Difference between revisions of "Bestia"
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 226[I,3]: 858, fig. 631. 1906.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 26: | Line 26: | ||
|distribution=Calif. | |distribution=Calif. | ||
|discussion=<p>Species 1.</p><!-- | |discussion=<p>Species 1.</p><!-- | ||
| − | --><p>Bestia has a confusing taxonomic history, which causes difficulty in determining its family placement depending on which species of Bestia was examined and what combination of morphological characters was considered most important for inferring relationships (J. R. Shevock et al. 2008). H. A. Crum (1987) placed Bestia in close relationship to Isothecium, in Brachytheciaceae. Bestia vancouveriensis was transferred to Thamnobryaceae as Porotrichum vancouveriense and subsequently elevated to generic rank as Bryolawtonia vancouveriensis.</p><!-- | + | --><p><i>Bestia</i> has a confusing taxonomic history, which causes difficulty in determining its family placement depending on which species of <i>Bestia</i> was examined and what combination of morphological characters was considered most important for inferring relationships (J. R. Shevock et al. 2008). H. A. Crum (1987) placed <i>Bestia</i> in close relationship to <i>Isothecium</i>, in Brachytheciaceae. <i>Bestia</i> vancouveriensis was transferred to Thamnobryaceae as <i>Porotrichum</i> vancouveriense and subsequently elevated to generic rank as <i>Bryolawtonia vancouveriensis</i>.</p><!-- |
| − | --><p>Although Bestia has been attributed to several families, recent DNA studies suggest that Bestia and Isothecium are closely related and belong to Lembophyllaceae. Bestia is morphologically similar to some species of Isothecium (especially I. myosuroides), but it has several distinguishing gametophytic features, primarily medial laminal cells uniformly short (less than 4:1) whereas the juxtacostal cells in Isothecium are elongate to 8:1. The long, straight, cylindric capsules with smaller peristome teeth differ markedly from the rather hypnaceous curved capsules in Isothecium.</p> | + | --><p>Although <i>Bestia</i> has been attributed to several families, recent DNA studies suggest that <i>Bestia</i> and <i>Isothecium</i> are closely related and belong to Lembophyllaceae. <i>Bestia</i> is morphologically similar to some species of <i>Isothecium</i> (especially <i>I. myosuroides</i>), but it has several distinguishing gametophytic features, primarily medial laminal cells uniformly short (less than 4:1) whereas the juxtacostal cells in <i>Isothecium</i> are elongate to 8:1. The long, straight, cylindric capsules with smaller peristome teeth differ markedly from the rather hypnaceous curved capsules in <i>Isothecium</i>.</p> |
|tables= | |tables= | ||
|references={{Treatment/Reference | |references={{Treatment/Reference | ||
| Line 51: | Line 51: | ||
|publication year=1906 | |publication year=1906 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V28/V28_969.xml |
|genus=Bestia | |genus=Bestia | ||
}}<!-- | }}<!-- | ||
-->[[Category:Treatment]][[Category:Lembophyllaceae]] | -->[[Category:Treatment]][[Category:Lembophyllaceae]] | ||
Revision as of 17:09, 18 September 2019
Plants large. Stems pinnate or irregularly 2-pinnate. Stem and branch leaves similar, ovate; margins serrulate in distal 1/5; costa single; medial laminal cells less than 4:1. Seta stramineous, rarely reddish tinged, to 1.5 cm. Capsule erect, symmetric; operculum inclined-rostrate; peristome somewhat reduced.
Discussion
Species 1.
Bestia has a confusing taxonomic history, which causes difficulty in determining its family placement depending on which species of Bestia was examined and what combination of morphological characters was considered most important for inferring relationships (J. R. Shevock et al. 2008). H. A. Crum (1987) placed Bestia in close relationship to Isothecium, in Brachytheciaceae. Bestia vancouveriensis was transferred to Thamnobryaceae as Porotrichum vancouveriense and subsequently elevated to generic rank as Bryolawtonia vancouveriensis.
Although Bestia has been attributed to several families, recent DNA studies suggest that Bestia and Isothecium are closely related and belong to Lembophyllaceae. Bestia is morphologically similar to some species of Isothecium (especially I. myosuroides), but it has several distinguishing gametophytic features, primarily medial laminal cells uniformly short (less than 4:1) whereas the juxtacostal cells in Isothecium are elongate to 8:1. The long, straight, cylindric capsules with smaller peristome teeth differ markedly from the rather hypnaceous curved capsules in Isothecium.