Nomenclatural novelties in types from Grisebach. The study of Grisebach\u27s types from CORD has allowed clarifying the identity of two dubious or not well known names. A new combination in Byttneria is also proposed.El estudio de tipos Grisebachianos de CORD ha permitido aclarar la identidad de dos nombres dudosos o no bien conocidos. Se realiza una nueva combinación en Byttneria