Harvard University Herbaria & Libraries

Rosaceae
A: 01756772 Crataegus arcana Beadle USA: Pennsylvania Deep Run C. D. Fretz 126 1900-9-20
A: 01756773 Crataegus arcana Beadle USA: Pennsylvania Deep Run C. D. Fretz 126 1900-5-21
A: 01756774 Crataegus arcana Beadle USA: Pennsylvania California C. D. Fretz 122 1900-9-17
A: 01756775 Crataegus arcana Beadle USA: Pennsylvania California C. D. Fretz 122 1900-5-22
A: 01757204 Crataegus biltmoreana Beadle USA: Pennsylvania Pleasant Spring Bridge C. D. Fretz 108 1900-5-28
A: 01757205 Crataegus biltmoreana Beadle USA: Pennsylvania Pleasant Spring Bridge C. D. Fretz 108 1900-9-13
A: 01612173 Crataegus dissona Sargent USA: Pennsylvania Deep Run C. D. Fretz 131 1900-5-28
A: 01612342 Crataegus dodgei Ashe USA: Pennsylvania California C. D. Fretz 123 1900-5-22
A: 01612348 Crataegus dodgei Ashe USA: Pennsylvania California C. D. Fretz 123 1900-9-17
A: 01614589 Crataegus iracunda Beadle USA: Pennsylvania Pleasant St. Bridge, Sellersville C. D. Fretz 107 1900-5-21
A: 01666881 Crataegus macrosperma Ashe USA: Pennsylvania Ridge Road, Sellersville C. D. Fretz 130 1900-5-16
A: 01666882 Crataegus macrosperma Ashe USA: Pennsylvania Ridge Road, Sellersville C. D. Fretz 130 1900-9-13
A: 01646107 Crataegus pruinosa (J. C. Wendland) K. Koch USA: Pennsylvania Milltown - Cl. St. Bridge C. D. Fretz 124 1900-5-20
A: 01646108 Crataegus pruinosa (J. C. Wendland) K. Koch USA: Pennsylvania Milltown - Cl. St. Bridge C. D. Fretz 124 1900-9-14
GH: 01722424 Prunus maritima Marshall USA: Pennsylvania Hilltown Twp., near Sellersville C. D. Fretz 1900-5-13