Difference between revisions of "Asteraceae (tribe Heliantheae) subtribe Jaumeinae"
Gen. Pl. 2: 199. 1873.
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|subtribe=Asteraceae (tribe Heliantheae) subtribe Jaumeinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Jaumeinae | ||
Latest revision as of 21:13, 5 November 2020
Perennials, 5–30 cm (often ± succulent). Leaves mostly cauline; opposite; sessile; blades mostly linear, margins entire, faces glabrous. Heads radiate [discoid], borne singly. Calyculi 0. Invo-lucres cylindric to obconic. Phyllaries persistent, 12–15 in 3+ series (distinct, ovate to lanceolate, unequal, succulent to membranous). Receptacles convex to conic, epaleate. Ray florets [0] 3–10, pistillate, fertile; corollas yellow. Disc florets 20–50+, bisexual, fertile; corollas yellow, tubes about equaling narrowly cylindric throats, lobes 5, deltate; anther thecae pale; stigmatic papillae in 2 lines (joining near tips of branches). Cypselae obconic to clavate or columnar, often 10-ribbed, glabrous; pappi usually 0, sometimes persistent, of 1–5 subulate scales.
Distribution
w North America, Mexico, South America.
Discussion
Genus 1, species 2 (1 species in the flora).
Some species formerly included in Jaumea are now included in Espejoa or Hypericophyllum (in Chaenactidinae). H. Robinson (1981) allied Jaumeinae with Clappiinae and Flaveriinae.
Selected References
None.