Letter from A. Hansen c. 1984. Biogr. details incl. portr. in article by L.Glicenstein in Orchids (West Palm Beach), 75(5): 327 (2006). See also, Orchids (West Palm Beach) 75(3): 198-205 (2006) and Lankesteriana 7: 159-164. (2003).
Example of Name Published
Odontoglossum hortensiae Lucas Rodr. in Orquidea (Mexico City) 7: 146 1979