View source for Eucladium

{{Treatment/ID
|accepted_name=Eucladium
|accepted_authority=Bruch & Schimper
|publications={{Treatment/Publication
|title=Bryol. Europ.
|place=1: 93. 1846 ,
}}
|basionyms=
|synonyms=
|hierarchy=Pottiaceae;Pottiaceae subfam. Trichostomoideae;Eucladium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pottiaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Pottiaceae subfam. Trichostomoideae]]</div><div class="higher-taxon"><small>genus</small>[[Eucladium]]</div></div>
|etymology=Greek eu-, good or well, and klados, branch, alluding to well-developed whorls of stem leaves
|volume=Volume 27
|mention_page=page 478, 487, 488, 578
|treatment_page=page 486
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small, in dense to deep tufts, turfs or swollen cushions, tufa-forming, bright to dark blue-green distally and pale green to yellowish brown proximally or sometimes throughout, rarely rufous; frequently bleached or whitened and indurated with encrusted lime. <b>Stems</b> slender, branching irregularly, densely foliate in whorls at successive innovations; transverse section rounded-pentagonal with an irregularly inflated or enlarged hyalodermis and weakly developed sclerodermis; central strand absent; weakly radiculose, rarely strongly so; axillary hairs of 5–10 cells, hyaline throughout. <b>Leaves</b> appressed and scarcely incurved-contorted when dry, erect-spreading when moist, oblong to mostly linear-lanceolate or linear-subulate, base undifferentiated in shape to occasionally broadened-oblong; margins plane, entire except for distinctive irregular hollow teeth on shoulder just distal to the base, not bordered; apex broadly to narrowly acute or subulate; costa strong, percurrent to shortly excurrent as a stout mucro, in transverse section elliptic; adaxial surface cells quadrate to elongate, adaxial epidermis present, adaxial stereid band, medial guide cells and abaxial stereid band present, abaxial epidermis sometimes absent, hydroid strand absent; basal cells sharply differentiated across to the margin where they become narrower, elongate, bulging-rectangular to rhomboidal, hyaline, smooth, lax and thin-walled; distal laminal cells subquadrate, walls sometimes irregularly thickened, papillae low, indistinct, simple or 2-fid, several per cell. <b>Specialized</b> asexual reproduction reportedly by rhizoidal brood bodies. <b>Sexual</b> condition dioicous; perigonia terminal, interior leaves longlanceolate, similar to those of the stem; perichaetia terminal, leaves as in stem leaves, ovate-lanceolate, to 2.5 mm and sheathing. <b>Seta</b> to 8 mm, single, erect. <b>Capsule</b> erect, symmetrical, yellow-brown, ovoid to cylindrical; annulus weakly developed, of ca. 2 rows of subvesiculose cells; operculum obliquely conic-rostrate; peristome teeth 16, straight or slightly oblique, lanceolate, finely papillose, entire to variously cleft. <b>Calyptra</b> cucullate, smooth. <b>Spores</b> 8–14 µm, spherical, mostly smooth. <b>Laminal</b> KOH color reaction yellow.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;Central America;Europe;Asia;Africa.
|discussion=<p>Species 1.</p><!--
--><p>R. H. Zander (1993) removed <i>Eucladium</i> irroratum (Mitten) Jaeger to the genus Tetracoscinodon, rendering <i>Eucladium</i> monotypic and characterized by absence of stem central strand and sclerodermis, a somewhat enlarged hyalodermis, costa broad in relation to the leaf, plane margins with their peculiar dentition at the leaf shoulder (a condition that may be variable or rarely even absent), and terminal inflorescences. The generic placement is near <i>Trichostomum</i> (Zander). The genus is differentiated from other members of the former tribe Pleuroweisieae by the presence of a peristome, the distinctive serrulations on the proximal leaf margins, and the hyaline, thin-walled and bulging-rectangular differentiated basal cells (Zander 1977).</p>
|tables=
|references={{Treatment/Reference
|id=osada1958a
|text=Osada, T. 1958. On the habitats of Eucladium verticillatum. Misc. Bryol. Lichenol. 15: 3.
}}{{Treatment/Reference
|id=saito1972a
|text=Saito, K. 1972. Gemmae formation on rhizoids of Eucladium verticillatum. Misc. Bryol. Lichenol. 6: 41–42.
}}
}}<!--

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-->{{#Taxon:
name=Eucladium
|author=Patricia M. Eckel
|authority=Bruch & Schimper
|rank=genus
|parent rank=subfamily
|synonyms=
|basionyms=
|family=Pottiaceae
|distribution=North America;Mexico;Central America;Europe;Asia;Africa.
|reference=osada1958a;saito1972a
|publication title=Bryol. Europ.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_704.xml
|subfamily=Pottiaceae subfam. Trichostomoideae
|genus=Eucladium
}}<!--

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