Hexalectris nitida

L. O. Williams

J. Arnold Arbor. 25: 81. 1944.

Common names: Glass Mountain coral-root shining cock’s-comb
Treatment appears in FNA Volume 26. Treatment on page 605. Mentioned on page 603, 604, 607.

Stems pinkish, pale-red, or brown-purple, 10–32 cm; sheathing bracts 3–5. Inflorescences: floral bracts ovate-oblong to lanceolate, 3–7 × 3 mm. Flowers 6–24, pedicellate; sepals and petals spreading and recurved, cleistogamous to chasmogamous; dorsal sepal narrowly oblongelliptic, 8–13 × 3–4.5 mm, apex obtuse; lateral sepals obliquely elliptic to oblanceolate, rounded, slightly falcate, 7–12 × 3–4.5 mm; petals obovate to oblanceolate, falcate, 8–11 × 2–3.5 mm, apically rounded; lip shallowly 3-lobed, 7–11 × 4–8 mm, middle lobe suborbiculate, pink to purple, lateral lobes 1/3 length of middle lobe; minimal lamellae or slightly raised veins 5 or 7, near base of middle lobe, mostly obscured apically; column white, 6–8 mm; anther yellow. Capsules 15 × 5 mm.


Phenology: Flowering Jun–Aug.
Habitat: Moist canyons in oak-juniper-pinyon pine woodlands growing in humus, often in decaying juniper needle litter
Elevation: 200–1500 m

Discussion

The Texas plants occur in the Chisos and Glass mountains, on the eastern and southern Edwards Plateau, and in the Dallas area. Most of the plants on the Edwards Plateau appear to have cleistogamous flowers, and only occasionally display open flowers (J. Liggio and A. Liggio 1999). Plants of Hexalectris nitida examined from the United States have been self-pollinating because of a reduced rostellum. In central Texas, in particular, flowers of this species are cleistogamous. They also are found under Juniperus in that area (V. S. Engel 1987) and flower well after ample late–spring rain.

Selected References

None.

Lower Taxa

None.

"/3lengthofmiddlelobe" is not declared as a valid unit of measurement for this property.

... more about "Hexalectris nitida"
self-pollination +
Douglas H. Goldman +, Ronald A. Coleman +, Lawrence K. Magrath +  and Paul M. Catling +
L. O. Williams +
free +  and distinct +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
flattened +, triangular +  and cylindric +
reduced +
15 cm150 mm <br />0.15 m <br /> (?) +
5 cm50 mm <br />0.05 m <br /> (?) +
Glass Mountain coral-root +  and shining cock’s-comb +
N.Mex. +, Tex. +  and Mexico +
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
200–1500 m +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
maroon +, purple +, magenta +, brown +  and tan +
Moist canyons in oak-juniper-pinyon pine woodlands growing in humus, often in decaying juniper needle litter +
lateral +  and terminal +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
falcate +, rounded +, obliquely elliptic +  and oblanceolate +
petiolate +, sessile +  and simple +
duplicate +, convolute +, whorled +, opposite +, distichous +  and alternate +
cauline +  and basal +
reduced +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
3-lobed +
larger +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
differing in form and color +
pink +  and purple +
2 (?) +  and 4 (?) +
1-many-flowered +  and cymose +
pendent +  and erect +
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
recurved +  and spreading +
cleistogamous;chasmogamous +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Flowering Jun–Aug. +
aboveground +
aboveground +
J. Arnold Arbor. +
articulate +  and branching +
aerial +  and subterranean +
minute +
free +, distinct +, adnate +  and connate +
recurved +  and spreading +
foliaceous +
not +  and alike +
branched +, or +  and simple +
brown-purple +, pale-red +  and pinkish +
proliferous +
thickened +  and stout +
10 cm100 mm <br />0.1 m <br /> (32 cm320 mm <br />0.32 m <br />) +
subterminal +
concave +  and convex +
Hexalectris nitida +
Hexalectris +
species +
rootless +  and leafless +
herb +, colonial +  and solitary +
aquatic +, lithophytic +, terrestrial +  and epiphytic +