Appendix B i. 
cxlvii 
Western United States. 
Coulter (J.). Gulf of California, Journ. Bot. i, 175. 
Douglas (D.). Travels in British Columbia and California, Comp. 
Bot. Mag. ii, 89, 140. 
— — Second visit to the Columbia River, Comp. Bot. Mag. ii, 146. 
Emory (Capt.). Notes on Californian Plants, Kew Gard. Misc. i, 92. 
Engleman (G.). Botany of Wislizenius Expedition, Bot. Mag. lxxiv, 
Comp. 35. 
Eendler (A.). Journey to Sta. F£, Lond. Journ. Bot. vii, 44 ; Kew 
Gard. Misc. i, 62 ; iii, 190. 
Gambel (W.). Plants of Rocky Mountains and Upper California, 
Lond. Journ. Bot. vii, 391. 
Geyer (C. A.). Missouri and Oregon Botany, Lond. Journ. Bot. 
iii, 139. 
Gordon (Alex.). Proposed Journey to Texas, Lond. Journ. Bot. 
iv, 492. 
Gray (Asa). Plantae Fendlerianae, Kew Gard. Misc. i, 125. 
Plantae Wrightianae, Kew Gard. Misc. iv, 287. 
Jeffrey (J.). Oregon Bot. Expedition, Kew Gard. Misc. v, 315. 
Lewis and Clarke. Exped. across Rocky Mts., Journ. Bot. iii, 105. 
Nuttall (T.). On Gambel’s Collections, Lond. Journ. Bot. vii, 391. 
Taylor (A. G.). The Mammoth Tree, Kew Gard. Misc. viii, 106. 
Torrey (J.). Plantae Fremontianae, Kew Gard. Misc. v, 414. 
Plants of the Great Salt Lake, Kew Gard. Misc. v, 63. 
Trask (G. L.). The Mammoth Tree, Kew Gard. Misc. viii, 150. 
Winslow (C. F.). On Wellingtonia, Kew Gard. Misc. vii, 26. 
Mexico, Panama, Central America. 
Bentham (G.). Plantae Hartwegianae, Journ. Bot. ii, 188. 
Botteri (M.). Collections in Mexico, Kew Gard. Misc. vii, 31 ; ix, 84. 
Christy (H.). Letter from Mexico, Kew Gard. Misc. viii, 283. 
Hartweg (Th.). Expedition to Mexico, Comp. Bot. Mag. ii, 184. 
Liebman (F.). Oaks of Mexico, &c., Kew Gard. Misc. iv, 321 ; v, 9. 
Begonias of Mexico and Central America, Kew Gard. Misc. 
v, 84. 
Linden (J. J.). Collections in Mexico, Kew Gard. Misc. vi, 58. 
Oersted (A. S.). Rubiaceae of Central America, Kew Gard. Misc. 
v, 45- 
