View source for Coleogyne

{{Treatment/ID
|accepted_name=Coleogyne
|accepted_authority=Torrey
|publications={{Treatment/Publication
|title=Proc. Amer. Assoc. Advancem. Sci.
|place=4: 192. 1851
|year=1851
}}
|common_names=Blackbrush
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Kerrieae;Coleogyne
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Amygdaloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Kerrieae]]</div><div class="higher-taxon"><small>genus</small>[[Coleogyne]]</div></div>
|etymology=Greek koleos, sheath, and gyne, female, alluding to thin staminal tubelike sheath surrounding ovary and style
|volume=Volume 9
|mention_page=page 21, 386, 387
|treatment_page=page 390
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism atypical some measurement;whole_organism some measurement;whole_organism growth form;herbage pubescence;hair fixation or orientation;hair fixation"><b>Shrubs,</b> 2–6 (–10) dm, herbage strigose, with appressed medifixed hairs.</span> <span class="statement" id="st-d0_s1" data-properties="stem quantity;stem orientation"><b>Stems </b>15–150, stiffly erect;</span> <span class="statement" id="st-d0_s2" data-properties="bark coloration;bark coloration;bark coloration or pubescence or relief">bark dark russet, becoming gray, striate;</span> <span class="statement" id="st-d0_s3" data-properties="long-shoot architecture">long-shoots divaricately and oppositely branched, short-shoots present;</span> <span class="statement" id="st-d0_s4" data-properties="short-shoot presence;short-shoot architecture">unarmed (stiff dead branches resembling thorns).</span> <span class="statement" id="st-d0_s5" data-properties="leaf duration;cauline leaf arrangement;cauline leaf arrangement or growth form"><b>Leaves </b>persistent (drought deciduous), cauline, opposite and clustered on short-shoots;</span> <span class="statement" id="st-d0_s6" data-properties="stipule duration;stipule shape;margin architecture or shape">stipules persistent on distal leaf-base margins, deltate-lanceolate, margins entire;</span> <span class="statement" id="st-d0_s7" data-properties="petiole prominence">petiole obscure;</span> <span class="statement" id="st-d0_s8" data-properties="blade shape;blade some measurement;blade size or width;blade texture;margin width;margin shape;margin architecture or shape">blade oblanceolate-spatulate, 0.6–1.2 cm, thickened, leathery, margins thick, rounded (not revolute), entire.</span> <span class="statement" id="st-d0_s9" data-properties="inflorescence position or structure subtype;short-shoot spur length or size;flower architecture or arrangement or growth form"><b>Inflorescences </b>terminal on long and short-shoot spurs, flowers solitary;</span> <span class="statement" id="st-d0_s10" data-properties="bract presence;bract size;bract architecture or shape">bracts present, reduced, leaflike.</span> <span class="statement" id="st-d0_s11" data-properties="pedicel size"><b>Pedicels </b>reduced.</span> <span class="statement" id="st-d0_s12" data-properties="flower diameter"><b>Flowers </b>11–14 mm diam.;</span> <span class="statement" id="st-d0_s13" data-properties="epicalyx bractlet presence">epicalyx bractlets 0;</span> <span class="statement" id="st-d0_s14" data-properties="hypanthium shape;hypanthium some measurement">hypanthium campanulate, 1–2 mm;</span> <span class="statement" id="st-d0_s15" data-properties="sepal quantity;sepal orientation;sepal coloration;sepal position;sepal shape;sepal position;sepal shape;margin width">sepals 4 (rarely 5), weakly spreading, abaxially yellow, outer narrowly ovate, inner broadly ovate, margins thin;</span> <span class="statement" id="st-d0_s16" data-properties="petal presence;petal quantity;petal duration;petal coloration;petal shape;flower arrangement">petals usually 0, infrequently 1–4 (or 5) on scattered flowers, caducous, translucent yellow, spatulate;</span> <span class="statement" id="st-d0_s17" data-properties="stamen atypical quantity;stamen atypical quantity;stamen quantity;stamen variability">stamens (16–) 20–25 (–30), equal to sepals;</span> <span class="statement" id="st-d0_s18" data-properties="sheath shape;ovary position relational;proximal style position relational">torus extending into tubelike sheath surrounding ovary and proximal style (interior sericeous, exterior bearing some stamens);</span> <span class="statement" id="st-d0_s19" data-properties="carpel quantity;carpel pubescence;style position;style length">carpels 1 (rarely 2), glabrous except at style base, styles lateral, exserted beyond sheath, sericeous most of length;</span> <span class="statement" id="st-d0_s20" data-properties="ovule quantity;ovule position">ovule 1, lateral.</span> <span class="statement" id="st-d0_s21" data-properties="fruits achene atypical quantity;fruits achene quantity;fruits achene coloration;fruits achene shape;fruits achene width;fruits achene some measurement;fruits achene reflectance;fruits achene pubescence"><b>Fruits </b>achenes, 1 (–2), brown, ovoid-reniform, distally narrower, 5.3–5.8 mm, shiny, glabrous;</span> <span class="statement" id="st-d0_s22" data-properties="hypanthium duration">hypanthium persistent;</span> <span class="statement" id="st-d0_s23" data-properties="">sepals persistent, ascending.</span> <span class="statement" id="st-d0_s24" data-properties="sepal duration;sepal orientation;x chromosome quantity">x = 8.</span><!--

-->{{Treatment/Body
|distribution=sw United States
|discussion=<p>Species 1.</p><!--
--><p>Coleogyne is a xeromorphic desert shrub with floral features unusual within Rosaceae: a peculiar sheathlike torus surrounds the carpel and most of the style that bears some of the stamens, four sepals, and petals commonly absent but the inner sepal surface strongly yellow; vegetatively, Coleogyne is further distinguished by its opposite leaves and uniformly oriented medifixed trichomes. The single-ovuled, solitary ovary has a lateral style, suggesting relationship with multi-ovuled ancestors. Molecular data support relationships in the Kerrieae in subfam. Amygdaloideae (D. Potter et al. 2007).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Coleogyne
|author=James Henrickson;Bruce D. Parfitt†
|authority=Torrey
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Rosaceae
|distribution=sw United States
|reference=None
|publication title=Proc. Amer. Assoc. Advancem. Sci.
|publication year=1851
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V9/V9_652.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Kerrieae
|genus=Coleogyne
|bark coloration=gray;dark russet
|bark coloration or pubescence or relief=striate
|blade shape=oblanceolate-spatulate
|blade size or width=thickened
|blade some measurement=0.6cm;1.2cm
|blade texture=leathery
|bract architecture or shape=leaflike
|bract presence=absent
|bract size=reduced
|carpel pubescence=glabrous
|carpel quantity=1
|cauline leaf arrangement=opposite
|cauline leaf arrangement or growth form=clustered
|epicalyx bractlet presence=absent
|flower architecture or arrangement or growth form=solitary
|flower arrangement=scattered
|flower diameter=11mm;14mm
|fruits achene atypical quantity=1;2
|fruits achene coloration=brown
|fruits achene pubescence=glabrous
|fruits achene quantity=1
|fruits achene reflectance=shiny
|fruits achene shape=ovoid-reniform
|fruits achene some measurement=5.3mm;5.8mm
|fruits achene width=narrower
|hair fixation=medifixed
|hair fixation or orientation=appressed
|herbage pubescence=strigose
|hypanthium duration=persistent
|hypanthium shape=campanulate
|hypanthium some measurement=1mm;2mm
|inflorescence position or structure subtype=terminal
|leaf duration=persistent
|long-shoot architecture=branched
|margin architecture or shape=entire;entire
|margin shape=rounded
|margin width=thin;thick
|ovary position relational=surrounding
|ovule position=lateral
|ovule quantity=1
|pedicel size=reduced
|petal coloration=translucent yellow
|petal duration=caducous
|petal presence=absent
|petal quantity=1;4
|petal shape=spatulate
|petiole prominence=obscure
|proximal style position relational=surrounding
|sepal coloration=yellow
|sepal duration=persistent
|sepal orientation=ascending;spreading
|sepal position=inner;outer
|sepal quantity=4
|sepal shape=ovate;ovate
|sheath shape=tubelike
|short-shoot architecture=unarmed
|short-shoot presence=absent
|short-shoot spur length or size=long
|stamen atypical quantity=25;30
|stamen quantity=20;25
|stamen variability=equal
|stem orientation=erect
|stem quantity=15;150
|stipule duration=persistent
|stipule shape=deltate-lanceolate
|style length=sericeous
|style position=lateral
|whole_organism atypical some measurement=6dm;10dm
|whole_organism growth form=shrub
|whole_organism some measurement=2dm;6dm
|x chromosome quantity=8
}}<!--

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