INDEX. 
New genera and species in bold-face type; synonyms in italics. 
Abdra brachycarpa, 207 
Abena, 103 
Abesina, 104 
Abronia 
ammophila, 226 
arenaria, 226 
Achomanes 
membranaceum, 104 
Agoseris 
monticola, 37 
glauca, 37 
Aldenella tenuifolia, 212 
Alisma brevipes, 158 
Allocarya 
cognata, 235 
orthocarpa, 235 
Amelanchier 
149 
ipei apu m 149, 150 
Anecio, 103 
Anemone pusilla, 49 
Antennaria 
ee 83 
aprica 
as a 83, 281 
borealis, 85 
284 
Venta 283 
propinqua, 83 
rosea, 81 
solitaria, 281 
sordida, 81 
Arabis 
Albertina, 196 
2 
ula 
eremophila, 194 
Fendleri, 194 
formosa, 198 
gracilenta, 194 
gracilipes, 193 
