Try to make your search as simple as possible:
Aeria will find all items including that sequence of letters.
Search results for "Aeria":
"Aeria attenuata" - Gaussia attenuata
"Baeria burkei" - Lasthenia burkei
"Baeria macrantha" - Lasthenia californica ssp macrantha
"Blaeria flava" - Erica equisetifolia