Küsten-Tanne
He described several of the major conifers discovered in the period, including first descriptions of Coast Redwood ("Taxodium sempervirens" D. Don; now "Sequoia sempervirens" (D. Don) Endl.), Bristlecone Fir ("Pinus bracteata" D. Don, now "Abies bracteata" (D. Don) A. Poit.), Grand Fir ("Pinus grandis" Douglas ex D. Don; now "Abies grandis" (Douglas ex D. Don) Lindl.) and Coulter Pine ("Pinus coulteri" D. Don), and was the first to treat Sugi ("Cupressus japonica" Thunb.; now "Cryptomeria japonica" (Thunb.) D. Don) in a new genus.