42 



The course of germination in some of the best and worst cases 

 was as follows: 



Germination in per cent after 5 10 20 30 days 



The green species 190910 30 61 76 (+ 4) 



191112 38 63 70 72 



189293 7 13 (+60) 



The grey species I 190910 75 92 94 



11190910 18 29 32 



The test result of the green species for 1892 93 does not reflect 

 the real value of the seed, for the result after 30 days 13 % ger- 

 minated plus 60 % sound, but not yet germinated seeds points 

 to the test having been defective. It is not merely an accident, 

 that the two best results with this kind of seed were obtained in 

 the last two years 1909 and 1911 , but here again we have 

 evidence of the improving technique of the Seed-testing Establish- 

 ment. Only once, and that also in the last year, has a good result 

 been obtained with seed of the green species after so little as five 

 days. 



Quite otherwise is the behaviour of the grey species. Even after 

 5 days the germination is as a rule far advanced, and by ten days 

 it is often nearly finished; the bad result of lot II 190910 is quite ex- 

 ceptional. If the reports of the Seed testing Establishment on the 

 course of germination, as already noted, were given after 7, 14, 

 21 instead of 5, 10, 20 days, the seed of the Grey Douglas might 

 well be placed among those the examination of which could be 

 brought to a close after 14 days. This would be an advantage to 

 all concerned. 



PSEUDOTSUGA MACROCARPA. The seed of this species from 

 southern California, which is not frost-hardy in Danmark, is very 

 much larger grained and slower in germinating than that of the 

 other two species. In 1911 12 I had seed from two different col- 

 lectors, and the results of the tests were: 



Germinating' after 

 Seed weight grams 20 30 60 100 days 



Lot I 71.8 2 2 3 15 



II 108.0 1 15 34 (+18) 



THUYA GIGANTEA. The seed germinated regularly and quickly 

 and is mostly of good quality. Only during the first few years, 



