Flora of North America species comparison

few, horizontally spreading, slender, mostly to 0.4 cm diam.

mostly to 1 cm diam., few, stout.

persisting through anthesis, basal, sometimes on basal portion of stem, spreading, linear-oblanceolate to narrowly elliptic, to 21 × 2 cm.

withering at anthesis, 3–7, basal, spreading, oblanceolate, 5.5 × 0.75–1 cm.

rather loosely to very tightly spiraled, 3–4 flowers per cycle of spiral, occasionally 5 or more in very loose spiral;

rachis moderately pubescent, some trichomes capitate, glands obviously stalked.

secund to tightly spiraled, 8–10 flowers per cycle of spiral;

rachis pubescent, some trichomes capitate, glands obviously stalked.

ochroleucous, ivory, creamy, yellowish, or greenish white, ascending, urceolate to somewhat gaping, claw of lip at pronounced (20–60°) angle to lamina, base cuneate, appearing strongly inflated;

sepals distinct to base, 6–14 mm;

lateral sepals appressed to petals and lip, straight, separated from dorsal sepal by mostly 0.7–1 mm;

petals linear to linear-oblong, 6–13 mm, apex acute to obtuse;

lip often more yellow centrally, oblong to ovate, 7–12 × 4–7 mm, margins crenulate, glabrous;

veins several, branches parallel;

basal calli incurved, prominent, very rarely conic, 1–2 mm;

viscidia linear;

ovary 3–7 mm.

white;

sepals green at base, spatulate, 3–4.5 × 1 mm;

petals green at base, linear to lance-oblong, 3–4.5 × 1 mm, apex acute to obtuse;

lip with distinct green central portion, ovate to oblong, 3–5 × 2–3 mm, narrowed to rounded apex;

veins several, divergent;

basal calli pointed outward, thickened, mostly to 1 mm;

viscidium linear-lanceolate;

ovary mostly 3 mm.

monoembryonic.

monoembryonic.

= 30.