23 



Germination in per cent after 

 Seed weight. Purity 5 10 20 days 



190910 18.9 99.2 38 81 89 (-fl) 



191011 19.0 98.8 12 55 73 (-J-4) 



191112 19.0 98.8 2 31 46 (+0) 



The seed does not lose in weight, but the germinating energy falls 

 rapidly; in 1911 12 it had become practically worthless. The 

 great loss of germinating energy at five days is particularly noti- 

 ceable. A similar test with the CORSICAN PINE showed pretty 

 much the same result: 



Germination in per cent after 

 Seed weight Purity 5 10 20 days 



190910 12.7 98.1 17 67 84 



191011 8 45 67 



191112 9 47 64 



Similar behaviour is also shown by PINUS PALLASIANA from 

 the Crimea: 



Germination in per cent after 5 1 23 days 



190405 new seed 80 87 



1907 08 same lot 28 44 



190910 3 8 10 



190910 new seed 48 87 94 



In 5 years the germinating capacity of the seed of 1904 05 sank 

 from 87% to 10%. 



PINUS MONSPELIENSIS SALZM. (Pinus Laricio Pyrenaica) 

 is a species whose name has been changed from time to time, 

 but I believe botanists are now agreed as to its place in the sy- 

 stem as well as its worthlessness for cultivation. 



The seed germinates well as a rule; not once have I had bad 

 seed. The last two samples may quite well be taken as typical: 



Germination in per cent after 5 10 20 days 



190910 68 90 92 



191112 44 77 79 



Several of the following species which are little in demand are 

 treated together, in order to give the seed trade a representation 

 of the most favorable instances of germination; the maximum and 

 minimum figures will be found in the tables. 



