Asteraceae GH: 00427071 Eriophyllum lanatum arachnoideum (Fischer, C. A. Meyer & Avé-Lallemant) Jepson USA: California Iaqua J. P. Tracy 8231 1927-7-4
Aulacomniaceae FH: 00522992 Aulacomnium androgynum (Hedwig) Schwägrichen USA: California [data not captured] J. P. Tracy 7840 1927-3-6
Cupressaceae A: 00356490 Chamaecyparis lawsoniana (A. Murray) Parlatore USA: California Willow Creek Canyon J. P. Tracy 7864 1927-3-27
Cyperaceae GH: 00424128 Carex buxbaumii Wahlenberg USA: California Big Lagoon J. P. Tracy 7916 1927-4-23
GH: 00311206 Carex gynodynama Olney USA: California Phillipsville; facing south fork of Eel Rive... J. P. Tracy 7969 1927-5-8
Dicranaceae FH: 00541588 Dicranoweisia cirrata (Hedwig) Lindberg USA: California [data not captured] J. P. Tracy 7839 1927-3-6
Ericaceae GH: 00350765 Arctostaphylos nevadensis A. Gray USA: California Horse Mountain J. P. Tracy 8132 1927-6-12
Hypnaceae FH: 00842081 Hypnum subimponens Lesquereux USA: California [data not captured] J. P. Tracy 7901 1927-4-10
Mniaceae FH: 00848630 Plagiomnium venustum (Mitten) T. J. Koponen USA: California [data not captured] J. P. Tracy 7877 1927-4-2
Plantaginaceae GH: 01802052 Plantago elongata Pursh USA: California [data not captured] J. P. Tracy 8218 1927-6-26
Plumbaginaceae GH: 00376090 Statice arctica californica (Boissier) S. F. Blake USA: California Trinidad J. P. Tracy 8115 1927-6-8
Polemoniaceae GH: 00376090 Armeria maritima californica (Boissier) A. E. Porsild USA: California Trinidad J. P. Tracy 8115 1927-6-8
GH: 00385086 Collomia traceyi H. Mason USA: California Horse Mountain J. P. Tracy 8161 1927-6-12
Pucciniaceae FH: 00951836 Puccinia vagans (de Candolle) Arthur USA: California Horse Mountain (lower slopes) J. P. Tracy 8162 1927-6-12
FH: 00941891 Uromyces minor J. Schröter USA: California At mouth of South Fork of Trinity River J. P. Tracy 8019 1927-5-14
Rosaceae A: 00346796 Amelanchier alnifolia (Nuttall) Nuttall ex M. Roemer USA: California Horse Mountain J. P. Tracy 8140 1927-6-12
A: 01587613 Cercocarpus montanus glaber (S. Watson) F. L. Martin USA: California Trinity River Valley, near the South Fork J. P. Tracy 7897 1927-4-10
Rubiaceae GH: 00385876 Galium bolanderi A. Gray USA: California Trinity River Valley, near the South Fork J. P. Tracy 8043 1927-5-15
Salicaceae GH: 00383643 Salix lasiolepis Bentham USA: California Redwood Creek, at Berry's J. P. Tracy 7885 1927-4-10
GH: 00383691 Salix lasiolepis Bentham USA: California Redwood Creek, at Berry's J. P. Tracy 8305 1927-8-7
GH: 00383692 Salix lasiolepis Bentham USA: California Redwood Creek, at Berry's J. P. Tracy 8305 1927-8-7
GH: 00383693 Salix lasiolepis Bentham USA: California Redwood Creek, at Berry's J. P. Tracy 8306 1927-8-7
Santalaceae GH: 00381611 Comandra umbellata californica (Rydberg) Piehl USA: California Trinity River Valley, near the South Fork J. P. Tracy 8038 1927-5-15
Saxifragaceae GH: 00381162 Micranthes marshallii (Greene) Small USA: California Vicinity of Slayer J. P. Tracy 8011 1927-5-14
A: 00380247 Ribes inerme klamathense (Coville) Jepson USA: California Trinity River Valley, near the South Fork J. P. Tracy 8039 1927-5-15
A: 00380838 Ribes sanguineum Pursh USA: California Horse Mountain, lower slopes J. P. Tracy 8155 1927-6-12
GH: 00381162 Saxifraga marshallii Greene USA: California Vicinity of Slayer J. P. Tracy 8011 1927-5-14
Taxaceae A: 00355472 Taxus brevifolia Nuttall USA: California WILLOW CREEK CANYON. J. P. Tracy 7865 1927-3-27