Suillus lacunosus was proposed by Otto Kuntze in 1898 as a new name for the species, and because of its earlier publication date, takes precedence over the superfluous name Boletus cookei proposed by Pier Andrea Saccardo and Hans Sydow in 1899.
Hans Sydow (29 January 1879–6 June 1946) was a German mycologist, son of Paul Sydow (1851–1925).
Hans Sydow (author abbreviation Syd., 1879–1946), a German mycologist, son of Paul
Hans Christian Andersen | Hans Holbein the Younger | Hans Zimmer | Hans Werner Henze | Hans Memling | Hans Pfitzner | Max von Sydow | Hans Küng | Hans Conried | Hans Knappertsbusch | Hans Magnus Enzensberger | Hans-Dietrich Genscher | Hans Blix | Hans Zender | Hans Scholl | Hans Hofmann | Hans Christian Ørsted | Hans Raj Hans | Hans Habe | Hans Baldung | Baron Hans Heinrich Thyssen-Bornemisza | Hans von Ohain | Hans van Manen | Hans Urs von Balthasar | Hans Sloane | Hans Rosbaud | Hans-Georg Backhaus | Hans-Adam II, Prince of Liechtenstein | Yuvraj Hans | Hans von Halban |