Asteraceae A: 01234446 Artemisia spiciformis Osterhout USA: Colorado Weston's Pass J. G. Jack 1898-9-13
A: 02205809 Ericameria nauseosa oreophila (A. Nelson) G. L. Nesom & G. I. Baird USA: Colorado Buena Vista J. G. Jack 1898-9-14
Caprifoliaceae A: 02183950 Sambucus racemosa Linnaeus USA: Colorado Pike's Peak wagon road J. G. Jack 1898-8-30
A: 02036183 Symphoricarpos occidentalis Hooker USA: Colorado Junction of S. Platte R. + Goose Creek J. G. Jack 1898-10-5
Cupressaceae A: 02104548 Juniperus communis montana Aiton USA: Colorado Geneva Gulch, near Grant J. G. Jack 1898-10-12
GH: 02105380 Juniperus monosperma Sargent USA: Colorado Williams Canon, Manitou J. G. Jack 1898-8-24
A: 02105371 Juniperus monosperma Sargent USA: Colorado Williams Canon, Manitou J. G. Jack 1898-10-30
A: 02105370 Juniperus monosperma Sargent USA: Colorado Williams Canon, Manitou J. G. Jack 1898-10-30
A: 02106047 Juniperus scopulorum Sargent USA: Colorado Perry Park J. G. Jack 1898-10-19
A: 02106069 Juniperus scopulorum Sargent USA: Colorado Grahams ranch, Goose Creek J. G. Jack 1898-10-5
A: 02106067 Juniperus scopulorum Sargent USA: Colorado Turkey Creek, s. of Thunder Butte J. G. Jack 1898-10-25
A: 02106064 Juniperus scopulorum Sargent USA: Colorado Turkey Creek, near Thunder Butte J. G. Jack 1898-10-25
A: 02106061 Juniperus scopulorum Sargent USA: Colorado Turkey Creek, s. of Thunder Butte J. G. Jack 1898-10-25
Fabaceae A: 00591587 Genista tinctoria Linnaeus USA: Massachusetts Boylston: Boylston J. G. Jack 1898-7-2
Loranthaceae GH: 00648390 Arceuthobium pusillum Peck USA: Massachusetts Acton: Acton J. G. Jack 1898-5-10
A: 00648398 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-7-2
A: 00648399 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-7-2
A: 00648400 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-4-21
A: 00648401 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-4-21
A: 00648402 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-5-9
GH: 00648403 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-9-5
GH: 00648404 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-9-5
NEBC: 00686000 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-9-5
NEBC: 00686001 Arceuthobium pusillum Peck USA: Massachusetts Boylston: Boylston J. G. Jack 1898-9-5
GH: 00686003 Arceuthobium pusillum Peck USA: Massachusetts Clinton: Clinton J. G. Jack 1898
GH: 00648414 Arceuthobium pusillum Peck USA: Massachusetts Clinton: Clinton J. G. Jack 1898
NEBC: 00686004 Arceuthobium pusillum Peck USA: Massachusetts Clinton: Clinton J. G. Jack 1898
NEBC: 00686005 Arceuthobium pusillum Peck USA: Massachusetts Clinton: Clinton J. G. Jack 1898
Pinaceae A: 00397244 Picea pungens Engelmann USA: Colorado Grant J. G. Jack 1898-10-12
A: 00397245 Picea pungens Engelmann USA: Colorado between Woodland Park and Palmer Lake J. G. Jack 1898-10-18
A: 00398517 Pinus edulis Engelmann USA: Colorado Manitou J. G. Jack 1898-10-30
A: 00399347 Pinus ponderosa scopulorum Engelmann USA: Colorado Dunaway, S. Platte River J. G. Jack 1898-10-6
A: 01113399 Pseudotsuga menziesii (Mirbel) Franco USA: Colorado near Palmer Lake J. G. Jack 1898-10-20
Rosaceae A: 00674025 Amelanchier stolonifera Wiegand USA: Massachusetts Boylston: Boylston J. G. Jack 1898-7-2
A: 01759650 Crataegus colorado Ashe USA: Colorado Collected along Buffalo Creek J. G. Jack 1898-10-6
A: 00683940 Crataegus dilatata Sargent USA: Massachusetts Boylston: Boylston J. G. Jack 1898-5-23
A: 01647454 Crataegus rivularis Nuttall ex Torrey & A. Gray USA: Colorado Grant J. G. Jack 1898-10-12
A: 01647455 Crataegus rivularis Nuttall ex Torrey & A. Gray USA: Colorado Grant J. G. Jack 1898-10-1
A: 01705080 Prunus americana Marshall USA: Colorado Plum Creek, near Sedalia J. G. Jack 1898-8-22
A: 00742819 Prunus susquehanae Willdenow USA: Massachusetts Boylston: Boylston J. G. Jack 1898-6-13
A: 01707374 Rosa acicularis sayi (Schweinitz) W. H. Lewis USA: Colorado Pike's Peak R. R. J. G. Jack 1898-9-20
GH: 01707375 Rosa acicularis sayi (Schweinitz) W. H. Lewis USA: Colorado Breckenridge J. G. Jack 1898-9-6
Salicaceae A: 00641329 Salix conifera Wangenheim USA: Massachusetts Wellesley: Wellesley J. G. Jack 1898-7-4
Saxifragaceae A: 01886203 Ribes inebrians Lindley USA: Colorado Southern slope of Tarryall Mts at Mountainda... J. G. Jack 1898-8-26
A: 01886300 Ribes inerme Rydberg USA: Colorado Tarryall Creek at Mountaindale J. G. Jack 1898-8-26
A: 01887247 Ribes montigenum McClatchie USA: Colorado Pikes Peak wagon road J. G. Jack 1898-8-30
A: 01887248 Ribes montigenum McClatchie USA: Colorado East slope of Pikes Peak J. G. Jack 1898-9-17
