Harvard University Herbaria & Libraries

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Asteraceae
A: 00417504 Ericameria nauseosa mohavensis (Greene) G. L. Nesom & G. I. Baird USA: California Copernicus Peak, Mt. Hamilton Range F. O. Ballou 1923-10-1
Cupressaceae
A: 02020215 Cupressus arizonica Greene USA: Arizona Rucker Canon, Chiricahua Mts. F. O. Ballou 1928-3-25
A: 02104689 Juniperus deppeana Steudel USA: Arizona Mule Mountains F. O. Ballou 1928-3-2
Ephedraceae
A: 00933709 Ephedra trifurca Torrey ex S. Watson USA: Arizona San Bernardino Valley F. O. Ballou 1928-4-18
Ericaceae
A: 01117657 Arctostaphylos pungens Kunth USA: Arizona Mule Pass near Bisbee F. O. Ballou 1928-3-2
Pinaceae
A: 00396468 Picea engelmannii Parry ex Engelmann USA: Arizona north slope of Fly's Peak Chiricahua Mts F. O. Ballou 1928-4-1
A: 00397542 Pinus arizonica Engelmann USA: Arizona ridge near Turtle Mountain. Chiricahua Mts. F. O. Ballou 1928-3-25
A: 00397885 Pinus cembroides Zuccarini USA: Arizona Mule Mountains F. O. Ballou 1927-11-11
A: 00397946 Pinus chihuahuana Engelmann USA: Arizona Rucker Canyon, Chiricahua Mts F. O. Ballou 1928-3-25
A: 00398711 Pinus flexilis James USA: Arizona on ridge west of Monte Vista Peak Chiricahua... F. O. Ballou 1928-3-25
A: 01113355 Pseudotsuga menziesii (Mirbel) Franco USA: Arizona near Flys Peak; Chiricahua Mts F. O. Ballou 1928-4-1
Rosaceae
A: 01556436 Purshia stansburiana (Torrey) Henrickson USA: Arizona Leslie Canyon near Douglas F. O. Ballou 1928-4-15