400 BOTANICAL GAZETTE 2 ae 
with broad leaves, a low stature, and weak constitution, and with 
stems without preparatory rosettes. Among the remaining plants 
6 and 8 were intermediate between the two parents, with stout, 
sparely branched stems and dark green leaves of an intermediate 
form. Besides these there was one lorea. All of these plants 
flowered in August, and showed in their flowers intermediate char- 
acters; but I have not continued the experiment. 
D. FIRST GENERATION OF CROSSES WITH LAMARCKIANA 
Both O. grandiflora and O. Lamarckiana produce twin hybrids 
in a number of crosses. If they are fertilized among themselves, 
therefore, combinations of these twins may be expected. Moreover, 
it is known that from crossed seeds and from seeds of hybrids the 
same mutations may arise as from the parent species. In this way 
I observed two hybrids with the characters of gigas, some with those 
of the dwarfs, and a third type of doubtful relations. These 
mutants ‘are rare, however, whereas the products of the splitting 
were observed in all my experiments. 
For my crosses I have not only used the two species themselves, 
but also one of the mutants of each of them, O. Lamarckiana nanella 
and O. grandiflora lorea. Their special characters were latent in the 
first generation, and the results of their crosses were identical with 
those of the species. They simply give a confirmation of the main 
result. This consisted in the appearance of three types, which it 
seems desirable to distinguish by special names. I shall call these 
triple hybrids ovata, lutea, and brunnea, in connection with their most 
striking features. The mutant previously mentioned, for which I 
have not succeeded in studying the identity with one of the mutants 
of the parents, I shall call, for convenience, coniraria. It seems 
destined to play only a subordinate réle in the discussion concerning 
the splitting which produces the triple hybrids. 
. hybr. ovata is seen almost always in the largest numbers. It 
is stout and richly branched, with broad leaves of pure green and 
dense spikes of large flowers. In spring it makes a large rosette, 
like those of O. Lamarckiana, and from its center produces a vigor- 
ous stem in June. The foliage is that of O. grandiflora, and the 
leaves in the middle part of the stem are hairy, show some bubbles, 
