View source for Microseris douglasii subsp. tenella

{{Treatment/ID
|accepted_name=Microseris douglasii subsp. tenella
|accepted_authority=(A. Gray) K. L. Chambers
|publications={{Treatment/Publication
|title=Contr. Dudley Herb.
|place=4: 294. 1955
|year=1955
}}
|common_names=Tender silverpuffs
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Calaïs tenella
|authority=A. Gray
|rank=species
|publication_title=in War Department [U.S.], Pacif. Railr. Rep.
|publication_place=4(5): 114, plate 17, figs. 6–10. 1857
}}
|synonyms={{Treatment/ID/Synonym
|name=Calaïs aphantocarpha
|authority=A. Gray
|rank=species
}} {{Treatment/ID/Synonym
|name=Microseris aphantocarpha
|authority=(A. Gray) Schultz-Bipontinus
|rank=species
}} {{Treatment/ID/Synonym
|name=Microseris tenella
|authority=(A. Gray) Schultz-Bipontinus
|rank=species
}} {{Treatment/ID/Synonym
|name=Microseris tenella var. aphantocarpha
|authority=(A. Gray) S. F. Blake
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Microseris;Microseris douglasii;Microseris douglasii subsp. tenella
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cichorieae]]</div><div class="higher-taxon"><small>genus</small>[[Microseris]]</div><div class="higher-taxon"><small>species</small>[[Microseris douglasii]]</div><div class="higher-taxon"><small>subspecies</small>[[Microseris douglasii subsp. tenella]]</div></div>
|volume=Volume 19
|mention_page=page 343, 347
|treatment_page=page 344
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="cypsela shape;cypsela some measurement;rib size"><b>Cypselae </b>truncate-fusiform, 3–6.5 mm (tapered to basal callosities, widest beyond middles, filled by embryos), ribs constricted at apices;</span> <span class="statement" id="st-d0_s1" data-properties="scale shape;scale shape;scale shape;scale shape;scale shape;scale some measurement">pappi usually of deltate or ovate, arcuate, usually plane or barely involute scales 0.5–1 mm, shorter than cypselae, sometimes nearly obsolete.</span> <span class="statement" id="st-d0_s2" data-properties="pappus height or length or size;pappus prominence;2n chromosome quantity">2n = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar-–Jun.
|habitat=Sandy or clay soils, flats and hillsides, sometimes on serpentine slopes, grasslands and open oak woodlands
|elevation=0–500 m
|distribution=Calif.
|discussion=<p>Subspecies tenella intergrades completely with subsp. douglasii in west-central California. It occurs near the immediate coast; morphologic variation and chloroplast DNA suggest a history of hybridization with M. bigelovii.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Microseris douglasii subsp. tenella
|authority=(A. Gray) K. L. Chambers
|rank=subspecies
|parent rank=species
|synonyms=Calaïs aphantocarpha;Microseris aphantocarpha;Microseris tenella;Microseris tenella var. aphantocarpha
|basionyms=Calaïs tenella
|family=Asteraceae
|phenology=Flowering Mar-–Jun.
|habitat=Sandy or clay soils, flats and hillsides, sometimes on serpentine slopes, grasslands and open oak woodlands
|elevation=0–500 m
|distribution=Calif.
|reference=None
|publication title=Contr. Dudley Herb.
|publication year=1955
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_534.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Microseris
|species=Microseris douglasii
|subspecies=Microseris douglasii subsp. tenella
|2n chromosome quantity=18
|cypsela shape=truncate-fusiform
|cypsela some measurement=3mm;6.5mm
|pappus height or length or size=shorter
|pappus prominence=obsolete
|rib size=constricted
|scale shape=involute;plane;arcuate;ovate;deltate
|scale some measurement=0.5mm;1mm
}}<!--

-->[[Category:Treatment]][[Category:Microseris douglasii]]