Dissertations and Theses @ UNI
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Open Access Thesis
Keywords
Lichens;
Abstract
During the summer of 1969 a total of eighty-four species of lichens belonging to four subgenera were collected in Colombia, Costa Rica, and Guatemala. Twelve of these are described as new. The subgenus Amphigymnia is represented by thirty-six species, three of which are described as new. The subgenus Parmelia is represented by forty-one species, eight of which are described as new. The subgenera Everniiformes and Xanthoparmelia are represented by two and five species, respectively, with no new taxa recognized. The lichen product strepsiline, previously known only in the lichen Cladonia strepsilis (Ach.) Vain., was found by microchemical tests in Parmelia heterodoxa sp. nov. New distributional records, not previously reported in the literature and excluding the new species herein described, includes two species, Parmelia cumberlandia and P. margaritata, new to tropical America; thirteen new to Central America (P. crozalsiana, P. cryptochlorophaea, P. flaventior, P. haitiensis, P. horrescens, P. laevigatula, P. margaritata, P. scortella, P. spumosa, P. subrudecta, P. tabacina, P. tinctina, and P. ventricosa); eleven new to South America (P. cumberlandia, P. digitata, P. dissecta, P. eborina, P. hababiana KC-, P. internexa, P. laevigata, P. scortella, P. stuppea, P. subramigera, and P. viridiflava); sixteen new to Costa Rica (P. conformata, P. crozalsiana, P. cryptochlorophaea, P. dissecta, P. flaventior, P. horrescens, P. laevigatula, P. margaritata, P. prolongata, P. scortella, P. spumosa, P. subrudecta, P. sulphurata, P. tabacina, P. tinctina, and - P. _____ ventricosa)r , fourteen new to Guatemala (P, - crozalsiana, - P, dissecta, P. endosulphurea, P. erasmia, P. flaventior, P. haitiensis, P. horrescens, P. laevigatula, P. reticulata, P. scortella, P. subcrinita, P. subisidiosa, P. subrudecta, and P, texana); and twenty-nine new to Colombia (P. aberrans, P. arnoldii, P. borreri, P. caroliniana, P. conformata, P. crozalsiana, P. cumberlandia, P. digitata, P. dissecta, P. eborina, P. endochlora, P. hababiana KC+, P. hababiana KC-, P. homotoma, P. internexa, P. isidiocera, P. laevigata, P. perlata, P. plittii, P. praesorediosa, P. revoluta, P. scortella, P. sinuosa, P. spumosa, P. stuppea, P. subramigera, P. subrudecta, P. texana, and P. viridiflava), It was found that the numbers of Parmelia species increase with elevation up to about 5500 feet. Data from specimens in the herbarium at the National Museum of Natural History, literature, or observations in this research, indicate that few species are found above 10,000 feet. New distributional extensions by altitude were noted as follows, increases of 1000 feet or more are reported for eleven species (P. aberrans, P. eborina, P. endosulphurea, P. mesotropa, P. peralbida, P. praesorediosa, P. revoluta, P. scortella, P. spumosa, P. subramigera, and P. viridiflava), and decreases of 1000 feet or more are reported for six species P. crinita, P. erasmia, P. meveri, P. subisidiosa, P. subrudecta, and P. ventricosa). Wood substrates were favored by the greatest numbers of both species and specimens of the genus Parmelia. A total of 266 specimens, representing sixty species, were found on wood, Twelve species were found on substrates other than wood, particularly rock or soil or both. A remaining twenty-four specimens bear no substrate data on the labels. Specimens were collected from five life zones, following the world life zone classification of Holdridge (1967). Species of Parmelia do not follow life zone patterns.
Year of Submission
1971
Degree Name
Master of Arts
Department
Department of Biology
First Advisor
John C. Downey
Second Advisor
John Kirby
Third Advisor
Robert C. Goss
Date Original
1971
Object Description
1 PDF file (115 leaves)
Copyright
©1971 Donald G. Flenniken
Language
en
File Format
application/pdf
Recommended Citation
Flenniken, Donald G., "Lichens of the Genus Parmelia From Columbia, Costa Rica, and Guatemala" (1971). Dissertations and Theses @ UNI. 2644.
https://scholarworks.uni.edu/etd/2644
Comments
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