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Updated: June 2, 2025
Even this time I did not succeed in getting them strong enough to keep through the winter. Besides these, two new types were observed, completing the range of all that have since been recorded to regularly occur in this family. They were scintillans and gigas. The first was obtained in the way just described.
If there had been any visible preparation towards the coming mutation, it could not have escaped observation. Moreover, if visible preparation were the rule, it could hardly go on at the same time and in the same individuals in five or six diverging directions, producing from one parent, gigas and nanella, lata and rubrinervis, oblonga and albida and even scintillans.
The unevenness of the surface of the leaves may increase as in lata, or decrease as in laevifolia. The tendency to become annual prevails in rubrinervis, but gigas tends to become biennial. Some are rich in pollen, while scintillans is poor. Some have large seeds, others small. Lata has become pistillate, while brevistylis has nearly lost the faculty to produce seeds.
Oblonga was observed at times to constitute as much as 1% or more of the sowings of scintillans, while lata and nanella were commonly seen only in a few scattering individuals, although seldom lacking in experiments of a sufficient size. Secondly the instability seems to be a constant quality, although the words themselves are at first sight, contradictory.
Albida, nanella and rubrinervis appeared in large numbers, and even scintillans, of which I had but a single plant in the previous generation, was repeated sixfold. New forms did not arise, and the capacity of my strain seemed exhausted.
No observations were made as to their origin, and seeds have only been sown from later generations. But these have yielded uniform crops, thereby showing that there is no ground for the assumption that these two older varieties might behave otherwise than the more recent derivatives. Scintillans and elliptica constitute exceptions to the rule given.
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