familyPortulacaceae
genusTalinum
Show Lower Taxa
Difference between revisions of "Talinum"
Fam. Pl. 2: 245, 609. 1763.
Etymology: Apparently from an African vernacular name
Treatment appears in FNA Volume 4. Mentioned on page 458, 489, 490, 491.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>[or subshrubs], perennial, caulescent, glabrous. <b>Roots</b> tuberous, fleshy to woody. <b>Stems</b> erect, simple or branching, sometimes suffrutescent. <b>Leaves</b> alternate or subopposite, short-petiolate or subsessile, articulate at base, not clasping, attachment points round; blade broadly planate, 1–7 cm wide, succulent or semisucculent, margins entire. <b>Inflorescences</b> lateral and/or terminal, paniculate, racemose, or cymose, not appearing secund, few- to many-flowered; peduncle very short to elongate. <b>Flowers</b> pedicellate; sepals deciduous or persistent, distinct; petals fugacious, 5 or rarely more, distinct; stamens 15–35, distinct, anther 2-locular, oblong; gynoecium 3[–5]-carpellate, ovary superior, placentation free-central, style 1 [absent], stigma(s) 1 or 3[–5]. <b>Fruits</b> capsular, longitudinally and tardily dehiscent from apex, 3[–5]-valved; valves wholly or partly deciduous, erect; exocarp and endocarp distinctly differentiated, sometimes separating, then endocarp persistent. <b>Seeds</b> many, black, ± compressed, circular-reniform, ca. 1 mm, strophiolate; seed coat lustrous, minutely tuberculate or striolate, pellicle absent. <b>x</b> = 12.</span><!-- |
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Revision as of 13:56, 27 July 2019
Herbs [or subshrubs], perennial, caulescent, glabrous. Roots tuberous, fleshy to woody. Stems erect, simple or branching, sometimes suffrutescent. Leaves alternate or subopposite, short-petiolate or subsessile, articulate at base, not clasping, attachment points round; blade broadly planate, 1–7 cm wide, succulent or semisucculent, margins entire. Inflorescences lateral and/or terminal, paniculate, racemose, or cymose, not appearing secund, few- to many-flowered; peduncle very short to elongate. Flowers pedicellate; sepals deciduous or persistent, distinct; petals fugacious, 5 or rarely more, distinct; stamens 15–35, distinct, anther 2-locular, oblong; gynoecium 3[–5]-carpellate, ovary superior, placentation free-central, style 1 [absent], stigma(s) 1 or 3[–5]. Fruits capsular, longitudinally and tardily dehiscent from apex, 3[–5]-valved; valves wholly or partly deciduous, erect; exocarp and endocarp distinctly differentiated, sometimes separating, then endocarp persistent. Seeds many, black, ± compressed, circular-reniform, ca. 1 mm, strophiolate; seed coat lustrous, minutely tuberculate or striolate, pellicle absent. x = 12.
Distribution
North America, West Indies, Central America, South America, Africa, introduced elsewhere.
Discussion
Species ca. 15 (2 in the flora).
As circumscribed here, Talinum is a primarily Old World genus with only two species found in North America. Other North American species that usually have been included in Talinum are recognized here under Phemeranthus (which see for discussion).
Selected References
Lower Taxa
Key
| 1 | Inflorescences racemose or cymose; pedicels triquetrous, distinctly thicker distally; petals 7 mm or longer; stigma 1, 3-lobed | Talinum fruticosum |
| 1 | Inflorescences paniculate; pedicels terete, ± uniformly slender; petals 6 mm or shorter; stigmas 3, linear | Talinum paniculatum |