[Vor. 11 
120 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
are found in California and 51 of these have not been collected 
outside of the state. Besides these species native in California, 
16 have been collected in western North America and 3 east of 
the Rocky Mountains. Of the 19 species found in Mexico, 6 are 
limited in their distribution to that country. In South America 
8 species appear, confined almost wholly to the Pacifie Coast 
countries. Of these, only two species have been collected outside 
of Chile and it is of interest that all of them, except M. Bridgesii, 
belong to the section Simiolus. 
Mimulus is not found native in Europe nor in northwestern 
Africa. "Three species have been reported from Asia, 2 of which 
are of wide distribution. М. nepalensis with its center of dis- 
tribution in Japan is also found in China and in India, where it 
has given rise to one distinctive variety. М. Bodinieri, native 
only in southern China, is so closely related to M. nepalensis and 
so variable that there can be little doubt but that it is a relatively 
recent offshoot of that species. Тһе structure of M. sessilifolius, 
а Japanese endemic, suggests close affinity to M. dentatus of the 
Pacific Coast states. Five species of Mimulus are native in 
Australia, of which M. gracilis is widely disseminated and is 
common in Australia, India, and southern Africa. This and the 
nearly allied species, M. madagascariensis, found on the Island of 
Madagascar, are the only members of the genus found in Africa. 
Few of the 114 species besides M. gracilis and M. nepalensis 
have a wide range. М. ringens and M. alatus are common in 
wet places throughout the eastern part of the United States 
from southern Canada to Florida and west to the foothills of the 
Rocky Mountains. М. glabratus with its varieties Fremontii 
and parviflorus is the most widely spread of any species within 
the genus. Тһе northernmost station noted is in Manitoba and 
it is common from there throughout the central United States, 
Mexico, and south into Guatemala: apparently skipping over 
most of Central America, it appears in Colombia, Ecuador, and 
Bolivia and through the variety parviflorus extends its range into 
Chile and Argentina as far south as the 44th parallel. 
_ Although nearly three-fourths of all the species are encountered 
ш western North America, M. guttatus is the only one of these 
having а wide distribution. It is a very polymorphie species, 
