Corallorhiza maculata var. occidentalis

(Lindley) Ames

Enum. Orchids U.S. & Canada, 22. 1924.

IllustratedEndemic
Basionym: Corallorhiza multiflora var. occidentalis Lindley Gen. Sp. Orchid. Pl., 534. 1840
Synonyms: Corallorhiza grab-hamii Cockerell Corallorhiza leimbachiana Suksdorf Corallorhiza maculata subsp. occidentalis (Lindley) Cockerell Corallorhiza maculata var. fusca H. H. Bartlett Corallorhiza maculata var. immaculata M. Peck Corallorhiza maculata var. intermedia Farwell Corallorhiza maculata var. punicea Bartlett Corallorhiza multiflora var. flavida Peck
Treatment appears in FNA Volume 26.

Inflorescences: floral bracts averaging 1–2.8 mm, often forked. Flowers: middle lobe of lip distinctly expanded, ratio of width of dilated part to base of middle lobe greater than than 1.5; column curved, 3.5–7.8 × 1–1.3 mm at stigma; stigmatic surface oblong-pentagonal, 0.8 × 1.3 mm.


Phenology: Flowering Apr–Jul.
Habitat: Coniferous and mixed woods, and conifer plantations
Elevation: 0–3700 m

Distribution

V26 1309-distribution-map.jpg

St. Pierre and Miquelon (variety unconfirmed), Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Sask., Ariz., Calif., Colo., Conn., Idaho, Ill., Maine, Mass., Mich., Minn., Mont., Nebr., Nev., N.H., N.Mex., N.Y., Oreg., Pa., S.Dak., Utah, Vt., Va., Wash., Wis., Wyo.

Discussion

Where they occur together, Corallorhiza maculata var. occidentalis typically flowers 2–4 weeks earlier than C. maculata var. maculata.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

self-pollination +
Lawrence K. Magrath +  and John V. Freudenstein +
(Lindley) Ames +
not bulbous +
Corallorhiza multiflora var. occidentalis +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
flattened +, triangular +  and cylindric +
tubular +
reduced +
0.9 cm9 mm <br />0.009 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
ellipsoid +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
spotted with purple +  and whitish yellow +
3.5mm +  and 7.8mm +
3.3mm +  and 7.8mm +
1mm +  and 1.3mm +
St. Pierre and Miquelon (variety unconfirmed) +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Ariz. +, Calif. +, Colo. +, Conn. +, Idaho +, Ill. +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, Nebr. +, Nev. +, N.H. +, N.Mex. +, N.Y. +, Oreg. +, Pa. +, S.Dak. +, Utah +, Vt. +, Va. +, Wash. +, Wis. +  and Wyo. +
0–3700 m +
3-merous +, sessile +  and pedicellate +
not +  and resupinate +
conspicuous +
ellipsoid;slightly obovoid +
Coniferous and mixed woods, and conifer plantations +
lateral +  and terminal +
petiolate +, sessile +  and simple +
duplicate +, convolute +, whorled +, opposite +, distichous +  and alternate +
cauline +  and basal +
reduced +
spotted with purple +  and white +
obovate +  and elliptic +
larger +
differing in form and color +
ellipsoid-obovoid +
0.5 cm5 mm <br />0.005 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
1-many-flowered +  and cymose +
pendent +  and erect +
0.45 cm4.5 mm <br />0.0045 m <br /> (?) +  and 1.15 cm11.5 mm <br />0.0115 m <br /> (?) +
Flowering Apr–Jul. +
Enum. Orchids U.S. & Canada, +
10cm +  and 65cm +
1.5cm;6.5cm +
coralloid +
aerial +  and subterranean +
triangular +
cylindric-fusiform +
minute +
darker +, yellow +, red +, tan +  and brown +
free +, distinct +, adnate +  and connate +
spreading +  and directed +
lanceolate +
0.47 cm4.7 mm <br />0.0047 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
foliaceous +
not +  and alike +
Illustrated +  and Endemic +
branched +, or +  and simple +
brown +  and purple +
proliferous +
thickened +  and stout +
concave +  and convex +
0.8 cm8 mm <br />0.008 m <br /> (?) +
oblong-pentagonal +
1.3 cm13 mm <br />0.013 m <br /> (?) +
Corallorhiza grab-hamii +, Corallorhiza leimbachiana +, Corallorhiza maculata subsp. occidentalis +, Corallorhiza maculata var. fusca +, Corallorhiza maculata var. immaculata +, Corallorhiza maculata var. intermedia +, Corallorhiza maculata var. punicea +  and Corallorhiza multiflora var. flavida +
Corallorhiza maculata var. occidentalis +
Corallorhiza maculata +
variety +
leafless +  and rootless +
herb +, colonial +  and solitary +
aquatic +, lithophytic +, terrestrial +  and epiphytic +