Callitriche brutia var. hamulata
Watsonia 26: 113. 2006.
Common names: Narrowleaf water-starwort
Basionym: Callitriche hamulata Kützing e× W. D. J. Koch Syn. Fl. Germ. Helv., 246. 1837
Synonyms: C. intermedia Hoffmann C. intermedia subsp. hamulata (Kützing e× W. D. J. Koch) A. R. Clapham
Leaves connate at base, ± linear, tapering strongly from near base or spatulate, 5.4–18 × 0.3–3 mm, 1+-veined. Stem and leaf scales present. Inflorescences: bracts caducous. Pedicels 0 mm, rarely less than 2 mm in fruit. Flowers usually solitary; styles reflexed, appressed to ovary; pollen colorless. Schizocarps 1.1–1.5 (–1.6) × 1.1–1.4 mm, as long as wide; mericarps blackish, not swollen, winged throughout, wings straight, 0.03–0.3 mm wide. 2n = 38.
Phenology: Flowering Jul–Sep.
Habitat: Fast-flowing streams, backwaters, lakes, pools.
Elevation: 0–1600 m.
Distribution
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Greenland, B.C., Oreg., Wash., Europe
Discussion
Variety hamulata is considered native in Greenland and is introduced in other parts of the flora area; the earliest specimen of var. hamulata known from western North America is from Oregon in 1956 (Steward 7238, MO).
Selected References
None.
Lower Taxa
None.
... more about "Callitriche brutia var. hamulata"
hypogynous +
simple +
caducous +
absent +
absent +
symmetric +
Narrowleaf water-starwort +
symmetric +
drupe-like +
absent +
glabrous +
abaxial +
unisexual +
separating +
pistillate +
axillary +
1+-veined +
connate +
cauline +
absent +
notched +
winged +
blackish +
not swollen +
basal +
superior +
spiciform +
absent +
hypogynous +
connate +
absent +
absent +
2-carpellate +
colorless +
Watsonia +
2006 +
absent +
1.1mm;1.4mm +
1;300 +
absent +
absent +
equal +
reclining;pendent;spreading;arching;erect;ascending;erect;ascending;decumbent +
absent +
simple +
terete +
absent +
appressed +
reflexed +
Callitriche brutia var. hamulata +
Callitriche brutia +
variety +
perennial +
submersed +
autotrophic +
fleshy +
partial +
straight +
absent +
0.03mm;0.3mm +