View source for Plaubelia

{{Treatment/ID
|accepted_name=Plaubelia
|accepted_authority=Bridel
|publications={{Treatment/Publication
|title=Bryol. Univ.
|place=1: 522. 1826,
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Hyophilopsis
|authority=H. A. Crum
|rank=genus
}} {{Treatment/ID/Synonym
|name=Neohyophila
|authority=H. A. Crum
|rank=genus
}} {{Treatment/ID/Synonym
|name=Tortula sect. Plaubelia
|authority=(Bridel) Mitten
|rank=section
}}
|hierarchy=Pottiaceae;Pottiaceae subfam. Barbuloideae;Plaubelia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pottiaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Pottiaceae subfam. Barbuloideae]]</div><div class="higher-taxon"><small>genus</small>[[Plaubelia]]</div></div>
|etymology=Probably for Julius August Plaubel, fl. 1828–1834, mycologist and homeopathist of Gotha, Thuringia
|volume=Volume 27
|mention_page=page 478, 582, 583, 585, 642
|treatment_page=page 581
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small, turf-forming or loosely cespitose, green distally, sometimes brown proximally. <b>Stems</b> often branching, to 4 mm, hyalodermis absent, sclerodermis weak, central strand strong; rhizoids sparse; axillary hairs of up to 5 cells, the basal 1–2 yellow. <b>Cauline</b> leaves smaller proximally, distally much larger, rosulate, crowded, incurved to spreading, often tubulose and incurved-contorted when dry, widespreading when moist, spathulate to oblong-ligulate; base little different in shape; margins incurved, involute or sometimes plane, entire or distantly denticulate above; apex rounded-acute to broadly rounded-obtuse, usually apiculate; costa short-excurrent, percurrent or ending up to 4 cells before the apex, adaxial surface of bulging cells, adaxial epidermis of bulging or mammillose cells, abaxial epidermis weakly differentiated, 1–2 stereid bands, guide cells 2–4 in 1 layer, hydroid strand often present; basal cells not differentiated or distinct in a small medial group or across the base, quadrate to short-rectangular, hyaline to yellowish; distal laminal cells rounded-hexagonal, walls evenly thickened, adaxially bulging-mammillose, abaxially nearly plane; distal laminal papillae often absent, or solid, small, simple, 1–2 per lumen abaxially or occasionally on both sides. <b>Specialized</b> asexual reproduction absent [gemmae present in leaf axils]. <b>Sexual</b> condition dioicous. <b>Perichaetia</b> terminal, leaves ovate-lanceolate to ligulate, shorter than stem leaves. <b>Seta</b> 1–8 mm. <b>Capsule</b> red to yellow-brown, ellipsoidal, operculum rostrate, peristome of 16 red, spiculose, long-linear teeth, not twisted, basal membrane absent. <b>Calyptra</b> cucullate. <b>Spores</b> lightly papillose, 8–10 µm. <b>Laminal</b> KOH color reaction in proximal leaves often orange-brown, in distal leaves yellow.</span><!--

-->{{Treatment/Body
|distribution=sw;se United States;Mexico;West Indies;Central America;South America (Brazil;Venezuela);Asia (Burma);s Africa.
|discussion=<p>Species 3 (1 in the flora).</p><!--
--><p>As discussed by R. H. Zander (1993), the circumscription of the genus <i>Hyophila</i> is unsatisfactory, being both artificial (e.g., absence of peristome) and polyphyletic. The genus <i>Plaubelia</i> is separated from <i>Hyophila</i> mainly by the presence of a peristome. The two genera are related by the adaxially bulging, abaxially flat laminal cells, spathulate-oblong leaves, poorly differentiated basal cells, similar clavate gemmae (in exotic species) and other characters. The single abaxial stereid band of <i>Plaubelia sprengelii</i> was once an important basis for the genus, but with the inclusion of <i></i>var.<i> stomatodonta</i> with its second stereid band into the variation of the species (Zander 1983), the generic distinction becomes more problematic.</p>
|tables=
|references={{Treatment/Reference
|id=crum1965a
|text=Crum, H. A. 1965. Hyophilopsis, a new genus of Pottiaceae. Bryologist 68: 68–71.
}}{{Treatment/Reference
|id=crum1965b
|text=Crum, H. A. 1965. Hyophilopsis—a nomenclatural correction. Bryologist 68: 470.
}}{{Treatment/Reference
|id=m1984a
|text=Delgadillo M., C. and R. H. Zander. 1984. The mosses of the Tehuacán Valley, Mexico, and notes on their distribution. Bryologist 87: 319–322.
}}{{Treatment/Reference
|id=saito1973a
|text=Saito, K. 1973. Taxonomic position of the genus Neohyophila Crum. Misc. Bryol. Lichenol. 6: 80–81.
}}{{Treatment/Reference
|id=zander1983a
|text=Zander, R. H. 1983. A reevaluation of Neohyophila Crum (Pottiaceae). Bryologist 86: 134–139.
}}
}}<!--

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-->{{#Taxon:
name=Plaubelia
|author=Patricia M. Eckel
|authority=Bridel
|rank=genus
|parent rank=subfamily
|synonyms=Hyophilopsis;Neohyophila;Tortula sect. Plaubelia
|basionyms=
|family=Pottiaceae
|distribution=sw;se United States;Mexico;West Indies;Central America;South America (Brazil;Venezuela);Asia (Burma);s Africa.
|reference=crum1965a;crum1965b;m1984a;saito1973a;zander1983a
|publication title=Bryol. Univ.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V27/V27_834.xml
|subfamily=Pottiaceae subfam. Barbuloideae
|genus=Plaubelia
}}<!--

-->[[Category:Treatment]][[Category:Pottiaceae subfam. Barbuloideae]]