Harvard University Herbaria & Libraries

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Apocynaceae
GH: 02178042 Apocynum cannabinum Linnaeus USA: Pennsylvania Near Sellersville C. D. Fretz 1921-6-23
Brassicaceae
GH: 01087068 Cardamine rhomboidea (Persoon) de Candolle USA: Pennsylvania Sellersville C. D. Fretz 1924-5-26
Cyperaceae
GH: 00056886 Carex grisea rigida L. H. Bailey USA: Pennsylvania Sellersville: Steep hill-side C. D. Fretz 1884
GH: 00056886 Carex planispicata Naczi USA: Pennsylvania Sellersville: Steep hill-side C. D. Fretz 1884
Rosaceae
A: 00018078 Crataegus abjecta Sargent USA: Pennsylvania Sellersville: C. D. Fretz 108 1899-8-11
A: 00018079 Crataegus abjecta Sargent USA: Pennsylvania Sellersville: C. D. Fretz 108 1901-6-3
A: 00018125 Crataegus alacris Sargent USA: Pennsylvania Sellersville: C. D. Fretz 125 1903-9-21
A: 00018126 Crataegus alacris Sargent USA: Pennsylvania Sellersville: C. D. Fretz 125 1903-9-21
A: 00018124 Crataegus alacris Sargent USA: Pennsylvania Sellersville: C. D. Fretz 125 1903-5-16
A: 00018122 Crataegus alacris Sargent USA: Pennsylvania Sellersville: C. D. Fretz 125 1900-5-21
A: 00018123 Crataegus alacris Sargent USA: Pennsylvania Sellersville: C. D. Fretz 125 1900-9-20
A: 00018127 Crataegus alacris Sargent USA: Pennsylvania Sellersville: C. D. Fretz 125 1903-5-16
A: 00018389 Crataegus austera Sargent USA: Pennsylvania Sellersville: C. D. Fretz 127 1900-9-20
A: 00018388 Crataegus austera Sargent USA: Pennsylvania Sellersville: C. D. Fretz 127 1900-5-21
A: 00002584 Crataegus callicarpa Sargent USA: Missouri Shrewsbury: C. D. Fretz 3 1907-4-26
A: 00002585 Crataegus callicarpa Sargent USA: Missouri Shrewsbury: C. D. Fretz 3 1907-4-26
A: 00002600 Crataegus callista Sargent USA: Pennsylvania Sellersville: Near Rockhill Station C. D. Fretz 155 1903-5-22
A: 00018305 Crataegus canbyi Sargent USA: Pennsylvania Quakertown: C. D. Fretz 120 1899-10-3
A: 00018304 Crataegus canbyi Sargent USA: Pennsylvania Quakertown: C. D. Fretz 120 1899-10-3
A: 00002584 Crataegus coccinioides Ashe USA: Missouri Shrewsbury: C. D. Fretz 3 1907-4-26
A: 00002585 Crataegus coccinioides Ashe USA: Missouri Shrewsbury: C. D. Fretz 3 1907-4-26
A: 00018333 Crataegus collinsiana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 163 1903-5-15
A: 00018334 Crataegus collinsiana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 163 1903-9-14
A: 00002855 Crataegus condensa Sargent USA: Pennsylvania Sellersville: Pleasant Spring Bridge C. D. Fretz 173 1903-9-17
A: 00003076 Crataegus crus-galli oblongata Sargent USA: Pennsylvania Dunham: C. D. Fretz 147A 1901-10-19
A: 00002994 Crataegus deducta Sargent USA: Pennsylvania Sellersville: C. D. Fretz 112 1899-10-2
A: 00002992 Crataegus deducta Sargent USA: Pennsylvania Sellersville: C. D. Fretz 112 1899-7-25
A: 00002993 Crataegus deducta Sargent USA: Pennsylvania Sellersville: C. D. Fretz 112 1899
A: 00002991 Crataegus deducta Sargent USA: Pennsylvania Sellersville: C. D. Fretz 112 1901-10-20
A: 00016318 Crataegus delicata Sargent USA: Pennsylvania Sellersville: C. D. Fretz 177 1903-9-14
A: 00016317 Crataegus delicata Sargent USA: Pennsylvania Sellersville: C. D. Fretz 177 1903-5-15
A: 00003320 Crataegus deltoides Ashe USA: Pennsylvania Sellersville: C. D. Fretz 104 1901-9-11
A: 00003321 Crataegus deltoides Ashe USA: Pennsylvania Sellersville: Near Ridge Road, Rockhill C. D. Fretz 104 1899-9-27
A: 00017665 Crataegus firma Sargent USA: Pennsylvania C. D. Fretz 128 1900-5-18
A: 00017666 Crataegus firma Sargent USA: Pennsylvania C. D. Fretz 128 1900-9-13
A: 00017797 Crataegus fretzii Sargent USA: Pennsylvania Dunham: C. D. Fretz 151 1901-5-20
A: 00017794 Crataegus fretzii Sargent USA: Pennsylvania Dunham: C. D. Fretz 151 1901-5-30
A: 00017795 Crataegus fretzii Sargent USA: Pennsylvania Dunham: C. D. Fretz 151 1901-9-24
A: 00017796 Crataegus fretzii Sargent USA: Pennsylvania Dunham: C. D. Fretz 151 1901-9-30
GH: 00023466 Crataegus infera Sargent USA: Pennsylvania Sellersville: C. D. Fretz 162 1905-5-21
A: 00017952 Crataegus infera Sargent USA: Pennsylvania Sellersville: C. D. Fretz 162 1905-5-21
A: 00016602 Crataegus jejuna Sargent USA: Pennsylvania Sellersville: C. D. Fretz 145 1901-5-24
A: 00016601 Crataegus jejuna Sargent USA: Pennsylvania Sellersville: C. D. Fretz 145 1901-5-24
A: 00016759 Crataegus lata Sargent USA: Pennsylvania Sellersville: C. D. Fretz 140 1901-5-22
A: 00016760 Crataegus lata Sargent USA: Pennsylvania Sellersville: C. D. Fretz 140 1903-9-22
A: 00016840 Crataegus longipetiolata Sargent USA: Pennsylvania Sellersville: C. D. Fretz 178 1903-5-15
A: 00016841 Crataegus longipetiolata Sargent USA: Pennsylvania Sellersville: C. D. Fretz 178 1903-9-14
A: 00016759 Crataegus macrosperma Ashe USA: Pennsylvania Sellersville: C. D. Fretz 140 1901-5-22
A: 00016760 Crataegus macrosperma Ashe USA: Pennsylvania Sellersville: C. D. Fretz 140 1903-9-22
A: 00018029 Crataegus micrantha Sargent USA: Pennsylvania Sellersville: C. D. Fretz 183 1903-9-18
A: 00018028 Crataegus micrantha Sargent USA: Pennsylvania Sellersville: C. D. Fretz 183 1903-5-20
A: 00016967 Crataegus modica Sargent USA: Pennsylvania Sellersville: C. D. Fretz 109 1900-5-18
A: 00016992 Crataegus moyeriana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 111 1899-5-14
A: 00016990 Crataegus moyeriana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 111 1901-5-21
A: 00016991 Crataegus moyeriana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 111 1901-9-23
A: 00017252 Crataegus pumila Sargent USA: Pennsylvania Sellersville: C. D. Fretz 139 1901-5-22
A: 00017254 Crataegus pumila Sargent USA: Pennsylvania Sellersville: C. D. Fretz 139 1903-9-22
A: 00017253 Crataegus pumila Sargent USA: Pennsylvania Sellersville: C. D. Fretz 139 1903-5-22
A: 00016469 Crataegus pygmaea Sargent USA: Pennsylvania Sellersville: C. D. Fretz 161 1905-5-24
GH: 00023488 Crataegus pygmaea Sargent USA: Pennsylvania Sellersville: C. D. Fretz 161 1905-5-24
A: 00017264 Crataegus pygmaea Sargent USA: Pennsylvania Sellersville: C. D. Fretz 161 1905-5-28
A: 00017312 Crataegus rivalis Sargent USA: Pennsylvania Sellersville: C. D. Fretz 28 1899-7-10
A: 00017309 Crataegus rivalis Sargent USA: Pennsylvania Sellersville: C. D. Fretz 113 1899-9-2
A: 00017310 Crataegus rivalis Sargent USA: Pennsylvania Sellersville: C. D. Fretz 24 1899-5-26
A: 00017311 Crataegus rivalis Sargent USA: Pennsylvania Sellersville: C. D. Fretz 8 1881-5-24
A: 00017448 Crataegus ruthiana Sargent USA: Pennsylvania Dunham: C. D. Fretz 150 1901-5-30
A: 00017450 Crataegus ruthiana Sargent USA: Pennsylvania Dunham: C. D. Fretz 150 1901-5-30
A: 00017456 Crataegus saturata Sargent USA: Pennsylvania Sellersville: C. D. Fretz 110
A: 00017374 Crataegus scabriuscula Sargent USA: Pennsylvania Dunham: C. D. Fretz 170 1903-5-9
A: 00017375 Crataegus scabriuscula Sargent USA: Pennsylvania Dunham: C. D. Fretz 170 1903-9-29
A: 00017379 Crataegus schweinitziana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 119 1901-5-28
A: 00017380 Crataegus schweinitziana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 119 1901-9-10
A: 00017381 Crataegus schweinitziana Sargent USA: Pennsylvania Sellersville: C. D. Fretz 119 1899-9-16
A: 00016267 Crataegus stolonifera Sargent USA: Pennsylvania Sellersville: C. D. Fretz 144 1901-5-24