Rosaceae A: 01756762 Crataegus arcana Beadle USA: Pennsylvania about 2 miles SW by S of Centre Square H. W. Pretz 8057 1916-5-20
A: 01759889 Crataegus compta Sargent USA: Pennsylvania Along E side branch R.R. near creek about 1/... H. W. Pretz 8041 1916-5-14
A: 01759890 Crataegus compta Sargent USA: Pennsylvania Close to L.V.R.R. about 7/8 mile SW by S of ... H. W. Pretz 8044 1916-5-17
A: 01759891 Crataegus compta Sargent USA: Pennsylvania Along E side branch R.R. near creek about 1/... H. W. Pretz 8493 1916-9-10
A: 01612372 Crataegus dodgei Ashe USA: Pennsylvania about 5/8 mile N of "pike," West Bethlehem a... H. W. Pretz 8538 1916-9-17
A: 01612373 Crataegus dodgei Ashe USA: Pennsylvania about 5/8 mile N of "pike," West Bethlehem a... H. W. Pretz 8056 1916-9-19
A: 01614018 Crataegus intricata Lange USA: Pennsylvania about 2 miles SW by S of Centre Square, Alle... H. W. Pretz 8079 1916-5-26
A: 01614021 Crataegus intricata Lange USA: Pennsylvania about 2 miles SW by S of Centre Square, Alle... H. W. Pretz 8508 1916-9-16
A: 01614622 Crataegus iracunda Beadle USA: Pennsylvania about 1 1/2 miles SW by S of Centre Square, ... H. W. Pretz 8048 1916-5-17
A: 01614624 Crataegus iracunda Beadle USA: Pennsylvania about 7/8 mile E by slightly NE of Slatedale... H. W. Pretz 8061 1916-5-21
A: 01614626 Crataegus iracunda Beadle USA: Pennsylvania about 1/8 mile W of Monocacy Creek and about... H. W. Pretz 8539 1916-9-17
A: 01614627 Crataegus iracunda Beadle USA: Pennsylvania about 1/8 mile W of Monocacy Creek and about... H. W. Pretz 8052 1916-5-19
A: 01614628 Crataegus iracunda Beadle USA: Pennsylvania Close to L.V.R.R., along S side of creek abo... H. W. Pretz 8043 1916-5-17
A: 01615547 Crataegus macracantha Loddiges ex Loudon USA: Pennsylvania about 2 miles SW by S of Centre Square, Alle... H. W. Pretz 8076 1916-5-26
A: 01666856 Crataegus macrosperma Ashe USA: Pennsylvania beside trolley tracks about 7/8 mile E by sl... H. W. Pretz 8062 1916-5-21
A: 01667007 Crataegus macrosperma Ashe USA: Pennsylvania between the Cedar Creek and Little Lehigh Ri... H. W. Pretz 8024 1916-5-12
A: 01667008 Crataegus macrosperma Ashe USA: Pennsylvania between the Cedar Creek and Little Lehigh Ri... H. W. Pretz 8503 1916-9-16
A: 01669212 Crataegus padifolia Sargent USA: Pennsylvania about 1/8 mile W of Monocacy Creek and about... H. W. Pretz 8070 1916-5-24
A: 01669213 Crataegus padifolia Sargent USA: Pennsylvania about 1/8 mile W of Monocacy creek and about... H. W. Pretz 8541 1916-9-17
A: 01670171 Crataegus pringlei Sargent USA: Pennsylvania about 1 3/4 miles SE by E of Macungie, P. O. H. W. Pretz 8463 1916-9-4
A: 01670172 Crataegus pringlei Sargent USA: Pennsylvania about 1 3/4 miles SE by E of Macungie, P. O. H. W. Pretz 8028 1916-5-14
A: 01646199 Crataegus pruinosa (J. C. Wendland) K. Koch USA: Pennsylvania at junction of Cedar Creek and Little Lehigh... H. W. Pretz 8047 1916-5-17
A: 01646200 Crataegus pruinosa (J. C. Wendland) K. Koch USA: Pennsylvania at junction of Cedar Creek and Little Lehigh... H. W. Pretz 8502 1916-9-16
A: 01646199 Crataegus pruinosa angulata (Sargent) E. J. Palmer USA: Pennsylvania at junction of Cedar Creek and Little Lehigh... H. W. Pretz 8047 1916-5-17
A: 01646200 Crataegus pruinosa angulata (Sargent) E. J. Palmer USA: Pennsylvania at junction of Cedar Creek and Little Lehigh... H. W. Pretz 8502 1916-9-16
A: 01649221 Crataegus succulenta Schrader ex Link USA: Pennsylvania Close to L.V.R.R., along S side of creek abo... H. W. Pretz 8071 1916-5-26