View source for Kelseya ← Kelseya You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Kelseya |accepted_authority=Rydberg in N. L. Britton et al. |publications={{Treatment/Publication |title=in N. L. Britton et al., N. Amer. Fl. |place=22: 254. 1908 |year=1908 }} |special_status={{Treatment/ID/Special_status |code=E |label=Endemic }} |basionyms= |synonyms= |hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Spiraeeae;Kelseya |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 Spiraeeae]]</div><div class="higher-taxon"><small>genus</small>[[Kelseya]]</div></div> |etymology=For Francis Duncan Kelsey, 1849 – 1905 Montana Botanist |volume=Volume 9 |mention_page=page 398, 412, 415, 422 |treatment_page=page 414 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form;whole_organism shape;whole_organism growth form;whole_organism some measurement;whole_organism growth form"><b>Shrubs,</b> densely cespitose, pulvinate, mat-forming, 0.3–1 dm;</span> <span class="statement" id="st-d0_s1" data-properties="caudex texture">caudices woody.</span> <span class="statement" id="st-d0_s2" data-properties="stem quantity;stem orientation;stem growth form or orientation;stem architecture;stem architecture;internode height or length or size"><b>Stems </b>1–20+, semierect to prostrate and decumbent with very short internodes, densely, intricately branched, leafy;</span> <span class="statement" id="st-d0_s3" data-properties="bark coloration">bark brown to gray or dark gray in age;</span> <span class="statement" id="st-d0_s4" data-properties="short-shoot presence">short-shoots usually present, long-shoots rarely present;</span> <span class="statement" id="st-d0_s5" data-properties="long-shoot presence;long-shoot pubescence">glabrous.</span> <span class="statement" id="st-d0_s6" data-properties="leaf duration;cauline leaf arrangement;cauline leaf arrangement;cauline leaf arrangement;cauline leaf architecture"><b>Leaves </b>persistent, cauline, alternate, tightly crowded and imbricate, simple;</span> <span class="statement" id="st-d0_s7" data-properties="petiole presence">petiole absent;</span> <span class="statement" id="st-d0_s8" data-properties="blade shape;blade some measurement;blade texture;margin prominence or shape;margin architecture or shape;margin prominence;surface pubescence">blade oblanceolate to spatulate-obovate, 0.2–0.4 cm, coriaceous, margins flat, entire, venation not visible, surfaces sericeous.</span> <span class="statement" id="st-d0_s9" data-properties="inflorescence position;inflorescence position;flower architecture or arrangement or growth form;flower pubescence"><b>Inflorescences </b>terminal or pseudoterminal, flowers solitary, hirsute to villous;</span> <span class="statement" id="st-d0_s10" data-properties="bract presence">bracts absent;</span> <span class="statement" id="st-d0_s11" data-properties="bracteole presence">bracteoles absent.</span> <span class="statement" id="st-d0_s12" data-properties="pedicel presence"><b>Pedicels </b>absent.</span> <span class="statement" id="st-d0_s13" data-properties="flower diameter;flower diameter"><b>Flowers </b>3–6 (–8) mm diam.;</span> <span class="statement" id="st-d0_s14" data-properties="epicalyx bractlet presence">epicalyx bractlets 0;</span> <span class="statement" id="st-d0_s15" data-properties="hypanthium shape;hypanthium some measurement;hypanthium pubescence">hypanthium hemispheric, 1–2 mm, sericeous;</span> <span class="statement" id="st-d0_s16" data-properties="sepal quantity;sepal orientation;sepal shape">sepals 5, erect to slightly reflexed, oblanceolate;</span> <span class="statement" id="st-d0_s17" data-properties="petal quantity;petal coloration;petal coloration;petal shape">petals 5, pink to pinkish, often purple-tinged, elliptic to oblong;</span> <span class="statement" id="st-d0_s18" data-properties="stamen quantity;stamen length or size">stamens 7–12, slightly longer than petals;</span> <span class="statement" id="st-d0_s19" data-properties="torus shape;torus development;torus prominence">torus annular to weakly developed and inconspicuous;</span> <span class="statement" id="st-d0_s20" data-properties="carpel quantity;carpel quantity;carpel fusion;carpel pubescence;carpel pubescence;carpel pubescence;style position or structure subtype;style fusion">carpels 3 or 4 (or 5), free, glabrous or glabrate, sparsely villous on adaxial margin, styles terminal, adherent to hypanthium;</span> <span class="statement" id="st-d0_s21" data-properties="ovule quantity">ovules 3–5.</span> <span class="statement" id="st-d0_s22" data-properties="fruit shape;fruit some measurement;fruit pubescence;fruit pubescence;fruit pubescence;follicle arrangement;follicle quantity"><b>Fruits </b>aggregated follicles, 3–5, ellipsoid, 2–3 mm, glabrate or sparsely hirsute, sparsely villous on adaxial margin;</span> <span class="statement" id="st-d0_s23" data-properties="hypanthium duration">hypanthium persistent;</span> <span class="statement" id="st-d0_s24" data-properties="sepal duration;sepal orientation">sepals persistent, erect to slightly reflexed;</span> <span class="statement" id="st-d0_s25" data-properties="style duration">styles deciduous.</span> <span class="statement" id="st-d0_s26" data-properties=""><b>Seeds </b>1 or 2 (–4), elongate, fusiform.</span> <span class="statement" id="st-d0_s27" data-properties="seed quantity;seed atypical quantity;seed quantity;seed shape;seed shape;x chromosome quantity">x = 9.</span><!-- -->{{Treatment/Body |distribution=nw United States |discussion=<p>Species 1.</p><!-- --><p>The phylogenetic work on the Rosaceae by D. Potter et al. (2007) and the nucleotide sequence data analysis of the Spiraeeae by Potter et al. (2007b) identified a clade containing Kelseya, Petrophytum, and Spiraea. A cladistic and numerical taxonomic study using morphologic characters ascertained that Kelseya and Petrophytum were nearest neighbors (J. Henrickson 1985). The work of Potter et al. (2007b) suggested that the reduced growth habit in the Spiraeeae evolved at least twice. The carpels of Kelseya are adherent to the hypanthium and each has an independent vascular supply of three bundles per carpel (C. Sterling 1966). Using Spiraea trilobata as a model (R. C. Evans and T. A. Dickinson 1999b) for gynoecial development in Kelseya, the five primordia are initiated separately and grow independently, yet simultaneously, with the intercalary growth of the hypanthium that occurs between the point of insertion of the perianth and the androecium. As the carpels of Kelseya mature, they become adherent to the hypanthium (Sterling); the carpels of S. trilobata remain free from the hypanthium (Evans and Dickinson). In contrast, in the Maloideae (J. R. Rohrer et al. 1991, 1994) and in Sorbaria and Vauquelinia (Evans and Dickinson), the region of hypanthial intercalary growth extends proximally from the gynoecium, and as the hypanthium and carpels develop, the abaxial margins of the carpels become adnate to the growing hypanthium. The adherence of the carpels displayed by Kelseya, found more typically in other genera of Pyreae and Amygdaleae, appears to be an unusual morphological feature that may be a result of the reduction in plant stature and habit possibly associated with its xeric alpine habitat.</p> |tables= |references= }}<!-- --><!-- -->{{#Taxon: name=Kelseya |author=Richard Lis |authority=Rydberg in N. L. Britton et al. |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Rosaceae |distribution=nw United States |reference=None |publication title=in N. L. Britton et al., N. Amer. Fl. |publication year=1908 |special status=Endemic |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V9/V9_700.xml |subfamily=Rosaceae subfam. Amygdaloideae |tribe=Rosaceae tribe Spiraeeae |genus=Kelseya |bark coloration=brown;gray or dark gray |blade shape=oblanceolate;spatulate-obovate |blade some measurement=0.2cm;0.4cm |blade texture=coriaceous |bract presence=absent |bracteole presence=absent |carpel fusion=free |carpel pubescence=villous;glabrate;glabrous |carpel quantity=4;3 |caudex texture=woody |cauline leaf architecture=simple |cauline leaf arrangement=imbricate;crowded;alternate |epicalyx bractlet presence=absent |flower architecture or arrangement or growth form=solitary |flower diameter=3mm;6mm |flower pubescence=hirsute;villous |follicle arrangement=aggregated |follicle quantity=3;5 |fruit pubescence=villous;hirsute;glabrate |fruit shape=ellipsoid |fruit some measurement=2mm;3mm |hypanthium duration=persistent |hypanthium pubescence=sericeous |hypanthium shape=hemispheric |hypanthium some measurement=1mm;2mm |inflorescence position=pseudoterminal;terminal |internode height or length or size=short |leaf duration=persistent |long-shoot presence=absent |long-shoot pubescence=glabrous |margin architecture or shape=entire |margin prominence=not visible |margin prominence or shape=flat |ovule quantity=3;5 |pedicel presence=absent |petal coloration=purple-tinged;pink;pinkish |petal quantity=5 |petal shape=elliptic;oblong |petiole presence=absent |seed atypical quantity=2;4 |seed quantity=2;1 |seed shape=fusiform;elongate |sepal duration=persistent |sepal orientation=erect;slightly reflexed |sepal quantity=5 |sepal shape=oblanceolate |short-shoot presence=absent |stamen length or size=slightly longer |stamen quantity=7;12 |stem architecture=leafy;branched |stem growth form or orientation=decumbent |stem orientation=semierect to prostrate |stem quantity=1;20 |style duration=deciduous |style fusion=adherent |style position or structure subtype=terminal |surface pubescence=sericeous |torus development=developed |torus prominence=inconspicuous |torus shape=annular |whole_organism growth form=shrub;mat-forming;cespitose |whole_organism shape=pulvinate |whole_organism some measurement=0.3dm;1dm |x chromosome quantity=9 }}<!-- -->[[Category:Treatment]][[Category:Rosaceae tribe Spiraeeae]] Templates used on this page: Template:Rosaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/ID/Special status (view source) Template:Treatment/Publication (view source) Return to Kelseya.