FH: 00418568 Arthonia punctiformis Acharius USA: California [data not captured] I. M. Johnston 1918
FH: 00394191 Dermatocarpon Eschweiler USA: California [data not captured] I. M. Johnston 3160 1918-11-17
FH: 00394252 Dermatocarpon Eschweiler USA: California [data not captured] I. M. Johnston 1918-11-24
FH: 00394379 Dermatocarpon miniatum (Linnaeus) W. Mann USA: California [data not captured] I. M. Johnston 1918-11-24
FH: 00394508 Dermatocarpon miniatum complicatum (Lightfoot) Th. Fries USA: California [data not captured] I. M. Johnston 1918-11-24
FH: 00394191 Dermatocarpon sp. USA: California [data not captured] I. M. Johnston 3160 1918-11-17
FH: 00394252 Dermatocarpon sp. USA: California [data not captured] I. M. Johnston 1918-11-24
FH: 00394965 Diploschistes scruposus (Schreber) Norman USA: California [data not captured] I. M. Johnston 3163 1918-11-17
FH: 00394966 Diploschistes scruposus (Schreber) Norman USA: California [data not captured] I. M. Johnston 1918-11-17
FH: 00438667 Lecania brunonis (Tuckerman) Herre USA: California [data not captured] I. M. Johnston 1918
FH: 00468096 Parmelina coleae Argüello & A. Crespo USA: California [data not captured] I. M. Johnston 1918
FH: 00491012 Tephromela atra (Hudson) Hafellner USA: California [data not captured] I. M. Johnston 1918
FH: 00491016 Tephromela atra (Hudson) Hafellner USA: California [data not captured] I. M. Johnston 1918-11-10
FH: 00494436 Verrucaria rupestris Schrader USA: California [data not captured] I. M. Johnston 1918
Acarosporaceae FH: 00302599 Acarospora chlorophana (Wahlenberg) A. Massalongo USA: California So. California, San Antonio Mts., Evey Canon I. M. Johnston 1918-12-1
FH: 00302587 Acarospora fuscata (Schrader) Arnold USA: California Upper Sonoran, Sunset Peak, San Antonio Mts. I. M. Johnston 1918-11-17
FH: 00197648 Acarospora socialis H. Magnusson USA: California Hills south of Pomona I. M. Johnston 1918-9-6
FH: 00197648 Acarospora sp. USA: California Hills south of Pomona I. M. Johnston 1918-9-6
FH: 00302587 Acarospora sp. USA: California Upper Sonoran, Sunset Peak, San Antonio Mts. I. M. Johnston 1918-11-17
FH: 00302599 Pleopsidium flavum (Bellardi) Körber USA: California So. California, San Antonio Mts., Evey Canon I. M. Johnston 1918-12-1
FH: 00474114 Pleopsidium flavum (Bellardi) Körber USA: California [data not captured] I. M. Johnston 1918
Asteraceae GH: 00427640 Packera ionophylla (Greene) W. A. Weber & A. Löve USA: California Coldwater Fork, Lytle Creek, San Antonio Mou... I. M. Johnston 2076 1918-7-5
GH: 00427644 Packera ionophylla (Greene) W. A. Weber & A. Löve USA: California Cascade Cañon (Fork of San Antonio Cañon),... I. M. Johnston 2043 1918-6-23
Boraginaceae GH: 00424613 Amsinckia douglasiana de Candolle USA: California Lone Hill south of Glendora I. M. Johnston 1833 1918-4-11
GH: 00403929 Amsinckia eastwoodiae J. F. Macbride USA: California Red Hill east of Upland I. M. Johnston 1836 1918-4-14
GH: 01956482 Amsinckia intermedia Fischer & C. A. Meyer USA: California Red Hill east of Upland I. M. Johnston 1838 1918-4-14
GH: 01956518 Amsinckia intermedia Fischer & C. A. Meyer USA: California Temescal Canon (near Lee Lake) I. M. Johnston 876 1918-5-30
GH: 00093843 Amsinckia johnstonii Suksdorf USA: California Red Hill near Upland I. M. Johnston 1872 1918-4-25
GH: 01956769 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California Lane Hill south of Glendora I. M. Johnston 1834 1918-4-11
GH: 01956775 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California Red Hill east of Upland I. M. Johnston 1835 1918-4-14
GH: 01956776 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California Red Hill near Upland I. M. Johnston 1870 1918-4-25
GH: 00424613 Amsinckia sp. USA: California Lone Hill south of Glendora I. M. Johnston 1833 1918-4-11
GH: 00096051 Cryptantha intermedia johnstonii J. F. Macbride USA: California Claremont: I. M. Johnston 1938 1918-5-15
Brassicaceae GH: 00948397 Boechera sparsiflora (Nuttall) Dorn USA: California San Antonio Canon (Camp Larkin) I. M. Johnston 1956 1918-5-12
GH: 00948402 Boechera sparsiflora (Nuttall) Dorn USA: California N. Fk. San Antonio Canon I. M. Johnston 1951 1918-5-12
Caloplacaceae FH: 00302495 Caloplaca biatorina (A. Massalongo) J. Steiner USA: California Cucamonga Canon, San Antonio Mts. I. M. Johnston 1918-11-10
FH: 00302495 Caloplaca murorum (Hoffmann) Th. Fries USA: California Cucamonga Canon, San Antonio Mts. I. M. Johnston 1918-11-10
FH: 00302495 Caloplaca saxicola (Hoffmann) Nordin USA: California Cucamonga Canon, San Antonio Mts. I. M. Johnston 1918-11-10
Catillariaceae FH: 00491534 Toninia squarrosa (Acharius) Th. Fries USA: California [data not captured] I. M. Johnston 1918-12-15
Collemataceae FH: 00393108 Collema fasciculare (Linnaeus) Weber ex F. H. Wiggers USA: California [data not captured] I. M. Johnston 1918
FH: 00393290 Collema nigrescens (Hudson) de Candolle USA: California [data not captured] I. M. Johnston 3151 1918-11-10
FH: 00393291 Collema nigrescens (Hudson) de Candolle USA: California [data not captured] I. M. Johnston 3151 1918-11-10
Euphorbiaceae A: 00347431 Tetracoccus dioicus Parry USA: California Red Mt. near Fall brook I. M. Johnston 1868 1918-4-27
GH: 00347434 Tetracoccus dioicus Parry USA: California Red Hill, near Fall Brook I. M. Johnston 1868 1918-4-27
Fabaceae GH: 00366954 Lupinus elatus I. M. Johnston USA: California Southspur of Cucamonga peak I. M. Johnston 2063 1918-6-30
GH: 00369035 Lupinus longifolius (S. Watson) Abrams USA: California Puente Hills, Trunbull Canon I. M. Johnston 1896 1918-5-5
GH: 00369037 Lupinus longifolius (S. Watson) Abrams USA: California back of Laguna Beach, San Joaquin I. M. Johnston 1897 1918-5-4
GH: 02347497 Vicia villosa Roth USA: California [data not captured] I. M. Johnston 1918-6
Hydnangiaceae FH: 00416066 Arcangeliella behrii (Harkness) Zeller & C. W. Dodge USA: California Cucamonga Canyon, San Antonio Mountains I. M. Johnston 219 1918-11-10
Lamiaceae GH: 00400625 Monardella saxicola I. M. Johnston USA: California South spur of Cucamonga Peak, San Antonio Mo... I. M. Johnston 2050 1918-6-30
Lecanoraceae FH: 00372910 Lecanora caesiorubella merrillii Imshaug & Brodo USA: California [data not captured] I. M. Johnston 1918
FH: 00372949 Lecanora carpinea (Linnaeus) Vainio USA: California [data not captured] I. M. Johnston 1918-11-24
FH: 00451550 Lecanora pacifica Tuckerman USA: California [data not captured] I. M. Johnston 1918
Lecideaceae FH: 00452342 Lecidea antoniensis H. Magnusson USA: California [data not captured] I. M. Johnston 1918-11-17
FH: 00452388 Lecidea sp. USA: California [data not captured] I. M. Johnston 1918-11-24
Malvaceae GH: 00385011 Sphaeralcea emoryi variabilis (Cockerell) Kearney USA: California Upland I. M. Johnston 1936 1918-5-19
Massalongiaceae FH: 00302986 Leptochidium albociliatum (Desmazières) M. Choisy USA: California San Antonio Mts., Sunset Peak I. M. Johnston 3164 1918-11-17
Ochrolechiaceae FH: 00455623 Ochrolechia pallescens (Linnaeus) A. Massalongo USA: California [data not captured] I. M. Johnston 1918
Oleaceae A: 00401251 Fraxinus latifolia Bentham USA: California San Gabriel River at El Monte I. M. Johnston 2097 1918-7-28
A: 00401251 Fraxinus oregona Nuttall USA: California San Gabriel River at El Monte I. M. Johnston 2097 1918-7-28
Onagraceae GH: 01625750 Camissonia ignota (Jepson) P. H. Raven USA: California near Corona I. M. Johnston 1875 1918-4-27
Parmeliaceae FH: 00438892 Kaernefeltia merrillii (Du Rietz) A. Thell & Goward USA: California [data not captured] I. M. Johnston 1918-11-28
FH: 00453868 Melanelixia glabra (Schaerer) O. Blanco, A. Crespo, P. K. Divakar, Esslinger, D. Hawksworth & Lumbsch USA: California [data not captured] I. M. Johnston 1918
Physciaceae FH: 00450159 Heterodermia erinacea (Acharius) W. A. Weber USA: California [data not captured] I. M. Johnston 1918
FH: 00450161 Heterodermia erinacea (Acharius) W. A. Weber USA: California [data not captured] I. M. Johnston 1918-9-6
FH: 00450244 Heterodermia hypoleuca (Muhlenberg) Trevisan USA: California [data not captured] I. M. Johnston 1918-11-25
Primulaceae GH: 00424234 Dodecatheon redolens (H. M. Hall) H. J. Thompson USA: California Prairie Fork, San Gabriel River I. M. Johnston 2100 1918-7-6
Psoraceae FH: 00474948 Psora californica Timdal USA: California [data not captured] I. M. Johnston 1918-11-28
FH: 00474963 Psora californica Timdal USA: California [data not captured] I. M. Johnston 1918-12-15
FH: 00474964 Psora californica Timdal USA: California [data not captured] I. M. Johnston 1918
FH: 00475124 Psora nipponica (Zahlbruckner) Gotth. Schneider USA: California [data not captured] I. M. Johnston 1918-12-15
Rhamnaceae A: 00425473 Ceanothus tomentosus Parry USA: California "Red Mtn. Grade" near Fallbrook I. M. Johnston 1874 1918-4-27
Rosaceae A: 00345928 Rosa californica Chamisso & Schlechtendal USA: California Near Upland (Red Hill) I. M. Johnston 2128 1918-8-25
A: 00366046 Rosa sp. USA: California Between Redlands & Yucarpa I. M. Johnston 7120 1918-8-20
Rubiaceae GH: 00092744 Galium hallii Munz & I. M. Johnston USA: California San Antonio Mountains, Coldwater Fork Lytle ... I. M. Johnston 2067 1918-7-7
Salicaceae A: 00382850 Salix gooddingii C. R. Ball USA: California Lake Elsenore I. M. Johnston 1918-5-30
A: 00382990 Salix hindsiana Bentham USA: California Santa Ana river, n.w. of Corona I. M. Johnston 1994 1918-5-26
A: 00382991 Salix hindsiana Bentham USA: California Temescal Canyon I. M. Johnston 1217 1918-5-30
A: 00383331 Salix laevigata Bebb USA: California Temescal Cañon I. M. Johnston 1918-5-30
A: 00383355 Salix laevigata araquipa (Jepson) C. R. Ball USA: California Chiro Creek, south of Ontario I. M. Johnston 1918-5-26
A: 00383355 Salix laevigata araquipa Jepson USA: California Chiro Creek, south of Ontario I. M. Johnston 1918-5-26
A: 00384292 Salix melanopsis bolanderiana (Rowlee) C. K. Schneider USA: California San Antonio Mts., San Antonio Canyon I. M. Johnston 2087 1918-7-5
A: 00382990 Salix sessilifolia leucodendroides (Rowlee) C. K. Schneider USA: California Santa Ana river, n.w. of Corona I. M. Johnston 1994 1918-5-26
A: 00382991 Salix sessilifolia leucodendroides (Rowlee) C. K. Schneider USA: California Temescal Canyon I. M. Johnston 1217 1918-5-30
Solanaceae GH: 00402541 Lycium andersonii A. Gray USA: California Elsinore I. M. Johnston 2028 1918-5-30
Verrucariaceae FH: 00473400 Placidium squamulosum (Acharius) Breuss USA: California [data not captured] I. M. Johnston 1918-11-14
FH: 00473401 Placidium squamulosum (Acharius) Breuss USA: California [data not captured] I. M. Johnston 1918-9-6
FH: 00473402 Placidium squamulosum (Acharius) Breuss USA: California [data not captured] I. M. Johnston 1918-9-6