DESCRIPTION OF SPECIES 21 



site unfavorable. The best material for planting is from stumps, 

 which, though harder to prepare, will probably be cheapest in the 

 long run. Small twigs are much harder to handle than larger 

 pieces. The cutting should be planted oblique to the ground. 

 Planting material should be taken from full size shoots which are 

 not fully mature. Subsequent careful planting of small numbers 

 of these same bamboos in the early part of the rainy season 

 gave 100 per cent success. 



During the year 1914, blanks in the plantation were filled. 



Bamboo cuttings, at first, send up thin whiplike shoots and 

 it is only after a considerable period that regular culms are 

 produced. The number and size of these culms increases yearly 

 until mature size is reached. 



In Table 1, from a report by Ranger Oro, is given a summary 

 of the height of the culms in December, 1915 ; from this table, 

 it will be seen that in three years some of the culms had reached 

 a height of from 8 to 9 meters, but that most of them were 

 much smaller than this. 



Table 1. — Heights of bamboo clumps at Division of Investigation, Bureau 

 of Forestry, Los Banos, Laguna, P. I., December, 1915, three years 

 after planting. 



[The figures in the table give the number of clumps.] 



Species. 



Height in meters. 



Less 

 than 2. 



2-3. 



! 

 3-4. 1 4-5. 



1 

 1 



5-6. 



6-7. 



13 



1 



7-8. 



! 

 8-9. 



10 



1 

 2 





85 

 11 



59 

 12 



1 



65 27 

 12 6 



1 | 2 



1 



16 

 3 



Bambusa vulgaris 











In Table 2, also from a report by Ranger Oro, is given a 

 summary of the height of the clumps and the diameter of the 

 canes in October, 1917. It will be seen that, five years after 

 the original planting, most of the culms were still small, but 

 26 clumps of Bambusa spinosa, one of B. vulgaris and one of 

 Gigantochloa lev is were between 13 and 15 meters in height 

 and seven of Bambusa spinosa over 15 meters in height. Bam- 

 busa spinosa had produced 80 culms, 7 centimeters in diameter; 

 71, 8 centimeters; 29, 9 centimeters; and 17, 10 centimeters in 

 diameter; while Gigantochloa levis had produced 3 culms, 11 

 centimeters in diameter. The culms of Bambusa vulgaris were 

 smaller, the largest being 8 centimeters in diameter. These 

 figures show that in five years, the planted bamboo had produced 

 some usable culms; and, judging from the difference in the 



