Title: Correspondence
Subjects: Correspondence, Orobanchaceae, Botanical specimens, Identification, Chara, Characeae
People: Thomas Nuttall (1786-1859), George Engelmann (1809-1884), William H. Emory (1811-1887), F. Pech (1807-1880), François André Michaux (1770-1855), A. W. Chapman (1809-1899), John Leonard Riddell (1807-1867), H. G. Reichenbach (1824-1889), E. Pech (1827-), Asa Gray (1810-1888)