Lepismium rigidum (Loefgr.) Backeb., Cactaceae 2: 695. 1959 Lepismium rigidum (Loefgr.) Backeb., Cactaceae 2: 695. 1959is new combination for Rhipsalis rigida Loefgr. in Arch. Jard. Bot. Rio de Janeiro 1: 93. 1915Taxon for this nameLepismium rigidum (Loefgr.) Backeb.