Erysiphaceae FH: 01122188 Erysiphe extensa (Cooke & Peck) U. Braun & S. Takamatsu USA: California Palo Alto: Jasper Ridge, Stanford University L. Bonar 1923-9-30
FH: 01122188 Microsphaera alni extensa (Cooke & Peck) E. S. Salmon USA: California Palo Alto: Jasper Ridge, Stanford University L. Bonar 1923-9-30
FH: 01122188 Microsphaera extensa Cooke & Peck USA: California Palo Alto: Jasper Ridge, Stanford University L. Bonar 1923-9-30
Hydnaceae FH: 00570309 Hydnum repandum Linnaeus: Fries USA: Colorado [data not captured] L. Bonar s.n. 1923-8-2
Melampsoraceae FH: 00806793 Cronartium occidentale Hedgcock, Bethel & N. R. Hunt USA: Colorado Queen's Canyon, Manitou L. Bonar 1923-8-7
FH: 00806794 Cronartium occidentale Hedgcock, Bethel & N. R. Hunt USA: Colorado Manitou L. Bonar 1923-8-7
FH: 00806795 Cronartium occidentale Hedgcock, Bethel & N. R. Hunt USA: Colorado Manitou L. Bonar 1923-8-7
FH: 00806831 Cronartium quercuum (Berkeley) Miyabe ex Shirai USA: California Lake San Andreas L. Bonar 1923-4-15
FH: 00990457 Melampsora monticola Mains USA: California Mather L. Bonar 1923-7-8
FH: 00995289 Melampsorella cerastii (Persoon) J. Schröter USA: Colorado Barr Trail, Pikes Peak L. Bonar 1923-8-2
FH: 00956700 Pucciniastrum goeppertianum (J. G. Kühn) Klebahn USA: California Marin County water reserve L. Bonar 1923-1-20
FH: 01004716 Uredo sphacelicola Dietel & Holway USA: California Mount Tamalpais L. Bonar 1923-5-20
Polyporaceae FH: 00482251 Coriolellus sepium (Berkeley) Murrill USA: California [data not captured] L. Bonar s.n. 1923-2-22
Pucciniaceae FH: 00990984 Nyssopsora echinata (Léveillé) Arthur USA: California Berkeley: W. of Cal. campus L. Bonar 1923-3-9
FH: 00976613 Phragmidium occidentale Arthur USA: Colorado Minnehaha, Manitou L. Bonar 1923-7-7
FH: 00976686 Phragmidium potentillae (Persoon) P. Karsten USA: Colorado Colorado Springs: Cragmoor, Colorado Springs L. Bonar 1923-7-4
FH: 00991954 Puccinia cirsii Lasch USA: California Oakland: Oakland Hills L. Bonar 1923-1-7
FH: 00949217 Puccinia rubigo-vera (de Candolle) Winter, G. USA: Colorado Colorado Springs: Cragmoor L. Bonar 1923-7-4
FH: 00949217 Puccinia rubigo-vera agropyri (Eriksson) Arthur USA: Colorado Colorado Springs: Cragmoor L. Bonar 1923-7-4
FH: 01125055 Uromyces betae (Persoon) J. Kickx f.: Persoon USA: California Oakland: Oakland Hills L. Bonar 1923-1-7
FH: 00941776 Uromyces lupini Berkeley & M. A. Curtis USA: California San Francisco: Golden Gate Park L. Bonar 1923-1-5
FH: 01108223 Uromyces zigadeni Peck USA: California Lake San Andreas L. Bonar 1923-4-15