346 



UNIVERSITY OP CALIFORNIA EXPERIMENT STATION. 



and E. viminalis. Here, of E. obliqua four out of twelve trees died from 

 drought, a loss of 33 per cent. Of E. viminalis, ten out of twenty-three 

 perished, a loss of about 43 per cent. E. viminalis suffered, also, on the 

 heavier soil of the upper mesa. Its losses here amount to about 25 pel- 

 cent. No other large trees failed on this level. Evidently, judging 

 from observations during several seasons on different soils and levels, 

 this species is deficient in drought-resisting qualities. This is to be 

 regretted, as its rapidity of growth and moderate toleration of alkali 

 make it otherwise a desirable tree for windbreaks and firewood on the 

 alkaline plains. Trees of E. polyanthema on the upper mesa, planted 

 along the edge of the steep bluff, stopped growing, but held out well 

 and pulled through. 



Miscellaneous Trees. Of the acacias, several small specimens of Acacia 

 melanoxylon died, but the older trees stood the drought well. The same 

 was true of A. decurrens and A. mollisima. A. pycnantha showed more 

 resistance to drought than the other two principal tan-bark wattles; no 

 trees of this species died, and only one or two showed signs of distress. 

 A few camphors (Cinnamomum camphora) have succumbed on the mid- 

 dle mesa. All other trees withstood the drought of 1897-8 excellently. 



EUCALYPTS IN CULTIVATION IN 1899. 



The following list shows the species of eucalypts represented by trees 

 in the station plantations July 1, 1899. It does not include plants 

 still in the nursery: 



EUCALYPTS IN CULTIVATION AT SANTA MONICA, IN 1899. 



E. megacarpa E. Risdonii 



E. melliodora E. robusta 



E. microcorys E. rostrata 



E. Muelleriana E. rudis 



E. obliqua E. .saligna 



E. occidentalis E. siderophloia 



E. occidentalis E. sideroxylon 



var. macrandra var. pallens 



E. paniculata E. sideroxylon 

 E. Planchoniana var. rosea 



E. platypus E. Stuartiana 



E. pipenta E. tereticornis 



E. polyanthema E. tereticornis 

 E. pulverulenta var. latifolia 



var. cinerea E. tetraptera 



E. punctata E. urnigera 



E. resinifera E. viminalis 



.DESCRIPTIVE NOTES ON A FEW SPECIES. 



Eucalyptus corynocalyx, the sugar gum, is well enough known to 

 render detailed description of the tree unnecessary here. It grows 

 rapidly, and when given plenty of room usually branches freely and 

 forms an immense, spreading, leafy crown. It blooms profusely in 

 summer, and is very attractive to bees. Its habit of seeding freely often 

 causes the heavy masses of seed-pods to overweight the branches so that 

 they break easily in a high wind. It may be reckoned, nevertheless, a 

 useful tree for roadside planting, and, also, singly or in groups, for 

 diversifying the landscape on treeless plains. It affords plenty of shade, 

 and its spreading habit and dark, glossy foliage render it a conspicuous 

 and pleasing object in the landscape. The wood is useful and said to 

 be very durable in the ground. 



