Callitriche trochlearis

Fassett

Rhodora 53: 194. 1951.

Common names: Effluent water-starwort
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 54. Mentioned on page 50.

Leaves connate at base, ± parallel-sided, 5.2–9.1 × 0.1–0.9 mm, 1+-veined. Stem and leaf scales present. Inflorescences: bracts persistent. Pedicels 0–0.5 mm in fruit. Flowers usually 1 staminate and 1 pistillate in each axil; styles spreading; pollen yellow. Schizocarps 1–1.2 × 1.1–1.3 mm, ± as long as wide; mericarps black, not swollen, evenly winged throughout, wings straight, 0.05–0.1 mm wide. 2n = 40.


Phenology: Flowering Apr–Jul.
Habitat: Vernal and perennial pools, ditches.
Elevation: 0–2000 m.

Discussion

Callitriche trochlearis occurs in northwestern and central-western California plus western Oregon.

Selected References

None.

Lower Taxa

None.
... more about "Callitriche trochlearis"
Richard V. Lansdown +
Fassett +
alternate +, opposite +, whorled +, helical +  and subopposite +
not leathery +  and not fleshy +
persistent +
Effluent water-starwort +
ligulate +, unilabiate +, regular +, personate +  and bilabiate +
ovoid +, globular +, ellipsoid +, urceolate +, tubular +, cylindric +, less rotate +  and salverform +
Calif. +  and Oreg. +
drupe-like +
0–2000 m. +
curved +  and straight +
pistillate +  and staminate +
poricidal +, septicidal +, loculicidal +  and dehiscence +
Vernal and perennial pools, ditches. +
1+-veined +  and parallel-sided +
decussate +  and opposite +
persistent +  and deciduous +
connate +
0.52 cm5.2 mm <br />0.0052 m <br /> (0.91 cm9.1 mm <br />0.0091 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
not swollen +
axile +  and parietal +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
5 +  and 4 +
Flowering Apr–Jul. +
minute +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
1.1mm;1.3mm +
red +, maroon +, black +, gray +, yellow +, brown +, tan +  and white +
ovoid +  and ellipsoid cylindric globular oblong conic disciform patelliform or angled +
distinct +  and connate +
5 +  and 4 +
Endemic +  and Conservation concern +
adnate +  and free +
climbing +  and scrambling +
supported by water , glabrous or bearing scales +  and creeping +
reclining;pendent;spreading;arching;erect;ascending;erect;ascending;decumbent +
Callitriche trochlearis +
Callitriche +
species +
terrestrial +  and amphibious +
straight +
0.05mm;0.1mm +