Aplectrum hyemale

(Muhlenburg ex Willdenow) Torrey

Gen. N. Amer. Pl. 2: 198. 1818.

IllustratedEndemic
Basionym: Cymbidium hyemale Muhlenburg ex Willdenow Sp. Pl. 4(1): 107. 1805
Treatment appears in FNA Volume 26. Treatment on page 632. Mentioned on page 628.

Plants 18–50 cm. Leaves persistent, petiolate; blade narrowly to broadly elliptic, prominently and irregularly plicate, 10–20 × 3–8 cm, abaxially usually maroon or greenish purple, adaxially dark green with whitish veins. Inflorescences: floral bracts inconspicuous, 3–7 × 1.5 mm, apex subulate to acuminate. Flowers prominent but inconspicuously colored; sepals spreading, greenish or yellowish suffused with magenta or purple-brown, oblong-oblanceolate to narrowly elliptic, 10–15 × 1.8–4 mm; petals parallel to column, greenish or yellowish, suffused with magenta or purple-brown, oblong-oblanceolate, 9–13 × 1.8–3.5 mm; lip white with magenta spots, obovate in outline, 9–12 × 7–9 mm, apex 3-lobed, lateral lobes ascending and flanking column, middle lobe broadly expanded, crenate; column 7 × 2 mm. Capsules ellipsoid, strongly ribbed, 15–30 × 7–12 mm.


Phenology: Flowering late spring.
Habitat: Moist, deciduous, upland to swampy forests
Elevation: 0–1200 m

Distribution

V26 1296-distribution-map.jpg

Ont., Que., Ala., Ark., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., Md., Mass., Mich., Minn., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., Tenn., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Aplectrum hyemale"
self-pollination +
Charles J. Sheviak +  and Paul M. Catling +
(Muhlenburg ex Willdenow) Torrey +
Cymbidium hyemale +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
dark green;greenish purple;maroon +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
flattened +, triangular +  and cylindric +
3cm;8cm +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
ellipsoid +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
compressed +
expanded +
connected +
Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–1200 m +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3-merous +, sessile +  and pedicellate +
7 cm70 mm <br />0.07 m <br /> (?) +
Moist, deciduous, upland to swampy forests +
lateral +  and terminal +
duplicate +, convolute +, whorled +, opposite +, distichous +  and alternate +
persistent +
cauline +  and basal +
reduced +
crenate +
larger +
differing in form and color +
1-many-flowered +  and cymose +
pendent +  and erect +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Flowering late spring. +
Gen. N. Amer. Pl. +
aerial +  and subterranean +
slender +
minute +
, +, yellowish suffused with magenta or yellowish suffused with purple-brown +  and greenish +
free +, distinct +, adnate +  and connate +
oblong-oblanceolate +  and narrowly elliptic +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
foliaceous +
not +  and alike +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Illustrated +  and Endemic +
branched +, or +  and simple +
pendent +  and erect +
proliferous +
thickened +  and stout +
Aplectrum hyemale +
Aplectrum +
species +
aquatic +, lithophytic +, terrestrial +  and epiphytic +
saprophytic +, photosynthetic +  and mycotrophic +