When, however, any one form of Oxalis is fertilised illegitimately with pollen
from the same form, the seedlings appear to belong invariably to this form. Thus
Hildebrand states that long-styled plants of O. rosea growing by themselves have
been propagated in Germany year after year by seed, and have always produced
long-styled plants. (5/6. 'Ueber den Trimorphismus in der Gattung Oxalis:
Monatsberichte der Akad. der Wissen. zu Berlin' 21 June 1866 page 373 and
'Botanische Zeitung' 1871 page 435.) Again, 17 seedlings were raised from mid-
styled plants of O. hedysaroides growing by themselves, and these were all mid-
styled. So that the forms of Oxalis, when illegitimately fertilised with their
own pollen, behave like the long-styled form of Lythrum salicaria, which when
thus fertilised always produced with me long-styled offspring.]
PRIMULA.
Primula Sinensis.
I raised during February 1862, from some long-styled plants illegitimately
fertilised with pollen from the same form, twenty-seven seedlings. These were
all long-styled. They proved fully fertile or even fertile in excess; for ten
flowers, fertilised with pollen from other plants of the same lot, yielded nine
capsules, containing on an average 39.75 seeds, with a maximum in one capsule of
66 seeds. Four other flowers legitimately crossed with pollen from a legitimate
plant, and four flowers on the latter crossed with pollen from the illegitimate
seedlings, yielded seven capsules with an average of 53 seeds, with a maximum of
72.
Pages:
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291