Difference between revisions of "Myagrum"

Linnaeus

Sp. Pl. 2: 640. 1753.

,

Gen. Pl. ed. 5, 289. 1754.

Etymology: Greek muagron, name used by Dioscorides and Pliny for a species of mustard
Treatment appears in FNA Volume 7. Treatment on page 568. Mentioned on page 230, 239.
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_919.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V7/V7_919.xml
 
|tribe=Brassicaceae tribe Isatideae
 
|tribe=Brassicaceae tribe Isatideae
 
|genus=Myagrum
 
|genus=Myagrum

Revision as of 20:24, 24 September 2019

Annuals; not scapose; (glaucous), glabrous. Stems erect, branched distally. Leaves basal and cauline; petiolate or sessile; basal (soon withered), not rosulate, petiolate, blade margins pinnatifid, runcinate, sinuate, or dentate; cauline blade (base auriculate, sagittate, or amplexicaul), margins entire or denticulate. Racemes (corymbose, several-flowered), considerably elongated in fruit. Fruiting pedicels appressed to rachis, stout. Flowers: sepals oblong to ovate, lateral pair subsaccate basally; petals oblong to oblanceolate, (slightly longer than sepals), claw undifferentiated from blade, (apex obtuse); stamens tetradynamous; filaments not dilated basally; anthers oblong, (apex obtuse); nectar glands (4) lateral, and (2) median (sometimes obscurely confluent with lateral). Fruits silicles, sessile, obpyriform to clavate-obcordiform, (woody, broadest distal to middle), slightly angustiseptate; (seed-bearing locule basal, 1 (or 2)-seeded, distal 2 locules seedless); replum rounded; ovules 2 per ovary; style distinct, (flattened, triangular); stigma capitate. Seeds plump, not winged, oblong to ovoid; seed coat not mucilaginous when wetted; cotyledons incumbent. x = 7.

Distribution

s Europe, sw Asia, introduced also in Africa, Australia.

Discussion

Species 1.

Selected References

None.

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