December 9, 1913 a 
CHAENACTIS DouG Last (Hook.) H. & A. 
Rare, Short Pine hills. 
ARTEMISIA AROMATICA A. Nelson.. Fragrant wormwood. 
Abundant everywhere on the plains; much parasitized by 
Orobanche. 
- ARTEMISIA LUDOVICIANA Nutt. 
Rare on 1ocky talus slopes of buttes. 
ARTEMISIA NATRONENSIS A. Nelson 
Plentiful on sandy flood plains and on rough land about 
buttes; not lacking on the steppe. 
SENECIO CANUS PURSHIANUS (Nutt.) A. Nelson. 
Common on the focthills of buttes. 
CARDUUS DAKOTICUS A. Nelson, ined. Dakota thistle. 
Not uncommon in open woods along Little Missouri valley. 
CARDUUS FILIPENDULUS (Engelm.) Rydb. 
Common in forest reserves, occasional on the steppe. 
CARDUUS NEBRASKENSIS Britton 
Not uncommon in open woods of Little Missouri valley. 
CREPIS |; GRAUCAY I. ceG: 
Brooksides in Cave hills and other forest reserves. 
LYGODESMIA ROSTRATA Gray 
Common on sandy stretches along the Grand river. 
TROXIMON GLAUCUM PUMILUM (Nutt.) A. Nelson 
Fairly frequent on the foothills of the Short Pines. 
State University, Vermillion, South Dakota. 
There are two errors in Mr. Parish’s article in the last num- 
ber which should be corrected. On page 57 the paragraph re- 
ferring to Fimdbristylis apus should be omitted. On page 58 
in the third line under the illustration, Mesa Grande, Colorado, 
should be changed to Mesa Grande, California. Ed. 
