识别要点：Dendrobium transparens is similar to Dendrobium aphyllum (Roxb.) C. E. Fischer. In Dendrobium transparens, the lip has a large deep purplish red patch along its middle and pubescent adaxially, but in the latter, lip is pale yellow and both surfaces densely pubescent.
形态特征：Stem 30 – 60 cm, cylindrical, with many nodes, nodes slightly thickened, internodes 2 – 3 cm long.Leaves borne on the young stems, ca. 7.5 – 10 cm × 1.3 cm, linear-lanceolate, apex oblique, acute, marginentire, base sheathing; leaf sheath pale white when dry, papery. Flowers in pairs from the nodes of the old or deciduous stems. Flora bracts ca. 1.2 cm × 0.4 –0.5 cm, broadly lanceolate, scarious, apex acuminate.Pedicle and ovary ca. 2.2 cm long. Sepals and petals white tinged with pale purplish red or distal part pale purplish red, lip with purplish red striation on both sides at base, has a large deep purplish red patch alongits middle, with purple lines towards the base. Sepals subequal, ca. 2.5 cm × 0.5 cm, lanceolate, acuminate, 6 – 7-veined; petals ca. 2.5 cm × 0.9 cm, ovate, cuneate at base, apex acute, 7 – 8-veined; lip obovate or suborbicular when spread out, ca. 2.7 cm × 1.5 cm, laterally embracing column and trumpet-shaped, base narrowly clawed, margin irregularly denticulate, pubescent adaxially; column ca. 4 mm long, with two horn-like stelidia; column foot ca. 8 mm, base with a small nectar-secreting cavity。
