Typification and nomenclatural notes on twenty-three names of Buddleja (Schrophulariaceae) Author O’Leary, Nataly text Phytotaxa 2015 2015-11-18 234 3 237 245 http://dx.doi.org/10.11646/phytotaxa.234.3.4 journal article 10.11646/phytotaxa.234.3.4 1179-3163 13632992 Buddleja diffusa Ruiz & Pavón (1798: 53) Type ( lectotype , designated here):— PERU . 1787, “ Huanuco ” L . H . Ruíz & J . Pavón s.n. ( MA barcode 814371! [digital image]). Notes :— Norman (2000: 122) mentioned that the holotype of B. diffusa is a specimen housed at BM (barcode 600434). However this specimen is found not to be suitable, since it has no original reference to the protologue, as does a specimen housed at MA . So, according to Art. 9.19 of the ICN ( McNeill et al. 2012 ) Norman’s choice is superseded, and a lectotype is here designated. The collections made by L . H . Ruíz and J . Pavón at the “Virreinato de Perú ”, between years 1777–1788, are housed at MA herbarium ( Muñoz Garmendía 2004 ). A specimen with a label “ Huanuco 1787”, which agrees with the protologue, is here selected as the lectotype .