BULLETIN 231] WALNUT CULTURE IN CALIFORNIA. 151 



Mr. James K. Metcalfe, of Silver City, New Mexico, from whom we 

 obtained large and small types of walnuts, native to his locality, writes : 

 ' l We have always considered that trees which bear the larger nuts^ are 

 simply those which grow nearer water. ' ' Subsequent to Mr. Metcalf e 's 

 death, his daughter, Miss Mary Metcalf e, writes: "The trees grow to 

 fair size and then are invariably hollow. They are beautiful landscape 

 trees, 30 to 35 feet in height, diameter 2J feet or a little more. Grow 

 best where they can get down to water." 



These New Mexico walnuts vary largely in size and roughness sim- 

 ilarly to those from Texas. All the trees which we have grown from 

 them have been of the rupestris type with light-grey bark, but varying 

 considerably in size and rapidity of growth. Some of them appear at 

 present as though they might make trees of considerable size, while 

 others bid fair to remain quite small like typical rupestris: We have 

 received nothing from either Texas or New Mexico which at all resem- 

 bles the typical Juglans major received from western Arizona. There 

 is a tree in the Botanical Gardens at Berkeley, on the east side of the 

 walk running across the upper end of the garden to the Mechanics ' 

 Building, which was formerly labeled Juglans rupestris, and which 

 appears to be typical of this species as .we have grown it in the nurs- 

 ery. This tree has a single trunk and axis, but is of small size and 

 slow growth, with the typical light-grey bark, light-colored foliage and 

 leaning position. 



OTHER AMERICAN SPECIES. 



THE BUTTERNUT. 



(Juglans cinerea). 



This well known native nut of the Northeastern United States is 

 not native to California, although a number of specimen trees are to 

 be found in the State, especially on some of the older ranches. There 

 are trees in bearing on the John Wolfskill ranch at Winters, Matthew 

 Wolfskill's in Suisun Valley, George Payne has a tree near San Jose, 

 and there is one in Berkeley on Allston Way, just across from the 

 University cottages, on the lot which corners on the west side of Oxford 

 street. This species is easily identified by its long pointed nuts, the 

 surface of which is covered with high, rough, sharp ridges. It is a 

 tree of slow growth and of no economic importance in California. 



