View source for Ditrichum gracile

{{Treatment/ID
|accepted_name=Ditrichum gracile
|accepted_authority=(Mitten) Kuntze
|publications={{Treatment/Publication
|title=Revis. Gen. Pl.
|place=2: 835. 1891,
}}
|basionyms={{Treatment/ID/Basionym
|name=Leptotrichum gracile
|authority=Mitten
|publication_title=Hooker’s J. Bot. Kew Gard. Misc.
|publication_place=3: 353. 1851
}}
|synonyms={{Treatment/ID/Synonym
|name=Leptotrichum crispatissimum
|authority=Müller Hal.
}} {{Treatment/ID/Synonym
|name=Ditrichum crispatissimum
|authority=(Müller Hal.) Paris
}} {{Treatment/ID/Synonym
|name=Ditrichum giganteum
|authority=R. S. Williams
}}
|hierarchy=Ditrichaceae;Ditrichum;Ditrichum gracile
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ditrichaceae]]</div><div class="higher-taxon"><small>genus</small>[[Ditrichum]]</div><div class="higher-taxon"><small>species</small>[[Ditrichum gracile]]</div></div>
|volume=Volume 27
|mention_page=page 450
|treatment_page=page 453
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>in tufts, yellowish brown to dark green, often shiny. <b>Stems</b> very variable in length, to 7 cm or more, simple or with relatively few branches; loosely compacted and then sparsely tomentose, or closely compact and rather densely tomentose. <b>Leaves</b> often ± falcate, slightly or not flexuose, subula of leaves often spirally twisted together, 4–7 mm, tapering ± gradually from an elongate ovate sheathing base to a long subula, lamina 1-stratose proximally, often 2-stratose distally in the subula; margins spinulose-denticulate in distal part of the subula or sometimes ± entire, often 2-stratose distally; costa occupying 1/4–1/3 width of leaf base, weakly abaxially convex, with poorly developed stereid bands abaxially and adaxially; cells of the subula and distal part of leaf base short, isodiametric to rhomboid to short rectangular, those of the leaf base becoming elongate, rectangular, with ± nodulose longitudinal walls, particularly near the costa, cells of the basal margins narrower. <b>Specialized</b> asexual reproduction unknown. <b>Sexual</b> condition dioicous; sporophytes rare; male plants slightly smaller than rarer female plants. <b>Seta</b> dark reddish brown, to 2.5 cm, ± flexuose. <b>Capsule</b> erect and symmetric to slightly inclined, dark brown, ± cylindric, 1.5–2 mm; operculum high-conic to conic-rostrate, to about 1 mm; peristome teeth about 400 µm, pale, 2-fid, divided to near base, densely papillose, fragile. <b>Spores</b> 12–15 µm, finely papillose.</span><!--

-->{{Treatment/Body
|phenology=Capsules rarely produced, mature summer (Jul).
|habitat=Soil, rocks
|elevation=moderate to high elevations (to 4000 m)
|distribution=Greenland;B.C.;Nfld. and Labr.;N.W.T.;Nunavut;Ont.;Que.;Alaska;Colo.;Minn.;Mont.;Wyo.;Mexico;Central America (Guatemala;El Salvador);South America (Colombia);Europe;Asia (Japan;Taiwan);Pacific Islands (New Guinea;New Zealand).
|discussion=<p>B. H. Allen (1994) included <i>Ditrichum</i> crispatissimum and D. giganteum as synonyms of <i>D. gracile</i>, an interpretation we have followed here. As with <i>D. flexicaule</i>, a detailed molecular analysis of this and related taxa may help considerably in ascertaining taxonomic affinities.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ditrichum gracile
|author=
|authority=(Mitten) Kuntze
|rank=species
|parent rank=genus
|synonyms=Leptotrichum crispatissimum;Ditrichum crispatissimum;Ditrichum giganteum
|basionyms=Leptotrichum gracile
|family=Ditrichaceae
|phenology=Capsules rarely produced, mature summer (Jul).
|habitat=Soil, rocks
|elevation=moderate to high elevations (to 4000 m)
|distribution=Greenland;B.C.;Nfld. and Labr.;N.W.T.;Nunavut;Ont.;Que.;Alaska;Colo.;Minn.;Mont.;Wyo.;Mexico;Central America (Guatemala;El Salvador);South America (Colombia);Europe;Asia (Japan;Taiwan);Pacific Islands (New Guinea;New Zealand).
|reference=None
|publication title=Revis. Gen. Pl.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_653.xml
|genus=Ditrichum
|species=Ditrichum gracile
}}<!--

-->[[Category:Treatment]][[Category:Ditrichum]]