A review of the thuidiaceae (Musci) and a realignment of taxa traditionally accommodated in Thuidium sensu amplo (Thuidium schimp., Thuidiopsis (Broth.) M. Fleisch., and Pelekium mitt.), including Aequatoriella gen, nov. and Indothuidium gen. nov.
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Accession number;01A0706228
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| Title;A review of the thuidiaceae (Musci) and a realignment of taxa traditionally accommodated in Thuidium sensu amplo (Thuidium schimp., Thuidiopsis (Broth.) M. Fleisch., and Pelekium mitt.), including Aequatoriella gen, nov. and Indothuidium gen. nov. |
| Author;
TOUW A
(Univ. Leiden Branch, Leiden, Nld)
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Journal Title;J Hattori Bot Lab
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Journal Code:Y0255A
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ISSN:0073-0912
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VOL.;NO.90;PAGE.167-209(2001)
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| Figure&Table&Reference;TBL.2, REF.103 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Based on multi-character analyses of selected species the Thuidiaceae are redefined, and a realignment is presented of the species previously accommodated in Thuidium s. amplo (Thuidium Schimp. sensu Brotherus 1925, Thuidiopsis (Broth.) M. Fleisch., and Pelekium Mitt.), based on a similar analysis of numerous well-known species and additional information from many remaining ones. The family is characterized by a large combination of character states shared by all genera: regularly pinnate ramification; scattered paraphyllia; mostly cordate or triangular, acute to long-acuminate, plicate stem leaves with recurved margins often bearing paraphylloid appendages below; single, strong, often almost percurrent and almost always distally rough costae bearing paraphylloid or pseudoparaphylloid appendages near insertion; narrow, both mammillose and papillose median leaf cells (mostly ornamented at both leaf faces); weakly differentiated basal and apical leaf cells; undifferentiated or poorly defined alar cell groups consisting of cells shorter than the adjacent leaf cells, if differentiated; leaves of ultimate branches markedly different from stem leaves in bipinnate or tripinnate species; tubular perichaetia with inner leaves ending in a straight, flexuose, or twisted acumen; ovoid to cylindrical, inclined capsules (except in many specialized epiphytes); rarely distinctly collenchymatous exothecial cells; superficial stomata; a hypnoid peristome; and almost always cucullate, naked, smooth calyptrae. Included are Abietinella, Actinothuidium, Boulaya, Bryochenea, Bryonoguchia, Echinophyllum, Haplocladium, Helodium, Hylocomiopsis, Orthothuidium, Pelekium, Rauiella, Thuidiopsis, Thuidium, Aequatoriella gen. nov. (type: Thuidium bifarium Bosch & Sande Lac.), and Indothuidium gen. nov. (type: Thuidium kiasense R.S.Williams). Pelekium sensu Brotherus is judged polyphyletic.... (author abst.) |
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