treatments-xml/data/60/00/87/60008781FFB2AA23E7C631EBFBE2F861.xml

<document id="F24AD388A6ABD6512B0F581D11EB8FE8" ID-DOI="10.11646/phytotaxa.372.1.8" ID-ISSN="1179-3163" ID-Zenodo-Dep="13728630" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1725681898256" checkinUser="felipe" docAuthor="Kou, Jin, Feng, Chao &amp; Shao, Xiao-Ming" docDate="2018" docId="60008781FFB2AA23E7C631EBFBE2F861" docLanguage="en" docName="phytotaxa.372.1.8.pdf" docOrigin="Phytotaxa 372 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.372.1.8" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.13:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="13" docTitle="Didymodon obtusus J. Kou, X., sp. nov." docType="treatment" docVersion="2" lastPageNumber="98" masterDocId="9C39FFF9FFB3AA22E74E3350FFF3FFFE" masterDocTitle="Didymodon obtusus (Bryophyta, Pottiaceae), a new species from Tibet, China" masterLastPageNumber="103" masterPageNumber="97" pageNumber="98" updateTime="1725693215511" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="214392BD13954B4B5791CDADB1527C0C">Didymodon obtusus (Bryophyta, Pottiaceae), a new species from Tibet, China</mods:title>
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<mods:namePart id="8219C65E925A6762C854507313BB2D62">Kou, Jin</mods:namePart>
<mods:affiliation id="14FFA55537314135A2316FC19F6BA8E6">School of life sciences, Northeast Normal University, Changchun 130024, China</mods:affiliation>
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<mods:namePart id="31816300DC0C92DEC076993A6582F6AB">Feng, Chao</mods:namePart>
<mods:affiliation id="52991BFBFC9B7415928008807DEDDB70">College of Grassland, Resources and Environment, Key Laboratory of Grassland Resources, Ministry of Education P. R. of China, Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization of Ministry of Agriculture, Inner Mongolia Agricultural University, Hohhot 010011, China</mods:affiliation>
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<mods:namePart id="18CF51851080DC4C668217CFFE7F0282">Shao, Xiao-Ming</mods:namePart>
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<treatment id="60008781FFB2AA23E7C631EBFBE2F861" LSID="urn:lsid:plazi:treatment:60008781FFB2AA23E7C631EBFBE2F861" httpUri="http://treatment.plazi.org/id/60008781FFB2AA23E7C631EBFBE2F861" lastPageNumber="98" pageId="1" pageNumber="98">
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<paragraph id="E8163697FFB2AA23E7C631EBFC32FD29" blockId="1.[136,961,699,727]" box="[136,961,699,727]" pageId="1" pageNumber="98">
<heading id="B35E81FBFFB2AA23E7C631EBFC32FD29" box="[136,961,699,727]" fontSize="11" level="2" pageId="1" pageNumber="98" reason="3">
<taxonomicName id="2FA94D14FFB2AA23E7C631EBFE14FD29" ID-CoL="9LB2J" authority="J. Kou, X." authorityName="J. Kou, X." box="[136,487,699,727]" class="Bryopsida" family="Pottiaceae" genus="Didymodon" kingdom="Plantae" order="Pottiales" pageId="1" pageNumber="98" phylum="Bryophyta" rank="species" species="obtusus">
<emphasis id="DADDEA85FFB2AA23E7C631EBFE9DFD28" bold="true" box="[136,366,699,726]" italics="true" pageId="1" pageNumber="98">Didymodon obtusus</emphasis>
J. Kou, X.
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-M. Shao &amp; C. Feng, 
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<taxonomicNameLabel id="C1EE57FEFFB2AA23E59431EEFCDCFD29" box="[730,815,702,727]" pageId="1" pageNumber="98" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, 
<figureCitation id="70922A12FFB2AA23E47231EEFC32FD29" box="[828,961,702,727]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStartId-0="2.[136,229,1993,2014]" captionStartId-1="3.[136,229,1591,1612]" captionTargetBox-0="[197,1390,190,1968]" captionTargetBox-1="[151,1413,201,1564]" captionTargetId-0="figure-13@2.[197,1390,190,1968]" captionTargetId-1="figure-14@3.[151,1436,190,1566]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionText-0="FIGURE 1. Didymodon obtusus. A. Plant when dry (scale in mm). B. Plant when moist (scale in mm). C. Cross-section of stem. D. Leaves. E. Upper part of costa (dorsal). F. Upper part of costa (ventral). G. Mid-leaf cells. H. Basal juxtacostal cells. I. Basal marginal cells. J. Axillary hairs. Scale bar (as shown on C): C, J = 100 μm; D = 1 mm; E–I = 40 μm. All from holotype." captionText-1="FIGURE 2. Didymodon obtusus. A. Leaf apex (dorsal). B. Leaf apex (ventral). C–H. Transverse section of leaf, sequentially from apex to base. Scale bar (as shown on H): A–H = 100 μm. All from holotype." figureDoi-0="http://doi.org/10.5281/zenodo.13728632" figureDoi-1="http://doi.org/10.5281/zenodo.13728634" httpUri-0="https://zenodo.org/record/13728632/files/figure.png" httpUri-1="https://zenodo.org/record/13728634/files/figure.png" pageId="1" pageNumber="98">Figures 1–2</figureCitation>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="A0B3651CFFB2AA23E7C631B4FD4FF9ED" pageId="1" pageNumber="98" type="diagnosis">
<paragraph id="E8163697FFB2AA23E7C631B4FEFDFCBF" blockId="1.[136,1451,740,905]" pageId="1" pageNumber="98">
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Diagnosis: 
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differs from the otherwise similar 
<taxonomicName id="2FA94D14FFB2AA23E44931B4FBF4FD07" authorityName="R. H. Zander" authorityYear="1981" baseAuthorityName="Theriot &amp; E. B. Bartram ex E. B. Bartram" box="[775,1031,740,761]" class="Bryopsida" family="Pottiaceae" genus="Didymodon" kingdom="Plantae" order="Pottiales" pageId="1" pageNumber="98" phylum="Bryophyta" rank="variety" species="rigidulus" variety="subulatus">
<emphasis id="DADDEA85FFB2AA23E44931B4FC88FD07" box="[775,891,740,761]" italics="true" pageId="1" pageNumber="98">D. rigidulus</emphasis>
var. 
<emphasis id="DADDEA85FFB2AA23E4E531B4FBF4FD07" box="[939,1031,740,761]" italics="true" pageId="1" pageNumber="98">subulatus</emphasis>
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in its ovate-lanceolate to oblong-lanceolate leaves patent to spreading when moist, obtuse leaf apex, and percurrent costa with 3 layers guide cells at base and without ventral stereids.
</paragraph>
<paragraph id="E8163697FFB2AA23E7C63000FE00FC77" blockId="1.[136,1451,740,905]" pageId="1" pageNumber="98">
Type: 
<emphasis id="DADDEA85FFB2AA23E7F03000FF25FC9B" bold="true" box="[190,214,848,869]" pageId="1" pageNumber="98">—</emphasis>
<collectingCountry id="90BE7607FFB2AA23E7983000FED6FC9B" box="[214,293,848,869]" name="China" pageId="1" pageNumber="98">CHINA</collectingCountry>
. 
<collectingRegion id="2A6DF875FFB2AA23E6633000FE92FC9B" box="[301,353,848,869]" country="China" name="Xizang" pageId="1" pageNumber="98">Tibet</collectingRegion>
, Nagarzê County, 28°55′4.386′N, 90°21′57.888′E, on rocks, 
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, 19 Auguest 2014, 
<emphasis id="DADDEA85FFB2AA23E3EB3000FA58FC9B" box="[1189,1451,848,869]" italics="true" pageId="1" pageNumber="98">Jin Kou &amp; Xiao-Ming Shao</emphasis>
20140819050 (
<typeStatus id="37128835FFB2AA23E6003024FE54FC77" box="[334,423,884,905]" pageId="1" pageNumber="98" type="holotype">holotype</typeStatus>
: BAU!)
</paragraph>
<paragraph id="E8163697FFB2AA23E7C630EAFE01FA35" blockId="1.[136,1452,954,1627]" pageId="1" pageNumber="98">
Plants medium-sized, 
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high, growing in dense turfs, green to reddish brown in upper part, reddish-brown to brownish in lower part. Stems irregularly branched, hyalodermis weakly differentiated, sclerodermis present, central strand developed; axillary hairs filiform, short, usually 3–4 cells long, with one brown basal cell and hyaline upper ones. Rhizoidal tubers absent. Leaves appressed when dry, patent to spreading when moist, ovate-lanceolate to oblong-lanceolate, 1.45–1.95 × 
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, channeled ventrally in the upper part, weakly sheathing; lamina completely or irregularly bistratose in upper middle part of leaf, brownish with KOH; apex obtuse; margins entire, recurved from leaf base to just below apex, not decurrent at base, 2–3-stratose; costa percurrent, 70–87.5 μm wide at base, ventral cells of the costa in the upper half oblate or quadrate, smooth; dorsal surface cells of the costa in the upper half oblate or quadrate, smooth; costa cross-section elliptical, with (2)3 layers of guide cells, with 4–8 cells in each layer, without ventral stereids, 2–4 layers of dorsal stereids, lunulate in shape, generally without hydroids, ventral surface cells differentiated, weakly bulging, smooth, dorsal surface cells differentiated, smooth; upper and middle laminal cells irregularly subquadrate to oblate, 5–6.5 × 4.5–7.5 μm, thin-walled, smooth, not bulging; basal juxtacostal cells short-rectangular to rectangular, 15–32.5 × 7.75–11.25 μm, thin walls, smooth; basal marginal cells quadrate to oblate, 5–8.75 × 10.25–14.5 μm, with thickened transverse walls and thin longitudinal walls, smooth. Gemmae absent. Dioicous. Sporophytes not seen.
</paragraph>
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:— 
<collectingCountry id="90BE7607FFB2AA23E6173686FE44FA11" box="[345,439,1494,1519]" name="China" pageId="1" pageNumber="98">CHINA</collectingCountry>
</emphasis>
. 
<collectingRegion id="2A6DF875FFB2AA23E6863686FDF4FA11" box="[456,519,1494,1519]" country="China" name="Xizang" pageId="1" pageNumber="98">Tibet</collectingRegion>
: Ngamring County, on soil, 
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, 
<geoCoordinate id="8D9D5050FFB2AA23E4A83686FB99FA11" box="[998,1130,1494,1519]" degrees="86" direction="east" minutes="52" orientation="longitude" pageId="1" pageNumber="98" precision="15" seconds="29" value="86.874725">86°52′29′′E</geoCoordinate>
, 
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, 15 Auguest 2014, Xiao-Ming Shao &amp; Jin Kou 20140815037 (BAU).
</paragraph>
</subSubSection>
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<emphasis id="DADDEA85FFB2AA23E7F3354EFE97F9C9" bold="true" box="[189,356,1566,1591]" pageId="1" pageNumber="98">Etymology:—</emphasis>
The specific epithe, 
<taxonomicName id="2FA94D14FFB2AA23E50F354EFD64F9C9" box="[577,663,1566,1591]" class="Bryopsida" family="Pottiaceae" genus="Didymodon" kingdom="Plantae" order="Pottiales" pageId="1" pageNumber="98" phylum="Bryophyta" rank="species" species="obtusus">
<emphasis id="DADDEA85FFB2AA23E50F354EFD64F9C9" box="[577,663,1566,1591]" italics="true" pageId="1" pageNumber="98">obtusus</emphasis>
</taxonomicName>
, refers to the obtuse leaf apex, a noteworthy character that differentiates its most similar species, 
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<emphasis id="DADDEA85FFB2AA23E6D53512FDD1F9A5" box="[411,546,1602,1627]" italics="true" pageId="1" pageNumber="98">D. rigidulus</emphasis>
var. 
<emphasis id="DADDEA85FFB2AA23E5173512FD37F9A5" box="[601,708,1602,1627]" italics="true" pageId="1" pageNumber="98">subulatus</emphasis>
</taxonomicName>
.
</paragraph>
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<emphasis id="DADDEA85FFB2AA23E7C635DAFE53F95D" box="[136,416,1674,1699]" italics="true" pageId="1" pageNumber="98">Distribution and ecology</emphasis>
</paragraph>
<paragraph id="E8163697FFB2AA23E7C63582FBE2F861" blockId="1.[136,1452,1746,1951]" pageId="1" pageNumber="98">
The new species grows on rocks and soil and is known only from two localities in Nagarzê County and Ngamring County. Nagarzê County is located in northern foot of middle part of the Himalayas, and is also the highest area in the Shannan Prefecture with an average elevation of 
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. This area belongs to plateau temperate Semi-arid monsoon climate, with adequate lighting, an annual rainfall of about 
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. Ngamring County has an average elevation of above 
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and belongs to warm-moist semi-arid climate. Owing to harsh environment, the two localities are covered mainly in herbs, lichens and bryophytes (
<bibRefCitation id="8C384B66FFB2AA23E5FB34D6FCA3F861" author="Li, H. - T. &amp; He, J. - S. &amp; Ni, Z. - C. &amp; Zhou, B. - D. &amp; Li, Q. - Z. &amp; Shen, W. - Q." box="[693,848,1926,1951]" pageId="1" pageNumber="98" pagination="31 - 36" refId="ref3383" refString="Li, H. - T., He, J. - S., Ni, Z. - C., Zhou, B. - D., Li, Q. - Z. &amp; Shen, W. - Q. (2004) A study on TWINSPAN classification of meadow plants in Lazi County, Tibet. Acta Agriculturae Universitis Jiangxiensis 26: 31 - 36. [in Chinese]" type="journal article" year="2004">
Li 
<emphasis id="DADDEA85FFB2AA23E59834D6FCFCF861" box="[726,783,1926,1951]" italics="true" pageId="1" pageNumber="98">et al.</emphasis>
2004
</bibRefCitation>
, 
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Liu 
<emphasis id="DADDEA85FFB2AA23E4C734D6FC32F861" box="[905,961,1926,1951]" italics="true" pageId="1" pageNumber="98">et al.</emphasis>
2015
</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
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