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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Annual, perennial herb [shrub, tree, vine]. Stem: generally erect [climbing], branched, glabrous to hairy. Leaf: cauline, alternate to opposite or whorled, simple, generally sessile, linear to obovate, entire to minutely toothed or ciliate, teeth occasionally gland-tipped; stipules small, dark-colored, spheric glands, or 0. Inflorescence: raceme, panicle, or cyme [spike]. Flower: bisexual, radial; sepals 5, free; petals = sepals in number, free to adherent; stamens 5[4 or 10], alternate petals, filaments fused basally into a cup-like structure surrounding ovary base; staminodes present, alt stamens at cup rim, or 0; ovary superior, carpels 2–5, fused, styles 2–5, = carpel number, free or partly fused. Fruit: capsule, generally dehiscent [drupe in some tropical species], generally 10-seeded.
13 genera, ± 250 species: cosmopolitan, most temperate, some cultivated. [McDill et al. 2009 Syst Bot 34:386–405] Hesperolinon, Sclerolinon are evolutionary lineages within Linum. —Scientific Editors: Douglas H. Goldman, Robert Patterson, Bruce G. Baldwin.
Unabridged references: [Robertson 1971 J Arnold Arbor 52:649–665]
Key to Linaceae
Annual, perennial herb. Leaf: generally alternate, occasionally partially opposite [whorled], ± sessile, generally glabrous; stipule glands present or 0. Inflorescence: raceme or cyme. Flower: inner 2 sepals overlapped by outer 3, all margins generally translucent, generally ciliate or toothed, glandular or not; petals 5–25 mm, generally ephemeral; staminodes 0 or 5; carpels 5, ovary chambers 10, styles free or fused, stigmas 5, >= style width. Fruit: 3–10 mm diam, generally spheric, dehiscent, generally 5 or 10 segmented. Seed: 5 or 10, lens-shaped, rounded, brown to black, generally glossy.Key to Linum
± 180 species: temperate & subtropics, especially Eurasia and North America. (Latin: flax) [Rogers 1984 North Amer Flora Ser II 12:1–56] Linum usitatissimum cultivated for fiber (linen) and seed for oil and food; Linum perenne, Linum grandiflorum, ornamental; some Eurasian species used in cancer treatment.
Previous taxon: Hesperolinon tehamense
Next taxon: Linum bienne
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 4 2015
Citation for this treatment: [Author of taxon treatment] 2013. Linum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=8860, accessed on Jul 4 2015
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