Arethusa bulbosa

Linnaeus

Sp. Pl. 2: 950. 1753.

IllustratedEndemic
Treatment appears in FNA Volume 26. Treatment on page 597. Mentioned on page 594.

Plants 2–40 cm. Leaves: blade 5–23 cm × 3–12 mm. Inflorescences: floral bracts 2, inconspicuous. Flowers pink to magenta, rarely white or bluish, gaping, large; sepals erect, narrowly oblanceolate to narrowly oblong, 20–55 × 3–9 mm; petals arcuate, 23–49 × 4–10 mm; lip obovate to oblong, arcuate to reflexed near middle, often obscurely 3-lobed, 19–35 ×10–19 mm; disc with crest of yellow lamellae and fleshy processes. Capsules erect, ovoid to ellipsoid, 15–25 mm. 2n = 40.


Phenology: Flowering Jun–Jul.
Habitat: Sphagnum bogs, coniferous swamps, calcareous treed to open fens, and moist, acid, sandy meadows
Elevation: 0–1100 m

Distribution

V26 1219-distribution-map.jpg

Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Sask., Conn., Del., Ind., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., W.Va., Wis.

Discussion

The occurrence of Arethusa bulbosa in Cook County, Illinois (F. Swink and G. S. Wilhelm 1994), and in Maryland are unconfirmed.

Selected References

None.

Lower Taxa

None.
... more about "Arethusa bulbosa"
self-pollination +
Charles J. Sheviak +  and Paul M. Catling +
Linnaeus +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
5 cm50 mm <br />0.05 m <br /> (23 cm230 mm <br />0.23 m <br />) +
flattened +, triangular +  and cylindric +
3mm;12mm +
ovoid +  and ellipsoid +
1.5 cm15 mm <br />0.015 m <br /> (?) +  and 2.5 cm25 mm <br />0.025 m <br /> (?) +
Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Conn. +, Del. +, Ind. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, W.Va. +  and Wis. +
0–1100 m +
pink +  and magenta rarely white or bluish +
erect +  and resupinate +
Sphagnum bogs, coniferous swamps, calcareous treed to open fens, and moist, acid, sandy meadows +
lateral +  and terminal +
petiolate +, sessile +  and simple +
duplicate +, convolute +, whorled +, opposite +, distichous +  and alternate +
cauline +  and basal +
reduced +
1.9 cm19 mm <br />0.019 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
3-lobed +, obovate +  and oblong +
larger +
1 cm10 mm <br />0.01 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
differing in form and color +
1-many-flowered +  and cymose +
pendent +  and erect +
2.3 cm23 mm <br />0.023 m <br /> (4.9 cm49 mm <br />0.049 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering Jun–Jul. +
aerial +  and subterranean +
slender +
minute +
free +, distinct +, adnate +  and connate +
narrowly oblanceolate +  and narrowly oblong +
foliaceous +
not +  and alike +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Illustrated +  and Endemic +
pendent +  and erect +
proliferous +
thickened +  and stout +
concave +  and convex +
Arethusa bulbosa +
Arethusa +
species +
aquatic +, lithophytic +, terrestrial +  and epiphytic +
saprophytic +, photosynthetic +  and mycotrophic +