Chamaegastrodia guidongensis

Description: — Plant 10 – 25 cm, leafless. Rhizome, stout, 3 – 8 mm in diam., fleshy, translucent, glossy, light yellow to pale hazel red, with sparse short branches; mature branches ca. 8 mm, short, coralloid, brown to white fading from base to apex; sparse short fiber no more than 3 mm, slender. Stem 7 – 20 cm, ca. 3 mm diam., erect, pale hazel, covered with overlapping sheathing scales; scales 7 – 15 mm, decurrent at base and acuminate to abruptly tapered at the apex, pale-hazel in color, translucent, membranous, with short fleshy puberulent. Inflorescence with 3 – 9 flowers, puberulous rachis ca. 3.3 cm, elongating during fruiting; floral bracts, ca. 7 mm, as 2 / 3 the length of the ovary, ovate to lanceolate, orange-yellow to pale brown, depth and reverse warping at apex, with uneven surface; pedicel and ovary fusiform, ca. 8 mm, finely puberulous. Flowers non-resupinate; sepals fawn-colored, orange-yellow at apex, translucent, membranous, densely puberulous externally; dorsal sepal ca. 1.7 × 4.5 mm, ovate, acute, with many parallel distinct veins; lateral sepals ca. 6.4 × 3.1 mm, falcate, acute, with one distinct midvein and many parallel veins; petals ca. 4.8 × 2.3 mm, falcate, acute, pale yellow-orange at base, translucent, membranous, parallel veins only at apex; lip ca. 9.3 mm, canoe-shaped, margin wavy, folded inward, mid-part concaved with ridged midvein, wrinkled outside but smooth inside; hypochile dilated 3 - times than epichile, concave-saccate wrapping the column up, yellow-orange, containing 2 sessile, sarcoma-shaped orange calli at base, one on each side of the sac; epichile, folded tightly, fawn; column ca. 5.0 × 2.2 mm, short, with 2 triangular, fleshy wings attached to apex vertically; anther ca. 0.8 × 0.1 mm, long-ovoid, attached to column via a short linear filament; rostellum forked, ca. 2.3 mm, erect, longer than the anther cap peak.