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Bulbophyllum frostii Summerh. A. Plant; B. Inflorescence; C. Flower; D. Column and lip; E. Petal; F. Dorsal sepal; G. Lateral sepals; H. Lip (lateral view); I. Lip (dorsal view); J. Column; K. Anther cap; L. Pollinarium. (Photographed by Q. Liu).
