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24 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
The trees of the two regions, the northern and the southern, 
differ somewhat. <All fruits from southern trees which have 
come to me are small, about 3-4 to 1 1-4 inches in diameter. 
The fruits of the northern trees are larger, about 1 1-4 to 1 1-2 
inches in diameter. The two forms also appear to differ some- 
what in foliage, the northern trees having longer and broader 
leaflets. In the south there are two habital states; an arbore- 
ous form in creek bottoms or on banks, and a bushy several- 
stemmed form on canon sides. In the north there is only the 
bottom-land arboreous form. 
Watson published Juglans Californica in the Proceedings of 
the American Academy of Arts of Sciences, vol. 10, p. 349, 
1s75. He includes in this species the var. major Torrey of 
Juglans rupestris Torrey, which extends from Arizona to Tex- 
as. Excluding this form and limiting Juglans Californica to 
California it is to be decided which Californian form, the north- 
ern or southern, is to be taken as the type. Of California ma- 
terial Watson had before him Brewer, no. 65, Sierra Santa 
Monica and Torrey, 1865, Santa Barbara county, and appar- 
ently no northern material. Moreover, I think it is evident 
from a close analysis of the first description that the southern 
form must be taken as the type Watson had in mind; the first 
locality indication, “*vicinity of San Francisco,’’ being only 
a parenthetical reference to size. In any event, if one must 
spht hairs, he puts first the term ‘“‘shrub’’ which must refer to 
the southern form. 
The northern form was discovered much earlier than the 
southern form, having been found on the lower Sacramento 
by the Sulphur Expedition of 1837. It may then be known as 
yar. Hindsii Jepson, n. var., the botanist of the Sulphur, Rich- 
ard Brinsley Hinds, being the first discoverer of the California 
Walnut. 
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