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-d0_s0" data-properties="tuft depth;turf depth;cushion shape"><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;</span> <span class="statement" id="st-d0_s1" data-properties="whole_organism size;whole_organism density;whole_organism reflectance;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism growth form;lime texture;lime habitat">frequently bleached or whitened and indurated with encrusted lime.</span> <span class="statement" id="st-d0_s2" data-properties="stem size;stem architecture;stem architecture;innovation development"><b>Stems </b>slender, branching irregularly, densely foliate in whorls at successive innovations;</span> <span class="statement" id="st-d0_s3" data-properties="transverse-section shape;hyalodermi shape;hyalodermi size;scleroderm development">transverse-section rounded-pentagonal with an irregularly inflated or enlarged hyalodermis and weakly developed sclerodermis;</span> <span class="statement" id="st-d0_s4" data-properties="">central strand absent;</span> <span class="statement" id="st-d0_s5" data-properties="central strand presence">weakly radiculose, rarely strongly so;</span> <span class="statement" id="st-d0_s6" data-properties="axillary hair coloration;cell quantity">axillary hairs of 5–10 cells, hyaline throughout.</span> <span class="statement" id="st-d0_s7" data-properties="leaf fixation or orientation;leaf arrangement or shape;leaf orientation;leaf shape;base shape;base shape"><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;</span> <span class="statement" id="st-d0_s8" data-properties="margin shape;margin architecture or shape;tooth prominence;tooth architecture or course;tooth architecture;tooth architecture;shoulder position or shape">margins plane, entire except for distinctive irregular hollow teeth on shoulder just distal to the base, not bordered;</span> <span class="statement" id="st-d0_s9" data-properties="apex shape;apex shape">apex broadly to narrowly acute or subulate;</span> <span class="statement" id="st-d0_s10" data-properties="costa fragility;costa architecture;mucro fragility or size;transverse-section arrangement or shape">costa strong, percurrent to shortly excurrent as a stout mucro, in transverse-section elliptic;</span> <span class="statement" id="st-d0_s11" data-properties="surface cell shape;adaxial epidermis presence;band presence;abaxial epidermis presence;hydroid strand presence">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;</span> <span class="statement" id="st-d0_s12" data-properties="basal-cell variability;margin width;margin shape;margin shape;margin coloration;margin architecture or pubescence or relief;margin architecture or arrangement;margin architecture">basal-cells sharply differentiated across to the margin where they become narrower, elongate, bulging-rectangular to rhomboidal, hyaline, smooth, lax and thin-walled;</span> <span class="statement" id="st-d0_s13" data-properties="distal laminal cell shape;wall size or width">distal laminal cells subquadrate, walls sometimes irregularly thickened, papillae low, indistinct, simple or 2-fid, several per cell.</span> <span class="statement" id="st-d0_s14" data-properties="rhizoidal reproduction"><b>Specialized </b>asexual reproduction reportedly by rhizoidal brood bodies.</span> <span class="statement" id="st-d0_s15" data-properties="papilla position;papilla prominence;papilla architecture;papilla shape;papilla quantity;papilla development;papilla reproduction;papilla reproduction"><b>Sexual </b>condition dioicous;</span> <span class="statement" id="st-d0_s16" data-properties="perigonium position or structure subtype">perigonia terminal, interior leaves longlanceolate, similar to those of the stem;</span> <span class="statement" id="st-d0_s17" data-properties="perichaetium position or structure subtype;leaf shape;leaf some measurement;leaf architecture or shape">perichaetia terminal, leaves as in stem-leaves, ovatelanceolate, to 2.5 mm and sheathing.</span> <span class="statement" id="st-d0_s18" data-properties="seta some measurement;seta quantity;seta orientation"><b>Seta </b>to 8 mm, single, erect.</span> <span class="statement" id="st-d0_s19" data-properties="capsule orientation;capsule architecture or shape;capsule coloration;capsule shape"><b>Capsule </b>erect, symmetrical, yellowbrown, ovoid to cylindrical;</span> <span class="statement" id="st-d0_s20" data-properties="annulus development;row quantity;cell architecture or shape">annulus weakly developed, of ca. 2 rows of subvesiculose cells;</span> <span class="statement" id="st-d0_s21" data-properties="operculum shape">operculum obliquely conic-rostrate;</span> <span class="statement" id="st-d0_s22" data-properties="peristome tooth quantity;peristome tooth course;peristome tooth orientation or shape;peristome tooth shape;peristome tooth relief;peristome tooth architecture or shape">peristome teeth 16, straight or slightly oblique, lanceolate, finely papillose, entire to variously cleft.</span> <span class="statement" id="st-d0_s23" data-properties="calyptra shape;calyptra architecture or pubescence or relief"><b>Calyptra </b>cucullate, smooth.</span> <span class="statement" id="st-d0_s24" data-properties=""><b>Spores </b>8–14 µm, spherical, mostly smooth.</span> <span class="statement" id="st-d0_s25" data-properties="spore some measurement;spore shape;spore architecture or pubescence or relief;spore coloration;spore coloration"><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 Eucladium irroratum (Mitten) Jaeger to the genus Tetracoscinodon, rendering Eucladium 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 Trichostomum (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.
}}
}}<!--

--><!--

-->{{#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://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V27/V27_704.xml
|subfamily=Pottiaceae subfam. Trichostomoideae
|genus=Eucladium
|abaxial epidermis presence=absent
|adaxial epidermis presence=absent
|annulus development=developed
|apex shape=subulate;acute
|axillary hair coloration=hyaline
|band presence=absent
|basal-cell variability=differentiated
|base shape=broadened-oblong;undifferentiated
|calyptra architecture or pubescence or relief=smooth
|calyptra shape=cucullate
|capsule architecture or shape=symmetrical
|capsule coloration=yellowbrown
|capsule orientation=erect
|capsule shape=ovoid;cylindrical
|cell architecture or shape=subvesiculose
|cell quantity=5;10
|central strand presence=absent
|costa architecture=percurrent;shortly excurrent
|costa fragility=strong
|cushion shape=swollen
|distal laminal cell shape=subquadrate
|hyalodermi shape=inflated
|hyalodermi size=enlarged
|hydroid strand presence=absent
|innovation development=successive
|leaf architecture or shape=sheathing
|leaf arrangement or shape=incurved-contorted
|leaf fixation or orientation=appressed
|leaf orientation=erect-spreading
|leaf shape=ovatelanceolate;oblong;mostly linear-lanceolate or linear-subulate
|leaf some measurement=0mm;2.5mm
|lime habitat=encrusted
|lime texture=indurate
|margin architecture=thin-walled
|margin architecture or arrangement=lax
|margin architecture or pubescence or relief=smooth
|margin architecture or shape=entire
|margin coloration=hyaline
|margin shape=bulging-rectangular;rhomboidal
|margin width=narrower
|mucro fragility or size=stout
|operculum shape=conic-rostrate
|papilla architecture=simple
|papilla development=specialized
|papilla position=low
|papilla prominence=indistinct
|papilla quantity=several
|papilla reproduction=dioicous;sexual
|papilla shape=2-fid
|perichaetium position or structure subtype=terminal
|perigonium position or structure subtype=terminal
|peristome tooth architecture or shape=entire;variously cleft
|peristome tooth course=straight
|peristome tooth orientation or shape=oblique
|peristome tooth quantity=16
|peristome tooth relief=papillose
|peristome tooth shape=lanceolate
|rhizoidal reproduction=asexual
|row quantity=2
|scleroderm development=developed
|seta orientation=erect
|seta quantity=single
|seta some measurement=0mm;8mm
|shoulder position or shape=distal
|spore architecture or pubescence or relief=smooth
|spore coloration=yellow;laminal
|spore shape=spherical
|spore some measurement=8um;14um
|stem architecture=foliate;branching
|stem size=slender
|surface cell shape=quadrate;elongate
|tooth architecture=not bordered;hollow
|tooth architecture or course=irregular
|tooth prominence=distinctive
|transverse-section arrangement or shape=elliptic
|transverse-section shape=rounded-pentagonal
|tuft depth=deep
|turf depth=deep
|wall size or width=thickened
|whole_organism coloration=whitened;rufous;dark blue-green distally and pale green;yellowish-brown
|whole_organism density=dense
|whole_organism growth form=plant
|whole_organism reflectance=bright
|whole_organism size=small
}}<!--

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