Lehmann, lower, E, 77
Proceedings of the Academy of Natural Sciences of Philadelphia 4(1): 15. 1848. (Proc. Acad. Nat. Sci. Philadelphia
orth. var. as "microtheca"
From IPNI:"Nuttall used the epithet "microtheca" as a noun in apposition," and this spelling is, therfore, grammatically correct." Furthermore, an attempt to overturn the original orthography was not recommended by the Nomenclature Committee for Vascular Plants, Applequist, Taxon 63(6): 1368 (2014).
On the sides of hills in Oregon, east of Walla Walla
Collector and Number:
!Eriogonum microtheca Nutt.