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Krameriaceae

Krameriaceae
Krameriaceae image
Cecelia Alexander
  • VPAP
  • Resources
JANAS 32(1)
PLANT: Shrubs and perennial herbs, hemiparisitic at least in AZ, vestiture variable, usually very dense on new growth. LEAVES: alternate, exstipulate, simple (in ours) or trifoliolate, sessile, linear to linear-lanceolate (in ours), the margins entire; apices acute or mucronate. INFLORESCENCE: uniflorous in leaf axils, terminal racemes or open panicles. FLOWERS: zygomorphic, perfect; peduncles and pedicels separated from each other by a pair of opposite, linear or lanceolate, leaf-like bractlets; sepals 4-5, of different lengths, showy, lanceolate to ovate, acute, imbricate, variably vestitured on the outer surfaces; petals 4 or 5, small, not showy, dimorphic; upper 3(2) petals petaloid, clawed or lanceolate, clustered at the base of the upper side of the ovary forming a “flag,” either free or connate basally; lower 2 petals smaller, fleshy, sessile, and dorsally modified into oil-secreting glands called elaiophores; stamens 3 or 4, the filaments stout, inserted at the junction of the upper petals and the ovary or on the connate portion of the petaloid petals, the anthers conical, the base slightly larger in diameter than the filaments, dehiscing by terminal, membranous pores; ovary superior, ovoid, densely pubescent, 1-loculed at maturity; style stout, about the same length as the ovary, glabrous (in ours); stigma minute; ovules 2, apical. FRUIT: a 1-seeded hard capsule, bladder-like when seeds abortive or fruit immature, bearing spines (rarely spineless) usually with retrorse barbs or glochids along the terminal end of the spines. SEEDS: globose, gray-brown, smooth, lacking endosperm. n = 6 (in ours). NOTES: A monogeneric family, 18 spp., s US to n Argentina and n Chile, primarily neotropical in open arid or seasonally dry habitats. REFERENCES: Simpson, Beryl B. Andrew Salywon. 1999. Krameriaceae. Ariz. - Nev. Acad. Sci. 32(1).
Species within checklist: NAU-Yuma BSC 414
Krameria argentea
Media resource of Krameria argentea
Krameria bicolor
Media resource of Krameria bicolor
Krameria canescens
Media resource of Krameria canescens
Krameria cistoidea
Media resource of Krameria cistoidea
Krameria cuspidata
Media resource of Krameria cuspidata
Krameria cytisoides
Media resource of Krameria cytisoides
Krameria erecta
Media resource of Krameria erecta
Krameria grandiflora
Media resource of Krameria grandiflora
Krameria interior
Media resource of Krameria interior
Krameria ixine
Media resource of Krameria ixine
Krameria lanceolata
Media resource of Krameria lanceolata
Krameria lappacea
Media resource of Krameria lappacea
Krameria parviflora
Media resource of Krameria parviflora
Krameria pauciflora
Media resource of Krameria pauciflora
Krameria paucifolia
Media resource of Krameria paucifolia
Krameria prostrata
Media resource of Krameria prostrata
Krameria ramosissima
Media resource of Krameria ramosissima
Krameria revoluta
Media resource of Krameria revoluta
Krameria secundiflora
Media resource of Krameria secundiflora
Krameria sonorae
Media resource of Krameria sonorae
Krameria tomentosa
Media resource of Krameria tomentosa
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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