16 Forestry Quarterly 



very slow process of reestablishing a forest cover. If there are 

 no seed trees near the burned area, it is only a matter for con- 

 jecture how long it will take a forest to reestabhsh itself. 



One of the important lines of investigation which the Forest 

 Service has undertaken is to assist nature in reclaiming these use- 

 less areas. Planting has been resorted to in favorable localities 

 where the absence of seed trees makes the process of natural 

 regeneration an extremely slow one. It is the purpose of this 

 paper to describe an apparently successful operation in reforesting 

 a brush area of this kind. 



The Lassen National Forest has about 150,000 acres of this 

 brush land and some of it can be seen from the top of any 

 mountain one may choose to climb. The individual areas vary in 

 size from small patches to areas covering as much as half a 

 township. The species are mostly evergreen xerophytes and many 

 of them, or at least close relatives, may be found in the well- 

 known chaparral regions of southern California. A list of the 

 more important species in the order of their abundance follows : 



1. Arctostaphylos glauca — great berried manzanita. 



2. Arctostaphylos manzanita — common manzanita. 



3. Ceanothus velutinus — snowbrush. 



4. Ceanothus cordulatus — whitethorn. 



5. Amelanchier alnifolia — serviceberry. 



6. Ceanothus integerrimus — bruebrush. 



7. Castanopsis chrysophylla minor — chinquapin. 



8. Prunus demissa — chokecherry. 



9. Prunus emarginata — bittercherry. 



10. Cercocarpus ledifolius — curlleaf mahogany. 



11. Cercocarpus parvifolius — birchleaf mahogany. 



12. Ceanothus prostratus — squaw carpet. 



13. Uva-ursi paiilta — dwarf manzanita. 



With the exception of the large sagebrush areas, these species 

 constitute approximately 95 per cent, of the brush areas referred 

 to in this article. The three most important species, which make 

 up most of the large areas, and the per cent, which they repre- 

 sent in these areas are : Manzanita species, 60 per cent. ; snow- 

 brush, 20 per cent. ; whitethorn, 5 per cent. ; all others, 15 per cent. 

 Besides the species enumerated above, there are from 40 to 50 



