40 Early Botanical Explorers on the Pacific Coast 
the years 1836-42 under the command of Sir Edward Belcher. 39 
It was late in the autumn of 1837 when an expedition up the Rio Sacra¬ 
mento penetrated from San Francisco to some distance into the interior. 
... Occasional clumps of fine oaks and planes imparted an appearance of 
park land. They were already shedding their leaves; a small grape was 
very abundant on the banks, and we sometimes obtained a dessert from the 
fruit of a juglans. 40 
The next reference is that of Torrey in the Botany of the Mex¬ 
ican Boundary Survey, where he mentions a Juglans in flower 
which was found by Dr. Parry at San Fernando beyond Los An¬ 
geles. 41 Sereno Watson named the walnut, Juglans calif ornica y 
and stated that it ranges from San Francisco to Southern Cali¬ 
fornia. 42 Willis L. Jepson has separated the northern from the 
southern form, giving the former the name Juglans Hindsii y and 
restricting the latter to J. californicaf* 
Notes will be found on pages 43 to 48. 
