Difference between revisions of "Mandevilla hypoleuca"
Bull. Mus. Natl. Hist. Nat., sér. 2, 20: 106. 1948.
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|genus=Mandevilla | |genus=Mandevilla | ||
|species=Mandevilla hypoleuca | |species=Mandevilla hypoleuca | ||
Latest revision as of 13:16, 24 November 2024
Suffrutescent perennials, 1.7–7.5 dm; rhizomes present. Stems densely eglandular-pubescent, especially on younger growth. Leaves opposite, subopposite, or subverticillate; petiole 1–4 mm, pubescent; blade linear to oblong-elliptic or oblong-ovate, 25–50(–70) × (4–)8–17(–21) mm, subcoriaceous, base subcordate or rounded, margins revolute or not, apex acute or rounded, apiculate, surfaces densely white eglandular-pubescent abaxially, eglandular-pubescent adaxially. Cymes 1 or 2(or 3)-flowered. Peduncles (5–)10–22(–36) mm, pubescent. Pedicels 7–15 mm, pubescent. Flowers: sepals reddish, oblong-linear, 7–10(–12) × 1.2–2 mm, pubescent; corolla white, often tinged with pink or red, eglandular-pubescent abaxially and adaxially, tube (8–)15–35 × 2.5–3 mm, throat (13–)17–25(–30) × 7–9 mm, lobes spreading, obliquely ovate, 15–30 × 14–28 mm. Follicles (80–)100–150 × 3–5 mm, pubescent. Seeds 6–8 × 1.5–2 mm.
Phenology: Flowering summer–fall; fruiting summer–fall.
Habitat: Pine-oak woodlands, desert grassland ecotones, mostly on soils derived from igneous rock.
Elevation: 1000–1800 m.
Discussion
Mandevilla hypoleuca has been reported from the Chinati, Chisos, and Davis mountains of western Texas but has not been well collected; most specimens date from the 1940s or earlier. The current status of the species in the flora area is uncertain, although it is widespread in northern and central Mexico.
Selected References
None.