Engelmann, G., Report on the botany of the expedition of Capt. J.H. Simpson across the great basin of Utah (1859), Appendix M (1876) [3]
Rep. Bot. Exped. Capt. Simpson Utah
(1876) [3]
Link to this page:
http://plantillustrations.org/volume.php?id_volume=1571 not available (localhost only)