Sander, H. F. C. 1., Sander, F. K., & Sander, L. L. (1927). Sander's orchid guide: Containing all the best know species, varieties and natural hybrids of orchids in cultivation, their native countries, decriptions, seasons of flowering, best methods of cultivation, temperatures, &c. (Revised edition.). St. Albans: Sanders.

Sander, Henry Frederick Conrad 1847-1920, F. K. Sander, and L. L. Sander. Sander's Orchid Guide: Containing All the Best Know Species, Varieties and Natural Hybrids of Orchids in Cultivation, Their Native Countries, Decriptions, Seasons of Flowering, Best Methods of Cultivation, Temperatures, &c. Revised edition. St. Albans: Sanders, 1927.

Sander, Henry Frederick Conrad 1847-1920, F. K. Sander, and L. L. Sander. Sander's Orchid Guide: Containing All the Best Know Species, Varieties and Natural Hybrids of Orchids in Cultivation, Their Native Countries, Decriptions, Seasons of Flowering, Best Methods of Cultivation, Temperatures, &c. Revised edition. St. Albans: Sanders, 1927.