Usnea cornuta

Taxonavigation[edit]

Taxonavigation: Lecanorales
Superregnum: Eukaryota Regnum: Fungi Subregnum: Dikarya Divisio: Ascomycota Subdivisio: Pezizomycotina Classis: Lecanoromycetes Subclassis: Lecanoromycetidae Ordo: Lecanorales

Usnea cornuta Körb., 1859

Usnea dasaea Stirt., 1881 (Source: Index Fungorum)
Usnea subcornuta Stirt., 1881 Source: Index Fungorum)
Usnea constrictula Stirt. (Source: Clerc, 2007)
Usnea inflata (Duby) Motyka (Source: Clerc, 2007)
Usnea intexta Stirt. (Source: Clerc, 2007)
Usnea subhirta (Vain.) Motyka (Source: Clerc, 2007)
Usnea subpectinata Stirt. (Source: Clerc, 2007)
Usnea confusa Asahina, Lich. Jap. 3: 97 (1956) (Source: Australian Checklist)

Koerber, G.W. (1859) Parerga lichenologica. Ergänzungen zu: Systema Lichenum Germaniae, Lief. I-V. Breslau. 1-96 pp. (Mattick Rec.# 23706 - Recent Literature on Lichens) (PDF file)

Brodo, I.M., Sharnoff, S.D. and Sharnoff, S. (2001) Usnea (pp. 709-726) In, Lichens of North America. Yale University Press, New Haven, 795 pages. (Description of U. cornuta: pp. 715-716; distribution map for North America: p. 715; color photo: p. 716, plate 880)

Clerc, P. (1987) On the morphology of soralia in the genus Usnea, pp. 99-102 in Peveling, E. (ed.) Progress and Problems in Lichenology in the Eighties. Bibliotheca Lichenologica 25. (RLL List # 131 / Rec.# 3370 - Recent Literature on Lichens) (PDF file) (Illustration of U. cornuta: plate 1c)

Clerc, P. (1987) Systematics of the Usnea fragilescens aggregate and its distribution in Scandinavia. Nordic Journal of Botany 7: 479–495. (RLL List # 132 / Rec.# 3371 - Recent Literature on Lichens) (PDF file) (Illustrations of U. cornuta: figs. 5, 8, 11, 14b, 20b,c & 24)

Clerc, P. (2007) Usnea (pp. 302-335) In: Nash III, T.H., Gries, C., and Bungartz, F. (eds.), Lichen Flora of the Greater Sonoran Desert Region, Vol. 3. Lichens Unlimited, Arizona State University, Tempe, Arizona, 567 pages. (RLL List # 210 / Rec.# 29910 - Recent Literature on Lichens) (PDF file) (Description of U. cornuta: pp. 313-314)

Clerc, P. and Herrera-Campos, M.A. (1997) Saxicolous species of Usnea subgenus Usnea (Lichenized Ascomycetes) in North America. The Bryologist 100(3): 281–301. (RLL List # 168 / Rec.# 3361 - Recent Literature on Lichens) (PDF file) (JSTOR) (Description of U. cornuta: p. 295)

Dobson, F.S. (2000) (Fourth edition) Usnea (pp. 389-398) In, Lichens: An illustrated guide to the British and Irish species. The Richmond Publishing Co., Ltd., Slough, England, 431 pp. (Description, distribution map, and color photo of U. cornuta: p. 393)

Halonen, P., Clerc, P., Goward, T., Brodo, I.M. and Wulff, K. (1998) Synopsis of the genus Usnea (lichenized Ascomycetes) in British Columbia, Canada. The Bryologist 101(1): 36–60. (RLL List # 170 / Rec.# 7545 - Recent Literature on Lichens) (PDF file) (JSTOR) (Description of U. cornuta: pp. 47-48)

Herrera-Campos, M.A., Nash III, T.H. and Zambrano Garcia, A. (2001) Preliminary study of the Usnea fragilescens aggregate in Mexico. The Bryologist 104(2): 235–259. (RLL List # 184 / Rec.# 22189 - Recent Literature on Lichens) (JSTOR) (Description of U. cornuta: pp. 251-252; black- and white photo of thallus base: p. 237, fig. 1a; black-and-white photos of branch segments: p. 238, fig. 2c-e; black-and-white photos of thallus variation: p. 240, fig. 4a-e; black-and-white photos of soralia and isidia: p. 242, fig. 7a-c; black-and-white photos of variation in soralia: p. 243, fig. 8 a-e; black-and-white photos of longitudinal sections: p. 247; fig. 13a; distribution map for Mexico: p. 250, fig. 15c)

James, P.W., Clerc, P. and Purvis, O.W. (1992) Usnea (pp. 620-629) In: Purvis, O.W., Coppins, B.J., Hawksworth, D.L., James, P.W. and Moore, D.M. (eds.) The Lichen Flora of Great Britain and Ireland. London: Natural History Museum Publication, 710 pp. (Description of U. cornuta: pp. 624-625)

Wirth, V. (1995) Usnea (pp. 940-953 - Teil 2) In, Die Flechten Baden-Württembergs, Teil 1 & 2. Eugen Ulmer GmbH & Co., Stuttgart. 1006 pp.; in German. (Description of U. cornuta: p. 947)