The corticolous and lignicolous species of Bacidia and Bacidina in North America
(1996)- Abstract
- This is a taxonomic revision of the corticolous and lignicolous taxa of the genera Bacidia and Bacidina (Lecanoraceae, Lecanorales, lichenized Ascomycotina) in the continental United States and Canada. Twenty-seven species of Bacidia (one of which is divided into two subspecies) and twelve species of Bacidina are recognized. The morphology, secondary chemistry, ecology, and phytogeography of these species are discussed, and a key is provided. Apothecium pigmentation, thallus composition, presence of crystals in the proper exciple, hymenium height, thickness of paraphyses, spore shape and size, in Bacidina sometimes also conidial type and tholus structure, have proved to be the most important characters to distinguish between species.... (More)
- This is a taxonomic revision of the corticolous and lignicolous taxa of the genera Bacidia and Bacidina (Lecanoraceae, Lecanorales, lichenized Ascomycotina) in the continental United States and Canada. Twenty-seven species of Bacidia (one of which is divided into two subspecies) and twelve species of Bacidina are recognized. The morphology, secondary chemistry, ecology, and phytogeography of these species are discussed, and a key is provided. Apothecium pigmentation, thallus composition, presence of crystals in the proper exciple, hymenium height, thickness of paraphyses, spore shape and size, in Bacidina sometimes also conidial type and tholus structure, have proved to be the most important characters to distinguish between species. Circumscriptions of Bacidia and Bacidina are attempted. Tholus structure, cell structure of the proper exciple, presence of goniocysts, presence of crystals in the thallus cortex, and size of conidiogenous cells are the most valuable characters in the delimitation of these genera. Nine new taxa are described: Bacidia diffracta, B. helicospora, B. salmonea, Bacidina aenea, Bn. californica, Bn. crystallifera, Bn. ramea, Bn. squamellosa, and Bn. varia. Twelve new combinations are introduced: Bacidia campalea, Bacidia laurocerasi subsp. idahoensis, Bacidina assulata, Bn. egenuloidea, Byssoloma meadii, Fellhanera floridana, Herteliana alaskensis, Lecania stigmatella, L. subfuscula, Pachyphiale gyalizella, Ropalospora phaeoplaca, and Ophioparma rubricosa. In addition to the newly described species, 12 species of Bacidia and four species of Bacidina are correctly reported from the study area for the first time. The genera Psorella and Toniniopsis are reduced into synonymy with Bacidia. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/17734
- author
- Ekman, Stefan
- supervisor
- opponent
-
- Prof. Jørgensen, Per Magnus, Botanisk Institutt, Universitetet i Bergen
- publishing date
- 1996
- type
- Thesis
- publication status
- published
- subject
- keywords
- Systematisk botanik, chemotaxonomy. Physiology of nonvascular plants, Systematic botany, taxonomy, morphology, Toniniopsis, Psorella, Ophioparma, Ropalospora, Pachyphiale, Lecania, Herteliana, Fellhanera, Byssoloma, conidia, pigments, phytogeography, ecology, North America, lichens, Lecanorales, Bacidia, Bacidina, morfologi, taxonomi, kemotaxonomi, Växters fysiologi (inte kärlväxter).
- pages
- 148 pages
- publisher
- Systematic Botany
- defense location
- Department of Ecology
- defense date
- 1996-09-21 13:00:00
- external identifiers
-
- other:ISRN: LUNBDS/(NBBS-1023)/1-148/(1996)
- scopus:0030480649
- ISBN
- 87-88702-21-9
- language
- English
- LU publication?
- no
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Department of Ecology (Closed 2011) (011006010)
- id
- e76b5b4f-140b-477e-aa52-cf25730e0850 (old id 17734)
- date added to LUP
- 2016-04-04 11:48:07
- date last changed
- 2022-02-13 21:48:24
@phdthesis{e76b5b4f-140b-477e-aa52-cf25730e0850, abstract = {{This is a taxonomic revision of the corticolous and lignicolous taxa of the genera Bacidia and Bacidina (Lecanoraceae, Lecanorales, lichenized Ascomycotina) in the continental United States and Canada. Twenty-seven species of Bacidia (one of which is divided into two subspecies) and twelve species of Bacidina are recognized. The morphology, secondary chemistry, ecology, and phytogeography of these species are discussed, and a key is provided. Apothecium pigmentation, thallus composition, presence of crystals in the proper exciple, hymenium height, thickness of paraphyses, spore shape and size, in Bacidina sometimes also conidial type and tholus structure, have proved to be the most important characters to distinguish between species. Circumscriptions of Bacidia and Bacidina are attempted. Tholus structure, cell structure of the proper exciple, presence of goniocysts, presence of crystals in the thallus cortex, and size of conidiogenous cells are the most valuable characters in the delimitation of these genera. Nine new taxa are described: Bacidia diffracta, B. helicospora, B. salmonea, Bacidina aenea, Bn. californica, Bn. crystallifera, Bn. ramea, Bn. squamellosa, and Bn. varia. Twelve new combinations are introduced: Bacidia campalea, Bacidia laurocerasi subsp. idahoensis, Bacidina assulata, Bn. egenuloidea, Byssoloma meadii, Fellhanera floridana, Herteliana alaskensis, Lecania stigmatella, L. subfuscula, Pachyphiale gyalizella, Ropalospora phaeoplaca, and Ophioparma rubricosa. In addition to the newly described species, 12 species of Bacidia and four species of Bacidina are correctly reported from the study area for the first time. The genera Psorella and Toniniopsis are reduced into synonymy with Bacidia.}}, author = {{Ekman, Stefan}}, isbn = {{87-88702-21-9}}, keywords = {{Systematisk botanik; chemotaxonomy. Physiology of nonvascular plants; Systematic botany; taxonomy; morphology; Toniniopsis; Psorella; Ophioparma; Ropalospora; Pachyphiale; Lecania; Herteliana; Fellhanera; Byssoloma; conidia; pigments; phytogeography; ecology; North America; lichens; Lecanorales; Bacidia; Bacidina; morfologi; taxonomi; kemotaxonomi; Växters fysiologi (inte kärlväxter).}}, language = {{eng}}, publisher = {{Systematic Botany}}, title = {{The corticolous and lignicolous species of Bacidia and Bacidina in North America}}, year = {{1996}}, }