Show Lower Taxa
Difference between revisions of "Linum sect. Linum"
Treatment appears in FNA Volume 12. Treatment on page 373.
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name=Linum sect. Linum | name=Linum sect. Linum | ||
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|rank=section | |rank=section | ||
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|family=Linaceae | |family=Linaceae | ||
|distribution=North America;Mexico;Eurasia;n Africa;Pacific Islands (New Zealand);Australia;introduced in s South America. | |distribution=North America;Mexico;Eurasia;n Africa;Pacific Islands (New Zealand);Australia;introduced in s South America. | ||
| − | |reference= | + | |reference=None |
|publication title= | |publication title= | ||
|publication year= | |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/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V12/V12_135.xml |
|genus=Linum | |genus=Linum | ||
|section=Linum sect. Linum | |section=Linum sect. Linum | ||
Revision as of 18:55, 16 December 2019
Herbs, annual, biennial, or perennial. Stems usually terete (ridged in L. grandiflorum). Leaves alternate; stipular glands absent; blade margins entire, not glandular-toothed. Flowers homostylous or heterostylous; sepals persistent, margins scarious, entire, not glandular-toothed; petals usually blue or red to maroon, rarely white; staminodia present or absent; styles distinct, connate basally or to midlength; stigmas capitate, clavate, or linear. Capsules dehiscing into 10, 1-seeded segments; false septa incomplete. Pollen tricolpate.
Distribution
North America, Mexico, Eurasia, n Africa, Pacific Islands (New Zealand), Australia, introduced in s South America.
Discussion
Species ca. 50 (6 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Petals bright red to maroon, fading to purple. | Linum grandiflorum |
| 1 | Petals usually blue, rarely white. | > 2 |
| 2 | Stigmas linear or clavate; margins of inner sepals minutely ciliate. | > 3 |
| 3 | Annuals; petals 10–15 mm; capsules 6–10 mm, apices rounded; seeds 4–6 mm. | Linum usitatissimum |
| 3 | Biennials or short-lived perennials; petals 6–10 mm; capsules 4–6 mm, apices very sharp-pointed; seeds 2.5–3 mm. | Linum bienne |
| 2 | Stigmas capitate or ellipsoid-capitate, margins of inner sepals glabrous. | > 4 |
| 4 | Flowers heterostylous. | Linum perenne |
| 4 | Flowers homostylous. | > 5 |
| 5 | Perennials; styles 2–12 mm, capsule apices acute. | Linum lewisii |
| 5 | Annuals; styles 1–3 mm; capsule apices obtuse. | Linum pratense |