404 BOTANICAL GAZETTE [cay 
O. grandiflora loreaX Lamarckiana (cross of 1914).—In July I 
had on the bed 10 ovata, 12 lutea, 8 brunnea, and 3 doubtful ones, 
and in the box 25 ovata, 9 lutea, and 6 brunnea. All of the first and 
the larger part of the second culture were annual. I retained only 
those on the bed and controlled their numbers during August, when 
they flowered, and then found that the doubtful specimens belonged 
to the type of contraria. One specimen of each type has been fer- 
tilized and has yielded a second generation in 1916. 
TABLE V 
O. grandifloraXO. Lamarckiana AND DERIVATIVES; FIRST GENERATION 
TRIPLE HYBRIDS MutTANTS 
® 
Cross gat || Peat 
ovata | lutea |brunnea traria | 21845 
O. grandiflora Lamarckiana| 1915 12 7 8 3 ° 3° 
Q. = — asin lorea X La- 
MATCKIONA oe ae IQI5 10 12 8 3 ° 33 
oO. grandifiors lorea X La- 
PON eo te 1916 29 13 17- ) I ‘60 
O. primers tee Xgrandiflora} 1915 22 3 € fc) 3° 
arckiana X grandiflora 
Sore Meee aman spate IQI5 21 4 5 ° ° 39 
O. grandiflora Xnanella..... 1914 35 12 7 ° ° 54 
O. grandiflora Xnanella..... 1915 II 2 6 9 I 29 
O. grandiflora phon pai 1915 23 2 5 ° ° 3° 
O. grandiflora loreaXnanella| 1916 22 25 13 ° ° 60 
Tesh ae aS 185 80 74 15 2 | 356 
i nae Re ie he, en A ak g2 23 21 A Bian helen BE Ae Ws 
A second cross was made in 1915, with the second generation of 
lorea. The culture embraced 60 plants, almost all of which 
flowered, and which could easily be counted in August. No con- 
traria was observed during the period of flowering, but a mutant 
gigas appeared, as has been described. I repeated the counting of 
this group at different periods, in order to be sure that the same 
figures were obtained. The plants reached a height of 1. 5m. about 
the middle of August. 
O. Lamarckiana X grandiflora (cross of 1913).—Seeds sown in 
1915, after a first trialin 1914. Besides the plants mentioned in the 
table, I had another set, which contained some brunnea but no 
lutea; it was thrown away in July. The plants on the bed flower ed 
in August. 
