Original Linnaean Dissertations
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Lidén Number 114
Respondent: Henrik Ullmark (1740-1771)
Title: Prolepsis Plantarum, ...
Date of Defense: 22 December 1760
Paginations: [iv], [1], 2-22
Lidén Title: Prolepsis plantarum.
Soulsby Title: Prol. pl. 1760
Drake Title: Prolepsis Plantarum.
Note:
Abstract: An essay on the ontogeny of the flower, from time of bud initiation to anthesis. Linnaeus conceived the flower bud, the reproduction unit of higher plants, to be analagous with animal sexual anatomy, and held that for trees, six years were required for complete bud formation. Without supporting evidence, he adduced that in the first year medullary and cortical material are produced; in the second, the bud scales are formed; in the third, the floral cup of perianth; in the fourth, the petals; in the fifth, the stamens; and in the sixth, the pistil (gynoecium). Includes a dedication by Adam Kuhn, Linnaeus' only pupil from America.