Adiantaceae GH: 02289789 Astrolepis cochisensis (Goodding) D. M. Benham & M. D. Windham USA: Arizona Grand Canyon, Tapeats Creek Canyon, along tr... A. H. Holmgren, N. H. Holmgren, P.... 15622 1971-5-11
Asteraceae GH: 02579098 Acourtia wrightii (A. Gray) Reveal & R. M. King USA: Arizona Colorado River, Grand Canyon near confluence... A. H. Holmgren, N. H. Holmgren, P.... 15607 1971-5-8
Poaceae GH: 01813591 Bothriochloa laguroides torreyana (Steudel) Allred & Gould USA: Arizona at mouth of Saddle Canyon, 47.25 miles below... A. H. Holmgren, N. H. Holmgren, P.... 15584 1971-5-7
GH: 01813679 Bothriochloa saccharoides (Swartz) Rydberg USA: Arizona along Havasu Creek, 2 miles up from the Colo... A. H. Holmgren, N. H. Holmgren, P.... 15651 1971-5-14
