Jim Cootes continues his series on the genus Dendrobium with Part 17: Dendrobium section Stachyobium, a widespread section comprising some 44 species ranging in size from miniature to plants with 2-foot canes.

Jim Cootes continues his series on the genus Dendrobium with Part 18: Dendrobium sections Bolbodium, Brevisaccata and Microphytanthe; three small sections with only a few species each.

Jim Cootes continues his series on the genus Dendrobium with Part 19: Dendrobium sections Lichenastrum and Microphyllaea; two very small sections with miniature species.