benthams concepts. No sooner did Dressler assemble the genus than other taxonomists began to disassemble it. In 1960 F.G. Brieger started moving taxa into Hormidium. Pabst refined Briegers concepts in 1981 and moved additional taxa. In 1997 W.E. Higgins resurrected the genus Prosthechea for Encyclia subgenus Osmophytum. In 2000 Higgins used nuclear and plastid DNA sequence data to estimate the phylogeny of Encyclia sensu Dressler. The Internal Transcribed Spacer nrITS trnL-F and matK regions were sequenced. DNA sequence plus indel matrix was analysed with a successively weighted parsimony analysis. Bootstrap indices were used to estimate confidence in tree topology. As a result of this work the genus Encyclia sensu Dressler has been divided into six genera: Encyclia Euchile Dinema Oestlundia Prosthechea and Microepidendrum.

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Item Type:	Proceedings Paper
Additional Information:	Summary En
AGROVOC Term:	Taxonomy
AGROVOC Term:	Orchidaceae
AGROVOC Term:	Genus
AGROVOC Term:	Gnero taxn
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/16542

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