Corallorhiza maculata

(Rafinesque) Rafinesque

Amer. Monthly Mag. & Crit. Rev. 2: 119. 1817.

Common names: Spotted coral-root corallorhize maculée
Illustrated
Basionym: Cladorhiza maculata Rafinesque Amer. Monthly Mag. & Crit. Rev. 1: 429. 1817
Treatment appears in FNA Volume 26. Treatment on page 637. Mentioned on page 633, 634, 636, 638.

Stems ± strongly thickened, base not bulbous. Inflorescences: racemes dense to lax, 10–65 × 1.5–6.5 cm. Flowers 6–41, conspicuous; perianth open; sepals directed forward to somewhat spreading, brown, tan, red, or yellow, often darker distally, lanceolate, 3-veined, 4.7–15 mm; petals frequently curved toward column, nearly adhering to it, tan to yellowish, often red distally, usually spotted with purple, lanceolate to oblanceolate, 4.5–11.5 mm; lip white, usually spotted with purple, obovate to elliptic, thin, lateral lobes 2, rounded, middle lobe oblong to broadly dilated toward apex, with 2 distinct basal lamellae, 4–9 × 1.5–6 mm; column whitish yellow, spotted with purple, usually curved, 3.3–7.8 mm, basally with ridges or poorly developed auricles; ovary 5–14 mm; mentum obscure, adnate to edge of ovary. Capsules pendulous, ellipsoid, 9–24 × 5–9 mm. 2n = 42.

Distribution

V26 1307-distribution-map.jpg

North America, Mexico, Central America (Guatemala)

Discussion

several color forms exist in corallorhiza maculata, often occurring in proximity and sometimes forming large clumps. white-flowered southern plants have occasionally been misidentified as corallorhiza trifida. dance-flies (empis).have been reported as pollinators (j. l. kipping 1971)

Varieties 3 (2 in the flora).

Selected References

None.

Key

1 Middle lobe of lip expanded slightly or not at all distally, ratio of widths of dilated part to base of middle lobe less than 1.5; floral bracts averaging 0.5–1 mm. Corallorhiza maculata var. maculata
1 Middle lobe of lip distinctly expanded, ratio of widths of dilated part to base of middle lobe more than 1.5; floral bracts averaging 1–2.8 mm. Corallorhiza maculata var. occidentalis

"thin" is not a number.

... more about "Corallorhiza maculata"
self-pollination +
Lawrence K. Magrath +  and John V. Freudenstein +
(Rafinesque) Rafinesque +
not bulbous +
Cladorhiza maculata +
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 +
3.3mm +  and 7.8mm +
Spotted coral-root +  and corallorhize maculée +
North America +, Mexico +  and Central America (Guatemala) +
3-merous +, sessile +  and pedicellate +
not +  and resupinate +
conspicuous +
ellipsoid;slightly obovoid +
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 /> (?) +
Amer. Monthly Mag. & Crit. Rev. +
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 +
branched +, or +  and simple +
brown +  and purple +
proliferous +
thickened +  and stout +
concave +  and convex +
Cladorhiza +, Corallorhiza +  and Rhizocorallon +
Corallorhiza maculata +
Corallorhiza +
species +
leafless +  and rootless +
herb +, colonial +  and solitary +
aquatic +, lithophytic +, terrestrial +  and epiphytic +