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9 results for “Hypotrachyna”
FIG. 2. — Hypotrachyna corallifera Xin Y.Wang & Li S in Taxonomic study of Hypotrachyna subg. Everniastrum (Hale ex Sipman) Divakar, A.Crespo, Sipman, Elix & Lumbsch (Ascomycota) from China
FIG. 2. — Hypotrachyna corallifera Xin Y.Wang & Li S.Wang, sp. nov.: A, thallus; B, coralloid-branched isidia; C, lobules growing between isidia. Scale bars: A, 1 cm; B, C, 1 mm.
FIG. 3. — Hypotrachyna longicilia Xin Y.Wang & Li S in Taxonomic study of Hypotrachyna subg. Everniastrum (Hale ex Sipman) Divakar, A.Crespo, Sipman, Elix & Lumbsch (Ascomycota) from China
FIG. 3. — Hypotrachyna longicilia Xin Y.Wang & Li S.Wang, sp. nov.: A, thallus; B, long, curved and branched cilia; C, bare lower surface. Scale bars: A, 1 cm; B, 1 mm; C, 2 mm.
FIG. 6. — Hypotrachyna yunnana Xin Y.Wang & Li S in Taxonomic study of Hypotrachyna subg. Everniastrum (Hale ex Sipman) Divakar, A.Crespo, Sipman, Elix & Lumbsch (Ascomycota) from China
FIG. 6. — Hypotrachyna yunnana Xin Y.Wang & Li S.Wang, sp. nov.: A, thallus with wide lobes; B, bundled cilia on the upper surface; C, dense short cilia on the margin of the lower surface. Scale bars: A, 1 cm; B, C, 1 mm.
FIG. 5 in Taxonomic study of Hypotrachyna subg. Everniastrum (Hale ex Sipman) Divakar, A.Crespo, Sipman, Elix & Lumbsch (Ascomycota) from China
FIG. 5. — Type specimens showing special characters: A, Hypotrachyna rhizodendroidea (J.C.Wei & Y.M.Jiang) Divakar, A.Crespo, Sipman, Elix & Lumbsch showing short, thick and irregularly branched cilia (J. C. Wei 762, HMAS); B, H. sinensis (J.B.Chen & J.C.Wei) Divakar, A.Crespo, Sipman, Elix & Lumbsch showing lobules on the upper surface (J. B. Chen 10488, HMAS); C, H. subsorocheila (Y.M.Jiang & J.C.Wei) Divakar, A.Crespo, Sipman, Elix & Lumbsch showing granulose soralia (J. C. Wei 9247, HMAS); D, H. vexans (Zahlbr. ex W.L.Culb. & C.F.Culb.) Divakar, A.Crespo, Sipman, Elix & Lumbsch showing short and granulose isidia on the upper surface (Asahina 79, W). Scale bar: A, B, D, 1 mm; C, 2 mm.
FIG. 4. — Hypotrachyna puerensis Xin Y.Wang & Li S in Taxonomic study of Hypotrachyna subg. Everniastrum (Hale ex Sipman) Divakar, A.Crespo, Sipman, Elix & Lumbsch (Ascomycota) from China
FIG. 4. — Hypotrachyna puerensis Xin Y.Wang & Li S.Wang, sp. nov.: A, thallus without cilia; B, lobes with pointed tips; C, pale yellowish brown, bare lower surface. Scale bars: A, 1 cm; B, C 1 mm.
A revision of Hypotrachyna subgenus Parmelinopsis (Parmeliaceae) in eastern North America
<p>A taxonomic revision of the <i>Hypotrachyna</i> subgenus <i>Parmelinopsis</i> in eastern North America is presented based on molecular phylogenetic analyses of ITS and mtSSU data, extensive field observation and analyses of chemical and morphological data. Each species is described, illustrated with photographs, and the distribution in the region is mapped. An identification key is also presented. Eleven species are recognized: <i>H. afrorevoluta, H. appalachensis, H. britannica, H. cryptochlora, H. horrescens, H. kauffmaniana, H. minarum, H. mcmulliniana, H. revoluta, H. showmanii </i>and<i> H. spumosa</i>. Extensive discussion of prior studies is provided, particularly with respect to the delimitation of <i>H. afrorevoluta</i> and <i>H. revoluta</i>. <i>Hypotrachyna kauffmaniana</i> is described from the central and southern Appalachian Mountains and separated from <i>H. afrorevoluta</i> and <i>H. revoluta</i> by its ascending secondary lobes and pustulose soralia that are primarily confined to the secondary lobes. <i>Hypotrachyna horrescens</i> is shown to correspond to a taxon with narrow lobed, <a>small thall</a>i with ciliate isidia. <i>Hypotrachyna mcmulliniana</i> is described from material collected throughout southeastern North America that is chemically identical to <i>H. horrescens</i> but differs in having <a>larger thalli </a>and sparsely ciliate isidia. <i>Hypotrachyna appalachensis </i>is described to accommodate material previously referred to <i>H. minarum </i>but that differs in the production of 4,5-di-O-methylhiascic acid in high concentrations (vs. absent or present as a trace in <i>H. minarum</i>). <i>Hypotrachyna britannica</i> is reported for the first time from North America.</p>
A revision of Hypotrachyna subgenus Parmelinopsis (Parmeliaceae) in eastern North America
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FIGURE 1. 50 in A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota)
FIGURE 1. 50% majority-rule consensus tree of the molecular phylogenetic relationships in the Hypotrachyna clade, based on 64000 trees from a B/MCMC tree-sampling procedure of a combined dataset of ITS, nu LSU, and mt SSU sequences. Two species of Parmeliopsis used as outgroup. Posterior probabilities ≥ 0.95 are given above the branches, and values below the branches are ML bootstrap values ≥ 70%. Branches that received strong support in any of the two analyses (RaxML and B/MCMC) are in boldface. Asterisk mark shows the type species of the genus Hypotrachyna. Clades numbered indicate phylogenetic clusters explained in the text.
FIG. 1 in Taxonomic study of Hypotrachyna subg. Everniastrum (Hale ex Sipman) Divakar, A.Crespo, Sipman, Elix & Lumbsch (Ascomycota) from China
FIG. 1. — Phylogenetic tree generated from maximum likelihood (ML) analysis based on ITS sequence data. ML bootstrap support values greater than 70% and Bayesian posterior probabilities (PPs) greater than 0.95 are given above the nodes. New species are indicated in bold. "TYPE" refers to the sequences of types, "TOPO" for specimens that come from the type locality. Scale bar: 0.02 substitutions.
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