File:Sir Joseph Dalton Hooker.jpgDescriptionSir Joseph Dalton Hooker.jpg English: Sir Joseph Dalton Hooker, 1860s Date 1860s date QS:P,+1860-00-00T00:00:00Z/8 Source http://www.npg.org
File:Joshooker.jpgoriginal description page was here. All following user names refer to de.wikipedia. 2005-06-18 10:17 Cyrene 230×312× (10906 bytes) Sir Joseph Dalton Hooker
File:Helichrysum pumilum HookF.jpgin the Years 1839-1843: Under the command of Captain Sir James Clark Ross. By Joseph Dalton Hooker. 1860. Available at https://www.biodiversitylibrary