Asteraceae GH: 00417892 Hazardia squarrosa grindelioides (de Candolle) W. D. Clark USA: California Los Angeles: Sister Elsie Peak, San Gabriel ... F. W. Peirson 1918-9-15
Onagraceae GH: 00367767 Epilobium canum (Greene) P. H. Raven USA: California West Fork San Gabriel River F. W. Peirson 280 1918-10-21
GH: 00367769 Epilobium canum (Greene) P. H. Raven USA: California Foot of Echo Mt. trail. San Gabriel Mts. F. W. Peirson 279 1918-10-15
Rhamnaceae GH: 00349645 Ceanothus integerrimus Hooker & Arnott USA: California Toll Road, Mt. Wilson, San Gabriel Range F. W. Peirson 111 1918-5-26
GH: 00349859 Ceanothus oliganthus Nuttall USA: California Toll Road, Mt. Wilson F. W. Peirson 113 1918-7-30
Rosaceae GH: 00345390 Adenostoma fasciculatum Hooker & Arnott USA: California Mt. Wilson Toll Road. F. W. Peirson 78 1918-6-1
GH: 00345029 Holodiscus microphyllus Rydberg USA: California Near Summit "Baldy", Mt. San Antonio. F. W. Peirson 76 1918-8-17
GH: 00346576 Prunus ilicifolia (Nuttall ex Hooker & Arnott) D. N. F. Dietrich USA: California Arroyo Seco, San Gabriel Mts. F. W. Peirson 83 1918-5-21
GH: 00346744 Prunus virginiana demissa (Nuttall) Torrey USA: California Rock Creek, San Gabriel Mts. F. W. Peirson 82 1918-7-17
GH: 00345961 Rosa californica Chamisso & Schlechtendal USA: California San Antonio Canyon, San Gabriel Mts. F. W. Peirson 84 1918-7-9
Salicaceae A: 00382989 Salix hindsiana Bentham USA: California San Antonio Cañon, San Gabriel Mts. F. W. Peirson 14 1918-7-9
A: 00382989 Salix sessilifolia leucodendroides (Rowlee) C. K. Schneider USA: California San Antonio Cañon, San Gabriel Mts. F. W. Peirson 14 1918-7-9
Saxifragaceae GH: 00363354 Heuchera elegans Abrams USA: California Ontario Ridge, near Ontario Peak F. W. Peirson 68 1918-7-7
