80 Richard H. Boerker 
Seedlings from Seeds 
Size, Cm. Small Large 
OFONS Di: Mou eure eee age ane 2 (0) 
OGG Atco ee eee Beers 10 (0) 
DATS TS reese eae aoe Neem Nera 0G/ 6 
TO 22 Opes aeiavacon sao eae se irs 26 14 
PIS aa HAA eee aot ng HOS eT 24 19 
21G= 3 One eine ae ae te ae 25 25 
Pee yh ele cas a es eer nts ae 30 26 
Ee Gear I Oa ater reas RUNS cnn eee aN 23 ait 
71S Remo iis Sah acter a a eS ea 15 17 
AIGASIO marten cco mene abe ie alay tnetaere II 15 
GT = Gu SRG ren siewtt ger soeeataaeas Ae gs Mika pane tees 8 13 
OHO! O Sia eteeacon sap eon cone atone evarortore 4 12 
ORT SONG rere eo tere eer: 2 9 
ONG O ier ten mnertoen Crete corn oricclo ume (0) 8 
GAs a iin Sipe aen eee mais A eae eter e is ES (0) 2 
FE OOO rsa est eee REST I 2 
Sole BrG ee eas oeecnens ecco eemeaee I (0) 
CoH ONO erhnin EMRIs ai ocaa Sue OceG tno I I 
SIRO tall ee, Ss SONS ee ea here Waeta 200 200 
It will be seen that most of the plants from the small seeds fall 
between the limits 0.6 and 5.0 while most of the plants from the 
large seeds fall between the limits 1.6 and 6.0. In other words a 
greater per cent. of small plants were found among the plants 
that germinated from the small seeds. The average difference 
in size of 200 plants of each kind was 0.84 cm. in favor of the 
plants from the large seeds. 
The measurements taken for another climatic variety of Pinus 
ponderosa were as follows: . 
Pinus ponderosa (South Dakota)—Age, 4 Days 
35 seedlings from small seeds averaged .................. 4.6 cm. 
Br seedlings mom langelseeds averageds.. 4. 5.6 cm. 
Here there is a difference of I.0 cm. in favor of the seedlings 
from the large seeds. 
Similar measurements were taken in the case of Pseudotsuga 
taxifolia: 
Pseudotsuga taxifolia (New Mexico)—Age, 4 Days 
100 seedlings from small seeds averaged ................ 3.58 cm. 
100 seedlings from large seeds averaged ................ 4.27 cm. 
