Lewisia leeana |
Lewisia maguirei |
|
---|---|---|
many flower lewisia, quill-leaf lewisia |
Maguire's lewisia |
|
Taproots | gradually ramified distally. |
gradually ramified distally. |
Stems | spreading or suberect, 8–20 cm. |
spreading to suberect, 1.5–2 cm. |
Leaves | basal leaves evergreen, sessile, blade linear, ± terete, 1.5–6 cm, margins entire, apex obtuse; cauline leaves alternate, intergrading with bracts, blade narrowly lanceolate, 5 mm, margins entire, apex acute. |
basal leaves withering at or soon after anthesis, sessile, blade narrowly oblanceolate, somewhat flattened, 1–2 cm, margins entire, apex obtuse; cauline leaves absent. |
Inflorescences | paniculate cymes, 50–70(–100)-flowered; bracts several, alternate proximally, 2 at each flowering node distally, ovate to narrowly lanceolate, 2–5 mm, margins glandular-toothed, apex acute. |
racemose cymes, 2–3-flowered, sometimes with flowers borne singly; bracts 5, proximalmost 3 in whorl, distalmost 2 opposite, subtending 2d (and 3d) flowers, oblong to oblong-obovate, 3–5 mm, apex obtuse. |
Flowers | pedicellate, not disarticulate in fruit; sepals 2, suborbiculate, 1–4 mm, herbaceous at anthesis, margins glandular-toothed, apex truncate; petals 5–8, magenta, lavender, or white with or without magenta veins, obovate, 5–7 mm; stamens 4–8; stigmas 2; pedicel 3–15 mm. |
pedicellate, disarticulate in fruit; sepals 3–4, white to pinkish, 8–12 mm, scarious at anthesis, margins entire, apex obtuse; petals 7–9, white to pinkish, oblanceloate, 8–12 mm; stamens 7–9; stigmas 4–6; pedicel 3–9 mm. |
Capsules | 4–5 mm. |
7–10 mm. |
Seeds | 1–2, 2–2.5 mm, shiny, smooth. |
5–10, 1.5–2.5 mm, smooth. |
2n | = 14. |
|
Lewisia leeana |
Lewisia maguirei |
|
Phenology | Flowering summer. | Flowering summer. |
Habitat | Open north- or northwest-facing granitic or serpentine slopes or cliffs | Open, south-facing slopes on gravelly clay limestone-derived substrates |
Elevation | 1300-3400 m (4300-11200 ft) | 2200 m (7200 ft) |
Distribution |
CA; OR
|
NV |
Discussion | Lewisia leeana is known only from northwestern California and southwesternmost Oregon, and a disjunct population in Fresno County, California. As discussed by B. Mathew (1989b), Lewisia ×whiteae Purdy (California) is a natural, constantly recurring hybrid between L. leeana and L. cotyledon. In their narrowly spatulate leaves, the hybrids resemble L. columbiana out of range (cf. L. T. Dempster 1993); the flowers are reportedly more deeply colored. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Lewisia maguirei is known only from the Quinn Canyon Range, Nye County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 481. | FNA vol. 4, p. 482. |
Parent taxa | Portulacaceae > Lewisia | Portulacaceae > Lewisia |
Sibling taxa | ||
Synonyms | Calandrinia leeana, L. eastwoodiana, Oreobroma leeanum | |
Name authority | (Porter) B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1: 269. (1897) | A. H. Holmgren: Leafl. W. Bot. 7: 136. (1954) |
Web links |