Harvard University Herbaria & Libraries

Rosaceae
A: 00749995 Crataegus boyntonii Beadle USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 11 1906
A: 00674659 Crataegus chrysocarpa Ashe USA: Massachusetts Billerica: No. [North] Billerica A. I. Emerson 42 1906-5-24
A: 00674660 Crataegus chrysocarpa Ashe USA: Massachusetts Billerica: No. [North] Billerica A. I. Emerson 42 1906-9-17
A: 00683975 Crataegus dissona Sargent USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 49 1906-10-15
A: 00706065 Crataegus forbesiae Sargent USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 38 1906-5-25
A: 00706387 Crataegus macrosperma Ashe USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 30 1906-9-13
A: 00706389 Crataegus macrosperma Ashe USA: Massachusetts Billerica: So. [South] Billerica A. I. Emerson 40 1906-5-24
A: 00706391 Crataegus macrosperma Ashe USA: Massachusetts Billerica: So. [South] Billerica A. I. Emerson 40 1906-1-17
A: 00768188 Crataegus pruinosa (J. C. Wendland) K. Koch USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 8, 2464 1906
A: 00768193 Crataegus pruinosa (J. C. Wendland) K. Koch USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 32 1906-10-15
A: 00768205 Crataegus pruinosa (J. C. Wendland) K. Koch USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 45 1906-6-1
A: 00737905 Crataegus scabrida Sargent USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 41 1906-5-24
A: 00709721 Crataegus submollis Sargent USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 44 1906-9-22
A: 00709728 Crataegus submollis Sargent USA: Massachusetts Chelmsford: Chelmsford A. I. Emerson 48 1906-10-24