View source for Aongstroemia longipes

{{Treatment/ID
|accepted_name=Aongstroemia longipes
|accepted_authority=(Sommerfelt) Bruch & Schimper
|publications={{Treatment/Publication
|title=Bryol. Europ.
|place=1: 173. 1846,
}}
|basionyms={{Treatment/ID/Basionym
|name=Weissia longipes
|authority=Sommerfelt
|rank=species
|publication_title=Suppl. Fl. Lapp.,
|publication_place=52, plate 1, figs. 1–10. 1826
}}
|synonyms={{Treatment/ID/Synonym
|name=Dicranum julaceum
|authority=Hooker
|rank=species
}}
|hierarchy=Dicranaceae;Aongstroemia;Aongstroemia longipes
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dicranaceae]]</div><div class="higher-taxon"><small>genus</small>[[Aongstroemia]]</div><div class="higher-taxon"><small>species</small>[[Aongstroemia longipes]]</div></div>
|volume=Volume 27
|mention_page=page 362
|treatment_page=page 361
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="stem fragility;stem architecture or shape;stem reproduction;stem life cycle;stem shape;central strand fusion"><b>Stems </b>stiff, slenderly julaceous, sterile and young material filiform, central strand distinct.</span> <span class="statement" id="st-d0_s1" data-properties="leaf size;leaf some measurement;leaf shape;leaf size;leaf shape"><b>Leaves </b>proximally minute, 0.5–1 mm, scalelike, becoming larger and ovatelanceolate distally;</span> <span class="statement" id="st-d0_s2" data-properties="apex shape;apex shape">apex obtuse, subcucullate to acuminate-subulate in distal leaves;</span> <span class="statement" id="st-d0_s3" data-properties="lamina architecture">lamina 1-stratose;</span> <span class="statement" id="st-d0_s4" data-properties="costa fragility;costa character;section hydroid presence">costa strong, less than a quarter of the leaf width, in section hydroids absent;</span> <span class="statement" id="st-d0_s5" data-properties="median laminal cell atypical length;median laminal cell length;median laminal cell width;median laminal cell width;median laminal cell length or size;median laminal cell width;median laminal cell arrangement;border architecture or pubescence or relief;border architecture or relief;border prominence">median laminal cells (25–) 30–60 × 8–15 µm, thinner, longer and narrower at the margin and forming a smooth, non-erose, indistinct border parallel to the margin.</span> <span class="statement" id="st-d0_s6" data-properties="perigonium width;perigonium architecture or shape;perigonium shape;knob coloration;knob width;knob architecture or shape;knob shape;apical rosette coloration;apical rosette width;apical rosette architecture or shape;apical rosette shape;acumination architecture or shape;acumination length or size"><b>Perigonium </b>a dark knob or apical rosette wider than the stem, formed by largest leaves, incurved-tubulose, to twice the length of the cauline leaves, abruptly narrowed into a tubulose acumination that can longer than the leaf body.</span> <span class="statement" id="st-d0_s7" data-properties="apical tuft size;leaf size;leaf some measurement;leaf shape;leaf architecture or shape;leaf shape;leaf shape;base width;base architecture or shape;subulum shape"><b>Perichaetium </b>a large apical tuft, the leaves larger than stem-leaves, to 1.5 mm, long-lanceolate and tubulose, acuminate from a broad, sheathing base, in most distal leaves rapidly or fairly rapidly narrowed into a blunt subula.</span> <span class="statement" id="st-d0_s8" data-properties="seta atypical some measurement;seta some measurement"><b>Seta </b>4–10 (–12) mm.</span> <span class="statement" id="st-d0_s9" data-properties="capsule position;capsule coloration;capsule some measurement"><b>Capsule </b>exserted, brown, 0.6–1 mm, without stomates;</span> <span class="statement" id="st-d0_s10" data-properties="peristome architecture or shape;peristome architecture;peristome shape;peristome quantity;peristome relief;peristome relief;peristome architecture or pubescence or relief;peristome coloration;peristome relief">peristome entire, perforate or divided nearly 1/2 distally, more or less vertically striolate to almost smooth basally, yellow and finely papillose to smooth distally;</span> <span class="statement" id="st-d0_s11" data-properties="operculum some measurement">operculum to 0.4 mm.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature late summer.
|habitat=Moist, exposed, sandy or silty soil of depressions, river and stream banks in montane coniferous forest regions, subalpine regions, mountains, and northern latitudes
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr. (Nfld.);N.W.T.;Yukon;Alaska;Wash.;Arctic;n Europe;n Asia;Atlantic Islands (Iceland)
|discussion=<p>The only species in the genus reported for China, Aongstroemia orientalis Mitten of alpine regions, has been described as having an apex “sharply bent to one side at the tips” (Gao C. et al. 1999). Leaves in American populations of Aongstroemia longipes display this characteristic as well, although less distinctly. E. Nyholm (1986) indicated that A. longipes resembles Pohlia filum (Schimper) Mårtensson of similar habitats in Scandinavia, but that the leaf apex is sharply pointed in P. filum, and obtuse in A. longipes. For discussion of the species’ ecology see L. C. Bliss and J. E. Cantlon (1957). Aongstroemiopsis julacea (Dozy & Molkenboer) M. Fleischer, of Asia, differs in its autoicous sexuality, prominent excurrent costa, and lack of peristome (H. C. Gangulee 1969+, fasc. 2).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Aongstroemia longipes
|authority=(Sommerfelt) Bruch & Schimper
|rank=species
|parent rank=genus
|synonyms=Dicranum julaceum
|basionyms=Weissia longipes
|family=Dicranaceae
|phenology=Capsules mature late summer.
|habitat=Moist, exposed, sandy or silty soil of depressions, river and stream banks in montane coniferous forest regions, subalpine regions, mountains, and northern latitudes
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr. (Nfld.);N.W.T.;Yukon;Alaska;Wash.;Arctic;n Europe;n Asia;Atlantic Islands (Iceland)
|reference=None
|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_504.xml
|genus=Aongstroemia
|species=Aongstroemia longipes
|acumination architecture or shape=tubulose
|acumination length or size=longer
|apex shape=subcucullate;acuminate-subulate
|apical rosette architecture or shape=incurved-tubulose
|apical rosette coloration=dark
|apical rosette shape=narrowed
|apical rosette width=wider
|apical tuft size=large
|base architecture or shape=sheathing
|base width=broad
|border architecture or pubescence or relief=smooth
|border architecture or relief=non-erose
|border prominence=indistinct
|capsule coloration=brown
|capsule position=exserted
|capsule some measurement=0.6mm;1mm
|central strand fusion=distinct
|costa character=width
|costa fragility=strong
|knob architecture or shape=incurved-tubulose
|knob coloration=dark
|knob shape=narrowed
|knob width=wider
|lamina architecture=1-stratose
|leaf architecture or shape=tubulose
|leaf shape=narrowed;acuminate;long-lanceolate;ovatelanceolate;scale-like
|leaf size=larger;larger;minute
|leaf some measurement=0mm;1.5mm
|median laminal cell arrangement=parallel
|median laminal cell atypical length=25um;30um
|median laminal cell length=30um;60um
|median laminal cell length or size=longer
|median laminal cell width=narrower;thinner;8um;15um
|operculum some measurement=0mm;0.4mm
|perigonium architecture or shape=incurved-tubulose
|perigonium shape=narrowed
|perigonium width=wider
|peristome architecture=perforate
|peristome architecture or pubescence or relief=smooth
|peristome architecture or shape=entire
|peristome coloration=yellow
|peristome quantity=1/2
|peristome relief=finely papillose;smooth
|peristome shape=divided
|section hydroid presence=absent
|seta atypical some measurement=10mm;12mm
|seta some measurement=4mm;10mm
|stem architecture or shape=julaceous
|stem fragility=stiff
|stem life cycle=young
|stem reproduction=sterile
|stem shape=filiform
|subulum shape=blunt
}}<!--

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