2010
DOI: 10.1111/j.1756-1051.2010.00806.x
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A new hybrid horsetail Equisetum×lofotense (E. arvense×E. sylvaticum, Equisetaceae) from Norway

Abstract: On the Island of Austvågøya (Lofoten, Norway), a new hybrid horsetail (E. arvense×E. sylvaticum) was found, which is described as E.×lofotense. Its macro‐ and micro‐morphological characters are discussed and compared with the similar hybrid E.×mildeanum (E. pratense×E. sylvaticum) with which it shares the E. sylvaticum parentage. The hybrid nature is verified by its completely aborted spores, and the micro‐morphology of the stem ridges and stomata, illustrated by SEM images, confirm the proposed origin. An ove… Show more

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Cited by 6 publications
(8 citation statements)
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“…As we present here, this is rendered difficult to assess by the high degree of macroand micromorphological variability in hybrids within subgenus Hippochaete. Furthermore, Hauke's statement is not supported by micromorphological studies in subgenus Equisetum (Lubienski, 2010;Lubienski and Dö rken, 2013). These studies have shown strong discrepancy between macromorphological and micromorphological characters in some hybrid taxa.…”
Section: Equisetummentioning
confidence: 88%
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“…As we present here, this is rendered difficult to assess by the high degree of macroand micromorphological variability in hybrids within subgenus Hippochaete. Furthermore, Hauke's statement is not supported by micromorphological studies in subgenus Equisetum (Lubienski, 2010;Lubienski and Dö rken, 2013). These studies have shown strong discrepancy between macromorphological and micromorphological characters in some hybrid taxa.…”
Section: Equisetummentioning
confidence: 88%
“…The genus is commonly divided into two subgenera, Equisetum and Hippochaete, which distinctly differ on the sporophytic as well as on the gametophytic level, so that two separate horsetail genera could be raised (Milde, 1865b). Hybridization is a common phenomenon within (but never between) both subgenera of the Equisetaceae; 19 diploid hybrids have been described and published up to the present (see synopsis in Lubienski, 2010;plus Page and Gureyeva, 2009). In subgenus Hippochaete evolutionary processes seem to be more complex than previously presumed, which is attested by three triploid hybrids, one of which incorporates three different genomes, detected in central Europe in the last decade (Bennert et al, 2005;Lubienski and Bennert, 2006;Lubienski et al, 2010).…”
mentioning
confidence: 95%
“…У видов подрода Equisetum стебли ветвистые, иногда до 2-3 порядка, на зиму отми-рающие, для видов подрода Hippochaete харак-терны зимующие стебли, без веточек, с одиноч-ными или немногочисленными ветвями. Хвощи имеют очень своеобразное строение устьичного аппарата: он состоит из двух пар клеток, распо-ложенных друг над другом -две побочные клет-ки устьиц располагаются сверху и прикрывают две замыкающие клетки (Page, 1972;Filin, 1978;Lubienski, 2010). C. N. Page (1972) и другие ис-следователи (Kaufman et al, 1973) отмечали раз-личия в расположении устьиц относительно по-верхности: находящиеся на одном уровне или выступающие у видов подрода Equisetum и по-груженные у видов подрода Hippochaete.…”
Section: Introductionunclassified
“…Рядом работ (Page, 1972(Page, , 1974Lubienski, 2010;Feoktistov, Gureyeva, 2016) показано, что особенности скульптуры эпидермальной поверх-ности междоузлий хвощей подрода Equisetum, выявляемые с помощью сканирующей электрон-ной микроскопии (СЭМ), могут использоваться как важные признаки в систематике хвощей для идентификации видов и гибридов и в филогене-тике для установления родственных отношений.…”
Section: Introductionunclassified
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