Cuscuta salina |
Cuscuta warneri |
|
---|---|---|
goldenthread, inland salt-marsh dodder, salt dodder, saltmarsh dodder |
Warner's dodder |
|
Stems | orange-yellow, slender. |
yellow, filiform. |
Inflorescences | loose to dense, corymbiform; bracts at base of clusters 1, at base of pedicels 0 or 1, ovate-lanceolate to lanceolate, membranous, margins entire, apex acute. |
dense, glomerulate or corymbiform; bracts at base of clusters 1, at base of pedicels 0(or 1), ovate, membranous, margins entire, apex acute. |
Pedicels | (0.5–)1–5 mm. |
0.5–1 mm, papillate. |
Flowers | 5-merous, 2.5–4.5 mm, membranous, not papillate or corolla lobes papillate; calyx yellow, cylindric to narrowly campanulate, equaling corolla tube length, divided 1/2 its length, not reticulate, ± glossy, lobes lance-ovate to lanceolate, bases not overlapping, margins entire, midvein not carinate, apex acute to acuminate; corolla white, drying creamy white, 2.2–4 mm, tube cylindric-campanulate to obconic, 1.2–2 mm, not saccate, lobes spreading to reflexed, lance-oblong to lance-ovate, equaling corolla tube length, margins entire or irregular, apex acute to acuminate or cuspidate, sometimes appearing tridentate, straight; infrastaminal scales oblong to obovate, 1–1.7 mm, 4/5 corolla tube length, bridged at 0.2–0.4 mm, rounded, uniformly densely fimbriate, fimbriae 0.1–0.3 mm; stamens exserted at full anthesis, shorter than corolla lobes; filaments 0.3–0.7 mm; anthers 0.3–0.7 × 0.2–0.5 mm; styles uniformly filiform, 0.4–0.9 mm, shorter than ovary. |
5-merous, 2.1–4 mm, slightly fleshy, perianth cells convex, domelike, papillate on corolla, ovary, and capsule; calyx brownish yellow, campanulate-cupulate, 1/2 corolla tube length, divided 1/2 its length, not reticulate, not shiny, lobes triangular-ovate, bases not overlapping, margins entire, midvein carinate, sometimes with multicellular projections, apex enlarged, each with a hornlike appendage 0.5–0.7 mm; corolla creamy white, drying brownish, 1.8–3.5 mm, tube campanulate-urceolate, 1.5–2.5 mm, not saccate, lobes erect, connivent, triangular-ovate, 1/4–1/3 corolla tube length, margins entire, apex acute, inflexed; infrastaminal scales relatively poorly developed, oblong, 1.3–1.2 mm, 4/5 corolla tube length, bridged at 0.2–0.3 mm, truncate, irregularly dentate or short-fimbriate distally, fimbriae 0.05–0.1 mm; stamens included, shorter than corolla lobes; filaments 0.4–0.5 mm; anthers 0.4–0.7 × 0.3–0.5 mm; styles filiform, 0.2–0.4 mm, shorter than ovary. |
Capsules | ellipsoid-ovoid, 1.6–2.5 × 1.7–2.4 mm, thickened and raised around relatively small interstylar aperture, not translucent, surrounded or capped by withered corolla, indehiscent. |
globose, 1.8–2.5 × 1.9–3 mm, thickened and raised in collar around style base, translucent, surrounded or capped by withered corolla, indehiscent. |
Seeds | 1, ± obcompressed, broadly ellipsoid to subglobose, 1.3–1.5 × 1.2–1.4 mm, hilum region subterminal. |
3 or 4, shape heterogeneous on same plant: obcompressed to weakly angled, broadly ellipsoid to transversely oblique, 1.3–1.6 × 1.2–1.4 mm, hilum region subterminal. |
2n | = 30. |
|
Cuscuta salina |
Cuscuta warneri |
|
Phenology | Flowering Mar–Nov. | Flowering Jun–Sep. |
Habitat | Hosts: Atriplex, Centromadia, Cressa, Frankenia, Jaumea, Plantago, Salicornia, Salsola, Suaeda, Trichostema, Wislizenia. | Hosts: known only from Phyla cuneata and P. incisa. |
Elevation | 0–1000 m. (0–3300 ft.) | 1500–1700 m. (4900–5600 ft.) |
Distribution |
AZ; CA; NV; UT; Mexico (Baja California, Baja California Sur, Sonora)
|
NM; UT |
Discussion | Cuscuta warneri is currently considered possibly extinct in Utah by NatureServe (http://explorer.natureserve.org); it was rediscovered in Roosevelt County, New Mexico, in 2008. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Cuscuta > subg. Grammica | Convolvulaceae > Cuscuta > subg. Grammica |
Sibling taxa | ||
Name authority | Engelmann in W. H. Brewer et al.: Bot. California 1: 536. (1876) | Yuncker: Brittonia 12: 38, fig. 1. (1960) |
Web links |