Calypso bulbosa

(Linnaeus) Oakes

in Z. Thompson, Nat. Hist. Vermont 1: 200. 1842.

Illustrated
Basionym: Cypripedium bulbosum Linnaeus Sp. Pl. 2: 951. 1753
Synonyms: Cytherea bulbosa (Linnaeus) House
Treatment appears in FNA Volume 26. Treatment on page 623.

Plants 4.5–22 cm. Leaves: blade elliptic to suborbiculate or ovate, often cordate, 10–65 × 12–52 mm. Inflorescences: floral bracts lance-acuminate, 5–28 mm. Flowers pink, magenta, or rarely white; sepals and petals erect-spreading, linearlanceolate to linear-oblong, 10–24 × 1.5–5 mm; lip 13–23 × 4–13 mm, lamina shorter than to longer than apical horns, basal bristles sparse to extensive, brightly and contrastingly colored to dull and obscure. Capsules erect, ellipsoid to lanceoloid, 2–3 × 1–1.5 cm. 2n = 28 [var. bulbosa].

Distribution

V26 1273-distribution-map.jpg

Circumpolar, North America, Europe, Asia (China), Asia (Japan), Asia (Russia)

Discussion

Varieties 3 (2 in the flora).

Selected References

None.

Key

1 Bristles of lip yellow, extensive; lamina white or suffused with pink, usually equaling or longer than horns. Calypso bulbosa var. americana
1 Bristles of lip whitish or color of lamina, sparse; lamina commonly with reddish markings on dull white, usually shorter than horns. Calypso bulbosa var. occidentalis
... more about "Calypso bulbosa"
self-pollination +
Charles J. Sheviak +  and Paul M. Catling +
(Linnaeus) Oakes +
Cypripedium bulbosum +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
1 cm10 mm <br />0.01 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
cordate +, elliptic +  and suborbiculate or ovate +
12mm;52mm +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
ellipsoid +  and lanceoloid +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Circumpolar +, North America +, Europe +, Asia (China) +, Asia (Japan) +  and Asia (Russia) +
0.5 cm5 mm <br />0.005 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
3-merous +, sessile +  and pedicellate +
white +, magenta +  and pink +
horizontal +  and slightly nodding +
lateral +  and terminal +
apronlike +
petiolate +, sessile +  and simple +
duplicate +, convolute +, whorled +, opposite +, distichous +  and alternate +
cauline +  and basal +
reduced +
leathery +
1.3 cm13 mm <br />0.013 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
slipper--shaped +
larger +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
differing in form and color +
1-many-flowered +  and cymose +
pendent +  and erect +
1 cm10 mm <br />0.01 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
erect-spreading +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
in Z. Thompson, Nat. Hist. Vermont +
aerial +  and subterranean +
slender +
minute +
free +, distinct +, adnate +  and connate +
erect-spreading +
linear-oblong +
foliaceous +
not +  and alike +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Illustrated +
pendent +  and erect +
proliferous +
thickened +  and stout +
Cytherea bulbosa +
Calypso bulbosa +
species +
quadrangular +
aquatic +, lithophytic +, terrestrial +  and epiphytic +
saprophytic +, photosynthetic +  and mycotrophic +