1924] 
GRANT—A MONOGRAPH OF THE GENUS MIMULUS 147 
Specimens examined: 
. Chile: Chile, without date, Styles (Phil.). 
The plants of this species are commonly called "placa" in 
Chile and the more succulent, tender-leaved ones are eaten either 
as а salad or cooked in soup. 
M. luteus was first collected by Father Feuillee along a river 
bank in Conception, Chile, about 1714. Не described and 
pictured it as “Gratiola foliis subrotundus, nervosis, floribus lu- 
teus,” and, so far as known, no specimens were made nor seeds 
sent to Europe. Linnaeus referred to Feuillee's description and 
plate when he transferred the yellow-flowered plant to the genus 
Mimulus and nothing more was known of it for some time. 
Langsdorff, early in the next century, sent some seed from 
Unalaska; plants from these were named M. guttatus by Fischer 
іп 1812. De Candolle took up this name in 1813, fully describ- 
ing the species and noting some of its differences from M. 
luteus. Other botanists, however, did not agree with this view 
and believed that the plants from North America and those ріс- 
tured by Feuillee were conspecific. Several years later, seeds were 
sent from South America by various collectors so that it was 
possible to distinguish the M. luteus of Feuillee from the yellow- 
flowered North American Mimulus that had been confused with it. 
M. luteus resembles M. guttatus rather closely, but can be separ- 
ated from it, in general, by its creeping habit, its fewer flowers 
with pedicels 3 or more times longer than the calyx, its mostly 
glabrous condition, and its more open corolla with a relatively 
harrow tube. The throat in M. guttatus is nearly closed by the 
two hairy ridges running down the lower side, whereas the throat 
In M. luteus is wide open. ; 
This species, like its North American relative, is polymorphic 
and several varieties and species have been described, dependent 
Оп the color and the number and size of the spots, if present, on 
the lobes of the corolla. More material for study as to differences 
or intergradations might modify one's concept of the group as а 
Whole, but, after examining the specimens available, it seems 
t to keep the following as varieties. 
