The morphologically deviating genera Omphalodiella and Placoparmelia belong to Xanthoparmelia (Parmeliaceae)

Guillermo Amo De Paz; H. Thorsten Lumbsch; Paloma Cubas; John A. Elix; Ana Crespo

doi:10.1639/0007-2745-113.2.376

The morphologically deviating genera Omphalodiella and Placoparmelia belong to Xanthoparmelia (Parmeliaceae)

Guillermo Amo De Paz, H. Thorsten Lumbsch, Paloma Cubas, John A. Elix, Ana Crespo

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The monotypic genera Omphalodiella and Placoparmelia were described from Patagonia (Argentina). The latter is characterized by placodioid species, morphologically similar to some subcrustose, brown Xanthoparmelia species, whereas Omphalodiella is a peltate lichen. Analyses of ribosomal DNA sequences supported their placement in the parmelioid clade. Both genera are nested within Xanthoparmelia. Affinites to the latter genus are congruent with the presence of Xanthoparmelia-type lichenan in the hyphal cell walls and an arachiform vacuolar body in the ascospores, two key characters typical of Xanthoparmelia. Consequently we propose to place the generic names in synonymy with Xanthoparmelia and transfer the two species to the latter genus as X. patagonica and X. peltata comb. nov.

Original language	English
Pages (from-to)	376-386
Number of pages	11
Journal	Bryologist
Volume	113
Issue number	2
DOIs	https://doi.org/10.1639/0007-2745-113.2.376
Publication status	Published - Jun 2010

Access to Document

10.1639/0007-2745-113.2.376

Cite this

@article{a3d98aa590ef4688aae134e684176f6f,

title = "The morphologically deviating genera Omphalodiella and Placoparmelia belong to Xanthoparmelia (Parmeliaceae)",

abstract = "The monotypic genera Omphalodiella and Placoparmelia were described from Patagonia (Argentina). The latter is characterized by placodioid species, morphologically similar to some subcrustose, brown Xanthoparmelia species, whereas Omphalodiella is a peltate lichen. Analyses of ribosomal DNA sequences supported their placement in the parmelioid clade. Both genera are nested within Xanthoparmelia. Affinites to the latter genus are congruent with the presence of Xanthoparmelia-type lichenan in the hyphal cell walls and an arachiform vacuolar body in the ascospores, two key characters typical of Xanthoparmelia. Consequently we propose to place the generic names in synonymy with Xanthoparmelia and transfer the two species to the latter genus as X. patagonica and X. peltata comb. nov.",

keywords = "Molecular phylogeny, Parmelioid genera, lichenan, taxonomy",

author = "{De Paz}, {Guillermo Amo} and Lumbsch, {H. Thorsten} and Paloma Cubas and Elix, {John A.} and Ana Crespo",

year = "2010",

month = jun,

doi = "10.1639/0007-2745-113.2.376",

language = "English",

volume = "113",

pages = "376--386",

journal = "Bryologist",

issn = "0007-2745",

publisher = "American Bryological and Lichenological Society Inc.",

number = "2",

}

TY - JOUR

T1 - The morphologically deviating genera Omphalodiella and Placoparmelia belong to Xanthoparmelia (Parmeliaceae)

AU - De Paz, Guillermo Amo

AU - Lumbsch, H. Thorsten

AU - Cubas, Paloma

AU - Elix, John A.

AU - Crespo, Ana

PY - 2010/6

Y1 - 2010/6

N2 - The monotypic genera Omphalodiella and Placoparmelia were described from Patagonia (Argentina). The latter is characterized by placodioid species, morphologically similar to some subcrustose, brown Xanthoparmelia species, whereas Omphalodiella is a peltate lichen. Analyses of ribosomal DNA sequences supported their placement in the parmelioid clade. Both genera are nested within Xanthoparmelia. Affinites to the latter genus are congruent with the presence of Xanthoparmelia-type lichenan in the hyphal cell walls and an arachiform vacuolar body in the ascospores, two key characters typical of Xanthoparmelia. Consequently we propose to place the generic names in synonymy with Xanthoparmelia and transfer the two species to the latter genus as X. patagonica and X. peltata comb. nov.

AB - The monotypic genera Omphalodiella and Placoparmelia were described from Patagonia (Argentina). The latter is characterized by placodioid species, morphologically similar to some subcrustose, brown Xanthoparmelia species, whereas Omphalodiella is a peltate lichen. Analyses of ribosomal DNA sequences supported their placement in the parmelioid clade. Both genera are nested within Xanthoparmelia. Affinites to the latter genus are congruent with the presence of Xanthoparmelia-type lichenan in the hyphal cell walls and an arachiform vacuolar body in the ascospores, two key characters typical of Xanthoparmelia. Consequently we propose to place the generic names in synonymy with Xanthoparmelia and transfer the two species to the latter genus as X. patagonica and X. peltata comb. nov.

KW - Molecular phylogeny

KW - Parmelioid genera

KW - lichenan

KW - taxonomy

UR - http://www.scopus.com/inward/record.url?scp=77954496101&partnerID=8YFLogxK

U2 - 10.1639/0007-2745-113.2.376

DO - 10.1639/0007-2745-113.2.376

M3 - Article

SN - 0007-2745

VL - 113

SP - 376

EP - 386

JO - Bryologist

JF - Bryologist

IS - 2

ER -

The morphologically deviating genera Omphalodiella and Placoparmelia belong to Xanthoparmelia (Parmeliaceae)

Abstract

Access to Document

Other files and links

Fingerprint

Cite this