36 CONTRIBUTIONS TO WESTERN BOTANY 
Lyrocarpa was founded on L. Coulteri which is ashrub as shown 
by me in 1929, It has been found in western Arizona by others 
than myself near Gila Bend. 
SYSTEMATIC POSITION OF SYNTHLIPSIS, 
the only thing svaileble to keep the genera S:pzrate is the shurp 
und processed edge of Synthlipsis valves in distinction from the 
t 
lirst sight, seem too attenuated to hold. he floral characters 
are substantially the same in Synthlipsis, Greggia, und Dithyrea 
except that the spreading calyx is present only in D 
and not in Californica. Physaria didymocarpa has rather loose 
sepals, but not conspicuously spreading. Rose’s Synthlipsis lep- 
inlota is a Lesquerella, which I would call D. lepidota n.n. A 
meaningless name in this genus for leaves are mostly lepidote. Di- 
thyraa is the most specialized genus In the group because the mar- 
sulare, both Gray and Watson assumed it was neuter because it 
ends in ‘‘cn‘* a common neuter term. This shows the folly of 
men unfamiliar with Latin trying to write Latin names, They 
