Cephalanthera austiniae

(A. Gray) A. Heller

Cat. N. Amer. Pl. ed. 2, 4. 1900.

Common names: Phantom orchid snow orchid
IllustratedEndemic
Basionym: Chloraea austiniae A. Gray Proc. Amer. Acad. Arts 12: 83. 1877 (as austinae)
Synonyms: Eburophyton austiniae (A. Gray) A. Heller
Treatment appears in FNA Volume 26. Treatment on page 584.
Revision as of 04:27, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Plants pure white, 19–65 cm. Leaves proximally reduced to scarious sheathing bracts, to 10 cm, distally reduced to bracts, pure white, becoming brown. Inflorescences: floral bracts scarious, the proximal often foliaceous, distal usually reduced, lanceolate, apex acuminate. Flowers ascending, loosely open orbs, white with yellow markings; sepals lance-elliptic, 12–20 × 4–7 mm, base spread, curving forward to meet but not touch, apex obtuse to subacute; petals oblanceolate, arcuate, 10–17 × 3–6 mm, associated with dorsal sepal; lip 8–12 × 9–14 mm, lateral lobes flanking column, distal end deflexed, yellow centrally. Capsules erect, ellipsoid-oblanceoloid, 15 × 10 mm.


Phenology: Flowering summer.
Habitat: Mineral soil in dry to moist coniferous forests
Elevation: 0–2200 m

Distribution

V26 1192-distribution-map.jpg

B.C., Calif., Idaho, Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Cephalanthera austiniae"
self-pollination +
acuminate +
Charles J. Sheviak +  and Paul M. Catling +
(A. Gray) A. Heller +
curving +
obtuse +  and subacute +
Chloraea austiniae +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
flattened +, triangular +  and cylindric +
reduced +
15 cm150 mm <br />0.15 m <br /> (?) +
ellipsoid-oblanceoloid +
10 cm100 mm <br />0.1 m <br /> (?) +
Phantom orchid +  and snow orchid +
B.C. +, Calif. +, Idaho +, Oreg. +  and Wash. +
0–2200 m +
large +  and minute +
Mineral soil in dry to moist coniferous forests +
lateral +  and terminal +
petiolate +, sessile +  and simple +
brown +  and white +
cauline +  and basal +
reduced +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
divided +
larger +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
differing in form and color +
1-many-flowered +  and cymose +
pendent +  and erect +
10mm;17mm +
oblanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering summer. +
Cat. N. Amer. Pl. ed. +
aerial +  and subterranean +
slender +
minute +
free +, distinct +, adnate +  and connate +
foliaceous +
not +  and alike +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Illustrated +  and Endemic +
pendent +  and erect +
proliferous +
thickened +  and stout +
concave +  and convex +
Eburophyton austiniae +
Cephalanthera austiniae +
Cephalanthera +
species +
aquatic +, lithophytic +, terrestrial +  and epiphytic +
saprophytic +, photosynthetic +  and mycotrophic +