. Miscellaneous papers on oenothera. Oenothera; Primroses. I9i6] de vries—dimorphic m u ta n ts 251 on a sufficiently large scale, using the seeds produced by my pure strain of O. la la fertilized by 0. Lamarckiana. The seeds of 1909 gave 564 seedlings, with 18 per cent lala and 2 per cent cana. Those of 1908 gave 1550 seedlings, 8 per cent of which were lata and 9 per. Fig. I.—Oenothera Lamarckiana mut. cana: a young plant showing the narrow leaves by which it is easily distinguished from rosettes of the Lamarckiana type in the same sowings; June 11, igiS- cent were cana. Other mutants appear
. Miscellaneous papers on oenothera. Oenothera; Primroses. I9i6] de vries—dimorphic m u ta n ts 251 on a sufficiently large scale, using the seeds produced by my pure strain of O. la la fertilized by 0. Lamarckiana. The seeds of 1909 gave 564 seedlings, with 18 per cent lala and 2 per cent cana. Those of 1908 gave 1550 seedlings, 8 per cent of which were lata and 9 per. Fig. I.—Oenothera Lamarckiana mut. cana: a young plant showing the narrow leaves by which it is easily distinguished from rosettes of the Lamarckiana type in the same sowings; June 11, igiS- cent were cana. Other mutants appeared in these cultures in different proportions, as usual. Among the seeds of pure 0. Lamarckiana, 0. cana is much the rarer. In 1913 I fertilized, on 5 strong biennial specimens, almost all the flowers during two months and got sufficient seed to have 20,000 seedlings in 1914. Of these only 6 were cana, giving a per- centage of per cent. In the same boxes 7 rubrinervis and 5. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Vries, Hugo de, 1848-1935. Berlin, Leipzig, etc. , etc.
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Keywords: ., bookauthorvrieshug, bookcentury1900, bookdecade1900, bookyear1902
