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Johnson, L.A., Gowen, D., Johnson, R.L., Brabazon, H. and Goates, E.D. 2016.

Navarretia crystallina and N. miwukensis (Polemoniaceae): new species endemic to California with affinity for soils derived from pyroclastic deposits

. Phytotaxa. 257, 3 (Apr. 2016), 249–260. DOI:https://doi.org/10.11646/phytotaxa.257.3.3.