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7 results for “Tortella”
FIG. 5 in Novelties on Tortella (Pottiaceae, Bryophyta) from South America
FIG. 5.— Tortella lilliputana (Müll. Hal. ex G. Roth) R. H. Zander sporophyte and spores micrographs: A, Sporophyte showing complete capsule; B, Deoperculate capsule; C, D, Spores in distal view; E, Spore in optical view; F, Spore in proximal view (A, B, D, G made with SEM and C, E with LM). Scale bars: A, B, 0.5 mm; C-F, 10 µm (all from Suárez 1488, CTES).
FIG. 3 in Novelties on Tortella (Pottiaceae, Bryophyta) from South America
FIG. 3.— Distribution map of Tortella fruchartii (Müll. Hal.) R. H. Zander and T. lilliputana (Müll. Hal. ex G. Roth) R. H. Zander. Black circles, previously known records of T. fruchartii in Brazil, Mexico, Paraguay and Uruguay; empty circle, rediscovery of T. fruchartii in Uruguay; black squares, previously known records of T. lilliputana in Brazil and Panama; empty square, new record of T. lilliputana in Paraguay.
FIG. 2 in Novelties on Tortella (Pottiaceae, Bryophyta) from South America
FIG. 2.— Tortella fruchartii (Müll. Hal.) R. H. Zander sporophyte and spores micrographs: A, Capsule showing apicule covered by the calyptra; B, Capsule irregularly ruptured; C, Spores; D, Spore detail in distal view; E, Spore detail in proximal view (A, D, E made with SEM and B, C with LM). Scale bars: A, B, 0.5 mm; C, 10 µm; D, E, 5 µm (all from Suárez 1047, CTES).
FIG. 4 in Novelties on Tortella (Pottiaceae, Bryophyta) from South America
FIG. 4.— Tortella lilliputana (Müll. Hal. ex G. Roth) R. H. Zander gametophyte micrographs: A, Vegetative leaf; B, C, Laminal cells at the middle of the leaf; D, Stem cross section; E, Leaf cross section at the middle part (A, B, D, E made with LM and C with SEM). Scale bars: A, 0.5 mm; B-E, 50 µm (all from Suárez 1488, CTES).
Data from: The supposedly well-known carbonate indicator Tortella tortuosa (Pottiaceae, Bryophyta) split into eight species in Europe
<p><span>We present a first treatment of the <em>Tortella tortuosa</em> complex for Europe</span><span>. We analysed molecular relationships based on the nuclear ITS and the plastid <em>atp</em>B-<em>rbc</em>L and <em>rps</em>4 in a network context and thereafter characterized the identified entities by their morphology. We found eight morphologically and molecularly distinct entities at the species level, which are also supported in ASAP analyses of the molecular data; one species includes two varieties. In some cases, nuclear and plastid data suggest different relationships and we found a few likely recent hybrid collections. To the main characters of taxonomic importance belong stem anatomy, leaf shape and papillosity. We describe three species as new: <em>T. commutata</em> (a widespread plant; including the new var. valida), <em>T. dolomitica</em> (known only from the Alps) and <em>T. splendida</em> (an Arctic-alpine element), replacing <em>T. arctica</em> auct. For <em>T. angustifolia</em> and <em>T. robusta</em> (both montane) new combinations at the species level are provided. Tortella bambergeri (a submediterranean element), <em>T. fleischeri</em> (an Alpine element, recurring in Scotland) and <em>T. tortuosa</em> s. str. (widespread) complete this informal group of morphologically similar and partly related species. The species differ in ecological requirements and distribution areas, although mixed stands of two or three species are frequent. The area richest in species in Europe is the Alps with all eight species, whereas we found only four from Scandinavia.</span></p>
Data from: The supposedly well-known carbonate indicator Tortella tortuosa (Pottiaceae, Bryophyta) split into eight species in Europe
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Data from: Another Fennoscandian Tortella species with fragile leaves, Tortella fragmenta (Pottiaceae, Bryophyta)
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