FIGURE 4. Bulbophyllum thangii. A. Flowering plant. B in Bulbophylum sect. Cirhopetallum s. str. (Orchidaceae) in Vietnam with the description of a new species, B. thangii, and a new national record, B. fenestratum

FIGURE 4. Bulbophyllum thangii. A. Flowering plant. B. Pseudobulb and leaf, abaxial side. C. Inflorescence. D. Floral bracts. E. Flowers, views from different sides. F. Proximal part of flowers, front and side view. G. Dorsal sepal, adaxial and abaxial side. H. Lateral sepals, adaxial and abaxial side. I. Petals, adaxial and abaxial side. J. Lip, views from different sides. K. Column, petals and lip, side view. L. Column and lip, side view. M. Pedicel, ovary and column. N. Column, view from back. O. Column apex, front view. P. Anther cap, view from above and from below. Q. Pollinarium. All photo by Truong Ba Vuong from the type specimen (BV 1775), photo correction and design by L. Averyanov and T. Maisak.