Show Lower Taxa
Difference between pages "Ranunculus nivalis" and "Euchiton"
in F. Cuvier, Dict. Sci. Nat. ed. 2, 56: 214. 1828.
Etymology: Greek eu -, good or true, and chiton, tunic, alluding to ‘close-fitting’ clusters of bracts subtending clusters of heads
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| − | |accepted_name= | + | |accepted_name=Euchiton |
| − | |accepted_authority= | + | |accepted_authority=Cassini in F. Cuvier |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
| − | |title= | + | |title=in F. Cuvier, Dict. Sci. Nat. ed. |
| − | |place= | + | |place=2, 56: 214. 1828 |
| − | |year= | + | |year=1828 |
}} | }} | ||
| − | |||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
| − | |hierarchy= | + | |hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Euchiton |
| − | |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[ | + | |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Gnaphalieae]]</div><div class="higher-taxon"><small>genus</small>[[Euchiton]]</div></div> |
| − | |volume=Volume | + | |etymology=Greek eu -, good or true, and chiton, tunic, alluding to ‘close-fitting’ clusters of bracts subtending clusters of heads |
| − | |mention_page= | + | |volume=Volume 19 |
| − | |treatment_page= | + | |mention_page=page 58, 387, 429 |
| + | |treatment_page=page 440 | ||
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| − | --><span class="statement" id="st-undefined" data-properties=""><b> | + | --><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or perennials, 5–80 cm (usually fibrous-rooted, sometimes rhizomatous, usually stoloniferous). <b>Stems</b> usually 1, erect. <b>Leaves</b> basal and cauline (sometimes in rosettes); alternate; petiolate or sessile; blades oblanceolate, spatulate, lanceolate, or linear, bases cuneate or ampliate, margins entire (sometimes undulate and/or revolute), faces bicolor, abaxial usually silvery, tomentose, adaxial usually green, glabrate or glabrous. <b>Heads</b> disciform, usually in terminal clusters (subtended by leafy bracts, sometimes with axillary clusters), rarely borne singly. <b>Involucres</b> narrowly campanulate to cylindric, 3–5 mm. <b>Phyllaries</b> in 3–4+ series, mostly stramineous to brownish, sometimes purplish to pinkish (hyaline, stereomes not glandular), unequal, chartaceous toward tips. <b>Receptacles</b> flat, smooth, epaleate. <b>Peripheral</b> (pistillate) florets 16–150 (more numerous than bisexual); corollas purple or distally purplish. <b>Inner</b> (bisexual) florets 1–7; corollas purple or distally purplish. <b>Cypselae</b> obovoid-ellipsoid, slightly flattened, faces minutely hairy or papillate (papilliform hairs or papillae ± clavate, not myxogenic); pappi readily falling (singly or in groups), of 12–20, distinct or basally coherent, barbellate bristles in 1 series. <b>x</b> = 14.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| − | + | |distribution=Australia;New Zealand;New Guinea;e Asia;some species widely naturalized. | |
| − | + | |discussion=<p>Species 17 (3 in the flora).</p> | |
| − | |||
| − | |distribution= | ||
|tables= | |tables= | ||
| − | |references= | + | |references={{Treatment/Reference |
| + | |id=nesom2002a | ||
| + | |text=Nesom, G. L. 2002. Euchiton (Asteraceae: Gnaphalieae) in North America and Hawaii. Sida 20: 515–521. | ||
| + | }} | ||
}}<!-- | }}<!-- | ||
| − | --><!-- | + | --><div class="treatment-key"> |
| + | ==Key== | ||
| + | <div class="treatment-key-group"> | ||
| + | |||
| + | {| class="wikitable fna-keytable" | ||
| + | |-id=key-0-1 | ||
| + | |1 | ||
| + | |Annuals; taprooted; leaf bases not clasping; bracts subtending heads 4–8; heads in globose clusters; bisexual florets 1 | ||
| + | |[[Euchiton sphaericus|Euchiton sphaericus]] | ||
| + | |-id=key-0-1 | ||
| + | |1 | ||
| + | |Perennials or biennials; fibrous-rooted; leaf bases subclasping; bracts subtending heads 2–5; heads in hemispheric clusters; bisexual florets 3–7 | ||
| + | |[[#key-0-2| > 2]] | ||
| + | |-id=key-0-2 | ||
| + | |2 | ||
| + | |Stolons usually present; basal leaves in rosettes at flowering; cauline leaves 2–4(–6), blades linear to oblanceolate, 1–2 cm × 1–2 mm; bracts subtending heads 2–3, not surpassing heads; pistillate florets 40–60 | ||
| + | |[[Euchiton gymnocephalus|Euchiton gymnocephalus]] | ||
| + | |-id=key-0-2 | ||
| + | |2 | ||
| + | |Stolons usually absent; basal leaves withering before flowering; cauline leaves 6–10, blades mostly linear, 3–8 cm × 2–3 mm; bracts subtending heads 3–5, surpassing heads; pistillate florets 80–150 | ||
| + | |[[Euchiton involucratus|Euchiton involucratus]] | ||
| + | |} | ||
| + | </div></div><!-- | ||
-->{{#Taxon: | -->{{#Taxon: | ||
| − | name= | + | name=Euchiton |
| − | |author= | + | |author=Guy L. Nesom |
| − | |authority= | + | |authority=Cassini in F. Cuvier |
| − | |rank= | + | |rank=genus |
| − | |parent rank= | + | |parent rank=tribe |
|synonyms= | |synonyms= | ||
|basionyms= | |basionyms= | ||
| − | |family= | + | |family=Asteraceae |
| − | | | + | |illustrator=Barbara Alongi |
| − | + | |distribution=Australia;New Zealand;New Guinea;e Asia;some species widely naturalized. | |
| − | + | |introduced=true | |
| − | |distribution= | + | |reference=nesom2002a |
| − | |reference= | + | |publication title=in F. Cuvier, Dict. Sci. Nat. ed. |
| − | |publication title= | + | |publication year=1828 |
| − | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_728.xml |
| − | | | + | |tribe=Asteraceae tribe Gnaphalieae |
| − | | | + | |genus=Euchiton |
| − | |||
| − | |||
}}<!-- | }}<!-- | ||
| − | -->[[Category:Treatment]][[Category: | + | -->[[Category:Treatment]][[Category:Asteraceae tribe Gnaphalieae]] |
Revision as of 19:38, 24 September 2019
Annuals or perennials, 5–80 cm (usually fibrous-rooted, sometimes rhizomatous, usually stoloniferous). Stems usually 1, erect. Leaves basal and cauline (sometimes in rosettes); alternate; petiolate or sessile; blades oblanceolate, spatulate, lanceolate, or linear, bases cuneate or ampliate, margins entire (sometimes undulate and/or revolute), faces bicolor, abaxial usually silvery, tomentose, adaxial usually green, glabrate or glabrous. Heads disciform, usually in terminal clusters (subtended by leafy bracts, sometimes with axillary clusters), rarely borne singly. Involucres narrowly campanulate to cylindric, 3–5 mm. Phyllaries in 3–4+ series, mostly stramineous to brownish, sometimes purplish to pinkish (hyaline, stereomes not glandular), unequal, chartaceous toward tips. Receptacles flat, smooth, epaleate. Peripheral (pistillate) florets 16–150 (more numerous than bisexual); corollas purple or distally purplish. Inner (bisexual) florets 1–7; corollas purple or distally purplish. Cypselae obovoid-ellipsoid, slightly flattened, faces minutely hairy or papillate (papilliform hairs or papillae ± clavate, not myxogenic); pappi readily falling (singly or in groups), of 12–20, distinct or basally coherent, barbellate bristles in 1 series. x = 14.
Distribution
Australia, New Zealand, New Guinea, e Asia, some species widely naturalized.
Discussion
Species 17 (3 in the flora).
Selected References
Key
| 1 | Annuals; taprooted; leaf bases not clasping; bracts subtending heads 4–8; heads in globose clusters; bisexual florets 1 | Euchiton sphaericus |
| 1 | Perennials or biennials; fibrous-rooted; leaf bases subclasping; bracts subtending heads 2–5; heads in hemispheric clusters; bisexual florets 3–7 | > 2 |
| 2 | Stolons usually present; basal leaves in rosettes at flowering; cauline leaves 2–4(–6), blades linear to oblanceolate, 1–2 cm × 1–2 mm; bracts subtending heads 2–3, not surpassing heads; pistillate florets 40–60 | Euchiton gymnocephalus |
| 2 | Stolons usually absent; basal leaves withering before flowering; cauline leaves 6–10, blades mostly linear, 3–8 cm × 2–3 mm; bracts subtending heads 3–5, surpassing heads; pistillate florets 80–150 | Euchiton involucratus |