Difference between revisions of "Tofieldia"
Fl. Angl. ed. 2, 157. 1778.
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, rhizomatous, glabrous. <b>Stems</b> scapelike, sometimes with 1–3 leaves near base, smooth. <b>Leaves</b> equitant, 2-ranked; blade linear. <b>Inflorescences</b> terminal, racemose, open to dense, sometimes spikelike, bracteate, sometimes bracteolate, elongating in fruit; bracteoles connate in epicalyx. <b>Flowers</b> inserted singly; tepals persistent, 6, in 2 somewhat dissimilar series, distinct; stamens 6; filaments dilated basally, strongly flattened (except T. coccinea); anthers basifixed, 2-locular, introrse, without appendages; ovary superior, stipitate, apocarpous basally, glabrous; intercarpellary nectary present; styles 3. <b>Fruits</b> capsular, broadly ellipsoid to globose or obovoid, chartaceous, glabrous, dehiscence septicidal, then adaxially loculicidal. <b>Seeds</b> reddish brown, without appendages. <b>x</b> = 15.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, rhizomatous, glabrous. <b>Stems</b> scapelike, sometimes with 1–3 leaves near base, smooth. <b>Leaves</b> equitant, 2-ranked; blade linear. <b>Inflorescences</b> terminal, racemose, open to dense, sometimes spikelike, bracteate, sometimes bracteolate, elongating in fruit; bracteoles connate in epicalyx. <b>Flowers</b> inserted singly; tepals persistent, 6, in 2 somewhat dissimilar series, distinct; stamens 6; filaments dilated basally, strongly flattened (except <i>T. coccinea</i>); anthers basifixed, 2-locular, introrse, without appendages; ovary superior, stipitate, apocarpous basally, glabrous; intercarpellary nectary present; styles 3. <b>Fruits</b> capsular, broadly ellipsoid to globose or obovoid, chartaceous, glabrous, dehiscence septicidal, then adaxially loculicidal. <b>Seeds</b> reddish brown, without appendages. <b>x</b> = 15.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
|distribution=North America;Eurasia. | |distribution=North America;Eurasia. | ||
|discussion=<p>Species 7 or 8 (3 in the flora).</p><!-- | |discussion=<p>Species 7 or 8 (3 in the flora).</p><!-- | ||
| − | --><p>Following the example of J. G. Baker (1879) and R. R. Gates (1918), this treatment of Tofieldia excludes the species of sect. Triantha, which is recognized instead as a distinct genus; see J. G. Packer (1993). Tofieldia sometimes has been treated very broadly, to include not only Triantha but also Pleea (W. B. Zomlefer 1997c).</p> | + | --><p>Following the example of J. G. Baker (1879) and R. R. Gates (1918), this treatment of <i>Tofieldia</i> excludes the species of sect. <i>Triantha</i>, which is recognized instead as a distinct genus; see J. G. Packer (1993). <i>Tofieldia</i> sometimes has been treated very broadly, to include not only <i>Triantha</i> but also <i>Pleea</i> (W. B. Zomlefer 1997c).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1778 | |publication year=1778 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V26/V26_26.xml |
|genus=Tofieldia | |genus=Tofieldia | ||
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-->[[Category:Treatment]][[Category:Liliaceae]] | -->[[Category:Treatment]][[Category:Liliaceae]] | ||
Latest revision as of 21:14, 5 November 2020
Herbs, perennial, rhizomatous, glabrous. Stems scapelike, sometimes with 1–3 leaves near base, smooth. Leaves equitant, 2-ranked; blade linear. Inflorescences terminal, racemose, open to dense, sometimes spikelike, bracteate, sometimes bracteolate, elongating in fruit; bracteoles connate in epicalyx. Flowers inserted singly; tepals persistent, 6, in 2 somewhat dissimilar series, distinct; stamens 6; filaments dilated basally, strongly flattened (except T. coccinea); anthers basifixed, 2-locular, introrse, without appendages; ovary superior, stipitate, apocarpous basally, glabrous; intercarpellary nectary present; styles 3. Fruits capsular, broadly ellipsoid to globose or obovoid, chartaceous, glabrous, dehiscence septicidal, then adaxially loculicidal. Seeds reddish brown, without appendages. x = 15.
Distribution
North America, Eurasia.
Discussion
Species 7 or 8 (3 in the flora).
Following the example of J. G. Baker (1879) and R. R. Gates (1918), this treatment of Tofieldia excludes the species of sect. Triantha, which is recognized instead as a distinct genus; see J. G. Packer (1993). Tofieldia sometimes has been treated very broadly, to include not only Triantha but also Pleea (W. B. Zomlefer 1997c).
Selected References
None.
Lower Taxa
Key
| 1 | Margins of bracts 3-lobed; bracteoles absent. | Tofieldia pusilla |
| 1 | Margins of bracts ± entire; bracteoles 3-lobed. | > 2 |
| 2 | Stems 2–20 cm; inflorescences 0.5–2.5 cm; tepals 2–2.5 mm. | Tofieldia coccinea |
| 2 | Stems 25–90 cm; inflorescences 3–25 cm; tepals 3–4.5 mm. | Tofieldia glabra |