View source for Jamesia

{{Treatment/ID
|accepted_name=Jamesia
|accepted_authority=Torrey & A. Gray
|publications={{Treatment/Publication
|title=Fl. N. Amer.
|place=1: 593. 1840
|year=1840
}}
|common_names=Cliffbush;waxflower
|basionyms=
|synonyms=
|hierarchy=Hydrangeaceae;Jamesia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Hydrangeaceae]]</div><div class="higher-taxon"><small>genus</small>[[Jamesia]]</div></div>
|etymology=For Edwin P. James, 1797–1861, American physician and naturalist on the Stephen Harriman Long expeditions of 1819 & 1820
|volume=Volume 12
|mention_page=page 462, 463
|treatment_page=page 464
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs.</b> Stems ascending or spreading. <b>Bark</b> exfoliating in sheets, strips, or strings. <b>Branches</b> ascending, spreading, or descending; twigs with simple trichomes. <b>Leaves</b> deciduous, opposite; petiole present; blade ovate or broadly ovate to obovate, rhombic, or suborbiculate, herbaceous, margins usually crenate to dentate, rarely entire, plane; venation pinnate. <b>Inflorescences</b> terminal, cymes, 2–35-flowered, sometimes flowers solitary; peduncle absent or present. <b>Pedicels</b> present. <b>Flowers</b> bisexual; perianth and androecium perigynous; hypanthium completely adnate to ovary, hemispheric, not ribbed in fruit; sepals persistent, 4–5, erect, lanceolate to narrowly ovate, sparsely to densely strigose, canescent, or sericeous; petals 4–5, imbricate, spreading, white or pink, obovate or oblanceolate, base clawed, sometimes obscurely, surfaces hairy; stamens 8 or 10; filaments distinct, dorsiventrally flattened, gradually or abruptly tapered from base to narrow apex, apex not 2-lobed; anthers depressed-ovate; pistil 3–5-carpellate, ovary to 1/2 inferior, partially 3–5-locular initially, becoming 1-locular; placentation axile proximally, parietal distally; styles persistent, (2–)3–5, distinct. <b>Capsules</b> ovoid or conic, indurate, dehiscence basipetally septicidal to middle of fruit. <b>Seeds</b> 25–50 per locule, orangish brown or tan, ellipsoid. <b>x</b> = 16.</span><!--

-->{{Treatment/Body
|distribution=United States;n Mexico.
|discussion=<p>Species 2 (2 in the flora).</p><!--
--><p>This treatment of <i>Jamesia</i> is essentially an adaptation of that by N. H. Holmgren and P. K. Holmgren (1989).</p><!--
--><p>Fossil leaves referred to <i>Jamesia</i> have been identified in Oligocene sediments from Colorado and Montana; the identity of material from the latter site is ambiguous (N. H. Holmgren and P. K. Holmgren 1989).</p><!--
--><p>In the key and descriptions that follow, tooth number is per leaf.</p>
|tables=
|references={{Treatment/Reference
|id=holmgren1989a
|text=Holmgren, N. H. and P. K. Holmgren. 1989. A taxonomic study of Jamesia (Hydrangeaceae). Brittonia 41: 335–350.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Sepals 5; petals 5; stamens 10; inflorescences usually 3–35-flowered, cymose, rarely 1–2-flowered on lateral branches; leaf blade margins (5–)9–51(–69)-toothed.
|[[Jamesia americana|Jamesia americana]]
|-id=key-0-1
|1
|Sepals 4; petals 4; stamens 8; inflorescences (1–)3-flowered; leaf blade margins usually 3–13(–16)-toothed, rarely entire.
|[[Jamesia tetrapetala|Jamesia tetrapetala]]
|}
</div></div><!--

-->{{#Taxon:
name=Jamesia
|author=Craig C. Freeman
|authority=Torrey & A. Gray
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Hydrangeaceae
|distribution=United States;n Mexico.
|reference=holmgren1989a
|publication title=Fl. N. Amer.
|publication year=1840
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_455.xml
|genus=Jamesia
}}<!--

-->[[Category:Treatment]][[Category:Hydrangeaceae]]