Stupefied by CD’s five forms of Lythrum.
Asa Gray busy with Cypripedium. JDH offers some to CD if he wants to challenge Gray.
J. W. Dawson’s review of JDH’s paper on Arctic plants.
Louis Lucien Bonaparte’s views on Basque and Finnish language [Langue basque et langues finnoises (1862)] suggest to JDH that Basques are Finns left behind after the glacial period, like the Arctic plants!