Letter from A. Hansen c. 1982; Index Herbariorum ed.8 from J.Paiva 19 Dec. 1990. Date of death from grandson, Miguel Pinto da Silva Menezes de Sequeira.
Example of Name Published
Merendera bulbocodium f. alba Q.J.P.Silva in Agron Lusit., 34(3): 182 (1972 publ. 1973)