Fig. 7 in The genus Scouleria (Bryophyta) in Russia revisited
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| author | Ignatova, Elena A. Kurbatova, Lyubov E. Kuznetsova, Oxana I. Ivanov, Oleg V. Shevock, James R. Carter, Benjamin Ignatov, Michael S. |
| author_facet | Ignatova, Elena A. Kurbatova, Lyubov E. Kuznetsova, Oxana I. Ivanov, Oleg V. Shevock, James R. Carter, Benjamin Ignatov, Michael S. |
| contents | Fig. 7. Peristome of Scouleria rschewinii (a-d, f-h – from Vitim River, 10.VII.1984, Bardunov, MHA; e – from Ust-Belaya, 19.VIII.1980, Afonina, LE): a, c – operculum from inside with outline of peristome, as seen in fluorescent microscope, with berberin staining; b, g, h – taken from the same operculum as a and c in transmitted light: note that peristomial material in very transparent and almost unseen, with only partial secondary deposition of thick brownish material. After capsule opening, most of peristome material remains attached to the operculum, and teeth are usually seen only by their bases (d, e and compare with Fig. 6e); f: longitudinal section showing operculum (O), peristome (P) and columella (C); this peristome is also shown in a-c, g, h. Fig. 6 (opposite page). Peristome and columella in Scouleria pulcherrima (a-b, f, h-k – from Chukotka, 13.VIII.1979, Afonina, Bryophyta Rossica exsiccata 186, LE; g – from Tungir River, 2000, Golyakov, LE) and S. rschewinii (c-d – from Vitim River, 10.VII.1984, Bardunov, MHA; e – from Irkutsk Province, 18.VII.1984, Bardunov, LE). Note that columella has a widening in the former species with a cavity above it (likely due to tissue resorption in proximity of peristome teeth) and adjoining to operculum by narrow band of largecelled tissue. At the same time, poor peristome teeth development in S. rschewinii (c-d, and cf. Fig. 7f) results in no such cavity and widening of columella, which adjoins to operculum by much wider zone. Teeth are irregular in shape (b, g-k), but are well developed. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_20299361 |
| institution | Zenodo |
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| publishDate | 2015 |
| publisher | Zenodo |
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| spellingShingle | Fig. 7 in The genus Scouleria (Bryophyta) in Russia revisited Ignatova, Elena A. Kurbatova, Lyubov E. Kuznetsova, Oxana I. Ivanov, Oleg V. Shevock, James R. Carter, Benjamin Ignatov, Michael S. Biodiversity Taxonomy Fig. 7. Peristome of Scouleria rschewinii (a-d, f-h – from Vitim River, 10.VII.1984, Bardunov, MHA; e – from Ust-Belaya, 19.VIII.1980, Afonina, LE): a, c – operculum from inside with outline of peristome, as seen in fluorescent microscope, with berberin staining; b, g, h – taken from the same operculum as a and c in transmitted light: note that peristomial material in very transparent and almost unseen, with only partial secondary deposition of thick brownish material. After capsule opening, most of peristome material remains attached to the operculum, and teeth are usually seen only by their bases (d, e and compare with Fig. 6e); f: longitudinal section showing operculum (O), peristome (P) and columella (C); this peristome is also shown in a-c, g, h. Fig. 6 (opposite page). Peristome and columella in Scouleria pulcherrima (a-b, f, h-k – from Chukotka, 13.VIII.1979, Afonina, Bryophyta Rossica exsiccata 186, LE; g – from Tungir River, 2000, Golyakov, LE) and S. rschewinii (c-d – from Vitim River, 10.VII.1984, Bardunov, MHA; e – from Irkutsk Province, 18.VII.1984, Bardunov, LE). Note that columella has a widening in the former species with a cavity above it (likely due to tissue resorption in proximity of peristome teeth) and adjoining to operculum by narrow band of largecelled tissue. At the same time, poor peristome teeth development in S. rschewinii (c-d, and cf. Fig. 7f) results in no such cavity and widening of columella, which adjoins to operculum by much wider zone. Teeth are irregular in shape (b, g-k), but are well developed. |
| title | Fig. 7 in The genus Scouleria (Bryophyta) in Russia revisited |
| topic | Biodiversity Taxonomy |
| url | https://doi.org/10.5281/zenodo.20299361 |