Asteraceae GH: 00007363  Ageratina rivalis  (Greenman) King & H. Robinson Mexico:  Ixtaccihuatl, 7-8000 ft.   C. A. Purpus 213 1903 
 GH: 00007363  Eupatorium rivale  Greenman Mexico:  Ixtaccihuatl, 7-8000 ft.   C. A. Purpus 213 1903 
 GH: 00007416  Eupatorium vernicosum  Schultz Bipontinus ex Greenman Mexico:  Ixtaccihuatl, 11-12,000 ft.   C. A. Purpus 180 1903 
Brassicaceae GH: 00019457  Romanschulzia australis  (Brandegee) Rollins Mexico:  Ixtaccihuatl   C. A. Purpus  1903-7 
 GH: 00019453  Romanschulzia australis  (Brandegee) Rollins Mexico: México Ixtaccihuatl   C. A. Purpus 304 1903-7 
 GH: 00019453  Thelypodium australe  Brandegee Mexico: México Ixtaccihuatl   C. A. Purpus 304 1903-7 
 GH: 00019457  Thelypodium mexicanum  Brandegee Mexico:  Ixtaccihuatl   C. A. Purpus  1903-7 
Caryophyllaceae GH: 00037628  Arenaria oresbia  Greenman Mexico:  Ixtaccihuatl, alt. 11000-12000 feet   C. A. Purpus 288 1903-7 
 GH: 00037657  Cerastium lithophilum  Greenman Mexico:  Ixtaccihuatl, alt. 12000-14000 feet   C. A. Purpus 231 1903-7 
 GH: 00037659  Cerastium micropetalum  Greenman Mexico:  Ixtaccihuatl   C. A. Purpus 473 1903 
 GH: 00037661  Cerastium purpusii  Greenman Mexico:  Ictaccihuatl: alpine region   C. A. Purpus 472 1903 
 GH: 00037657  Cerastium ramigerum  Bartling Mexico:  Ixtaccihuatl, alt. 12000-14000 feet   C. A. Purpus 231 1903-7 
 GH: 00037659  Cerastium vulcanicum  Schlechtendal Mexico:  Ixtaccihuatl   C. A. Purpus 473 1903 
Crassulaceae GH: 00042486  Echeveria rubromarginata  Rose Mexico: Veracruz    C. A. Purpus  1903-12 
Gentianaceae GH: 00073361  Gentiana perpusilla  Brandegee Mexico: México Wet meadows above timber line, Ixtaccihuatl   C. A. Purpus 302 1903-7 
Hydrophyllaceae GH: 01166068  Nama torynophyllum  Greenman Mexico: Coahuila Peña   C. A. Purpus 124 1903 
Lamiaceae GH: 00001749  Salvia rupicola  Fernald Mexico: Hidalgo Ixmiquilpan:    C. A. Purpus 431 1903 
Onagraceae GH: 00069988  Oenothera deserticola  (Loesener) Munz Mexico:  Ixtaccihuatl, open woods   C. A. Purpus 1839 1903 
 GH: 00069988  Oenothera purpusii  Munz Mexico:  Ixtaccihuatl, open woods   C. A. Purpus 1839 1903 
Orchidaceae GH: 02162691  Galeoglossum tubulosum  (Lindley) Salazar Mexico:  Ixtaccihuatl   C. A. Purpus 80 1903-2 
 AMES: 01983316  Malaxis brachyrrhynchos  (H. G. Reichenbach) Ames Mexico:  Ixtaccihuatl   C. A. Purpus  1903 
 AMES: 01983316  Microstylis fastigiata  H. G. Reichenbach Mexico:  Ixtaccihuatl   C. A. Purpus  1903 
Orobanchaceae GH: 00003244  Castilleja purpusii  Brandegee Mexico:  Rocky slopes above timber line, Ixtaccihuatl   C. A. Purpus 320 1903-7 
Piperaceae GH: 01980400  Piper melastomoides  Schlechtendal & Chamisso Mexico: Veracruz [near Huatusco], [Hacienda] Zacuapan [new na...  C. A. Purpus 6324 1903-3 
Polemoniaceae GH: 00091161  Gilia purpusi  Brandegee Mexico: Coahuila Viesca   C. A. Purpus 132 1903 
 GH: 00091161  Giliastrum purpusii  (Brandegee) J. M. Porter Mexico: Coahuila Viesca   C. A. Purpus 132 1903 
Ranunculaceae GH: 01163122  Ranunculus multicaulis  D. Don ex G. Don Mexico:  [data not captured]   C. A. Purpus 224 1903-3 
Rosaceae A: 00345445  Cercocarpus    USA: California Mt. Whitney, S. Nev. [Sierra Nevada]   C. A. Purpus  1903 
 A: 00345445  Cercocarpus ledifolius  Nuttall USA: California Mt. Whitney, S. Nev. [Sierra Nevada]   C. A. Purpus  1903 
Urticaceae GH: 01221971  Urtica subincisa  Benth. Mexico:  Ixtaccihuatl   C. A. Purpus 192 1903-3