Hexalectris spicata

(Walter) Barnhart

Torreya 4: 121. 1904.

Common names: Crested coral-root
Basionym: Arethusa spicata Walter Fl. Carol., 222. 1788
Synonyms: Corallorhiza spicata (Walter) Tidestrom
Treatment appears in FNA Volume 26. Treatment on page 604. Mentioned on page 603, 605, 607.

Stems: sheathing bracts 3–5. Inflorescences: floral bracts lanceolate to triangular-ovate, 5–10 × 2–6 mm. Flowers 5–25; pedicels 8–20 mm; lateral sepals oblong-ovate to oblong-lanceolate, falcate, apex acute; petals weakly to strongly recurved, elliptic, oblong-obovate, oblanceolate, or obovate, falcate; lip ovate to obovate, clawed, shallowly 3-lobed, fissure between lobes less than 2 mm deep, middle lobe ovate to suborbiculate, margins undulate, apically rounded to truncate, lateral lobes incurved, broadly rounded to obtuse, margins entire, apically triangular to rounded; lamellae 5 (–7), central, purple to white; column white to yellowish white, apically winged, 11–18 mm; anthers whitish to yellow.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Flowers chasmogamous; rostellum present; lamellae 0.7–1 mm; petals greater than 14 × 5 mm. Hexalectris spicata var. spicata
1 Flowers cleistogamous or nearly so, occasionally chasmogamous; rostellum reduced or absent; lamellae 0.2–0.7 mm; petals less than 16 × 5 mm. Hexalectris spicata var. arizonica
... more about "Hexalectris spicata"
whitish +  and yellow +
self-pollination +
Douglas H. Goldman +, Ronald A. Coleman +, Lawrence K. Magrath +  and Paul M. Catling +
(Walter) Barnhart +
free +  and distinct +
Arethusa spicata +
indehiscent +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
not +  and articulate +
conduplicate +  and plicate +
flattened +, triangular +  and cylindric +
reduced +
white +  and yellowish white +
11mm +  and 18mm +
Crested coral-root +
c +, e North America +  and Mexico +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
3-merous +, sessile +  and pedicellate +
maroon +, purple +, magenta +, brown +  and tan +
lateral +  and terminal +
purple +  and white +
falcate +, oblong-ovate +  and oblong-lanceolate +
petiolate +, sessile +  and simple +
duplicate +, convolute +, whorled +, opposite +, distichous +  and alternate +
cauline +  and basal +
reduced +
3-lobed +, clawed +, ovate +  and obovate +
larger +
apically triangular +  and rounded +
differing in form and color +
2 (?) +  and 4 (?) +
1-many-flowered +  and cymose +
pendent +  and erect +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
aboveground +
aboveground +
articulate +  and branching +
aerial +  and subterranean +
minute +
free +, distinct +, adnate +  and connate +
foliaceous +
not +  and alike +
branched +, or +  and simple +
reddish purple +, pinkish red +, pink +  and yellowish-brown +
proliferous +
thickened +  and stout +
subterminal +
concave +  and convex +
Corallorhiza spicata +
Hexalectris spicata +
Hexalectris +
species +
rootless +  and leafless +
herb +, colonial +  and solitary +
aquatic +, lithophytic +, terrestrial +  and epiphytic +