. The different forms of flowers on plants of the same species. Plants; Fertilization of plants. 46 HETEROSTYLED DIMORPHIC PLANTS. Chat. I. possible, in all the previous cases, by the manner in which the calculations have been made. Supposing, for instance, that 30 flowers were fertilised legiti- mately and yielded 18 capsules, and that 30 flowers were fertilised illegitimately and yielded 15 cap- sules, we may assume that on an average an equal Table 12. Summary on the Fertility of the two Legitimate Unions, compared with that of the two Illegitimate Unions, in the genus Primula. The former t


. The different forms of flowers on plants of the same species. Plants; Fertilization of plants. 46 HETEROSTYLED DIMORPHIC PLANTS. Chat. I. possible, in all the previous cases, by the manner in which the calculations have been made. Supposing, for instance, that 30 flowers were fertilised legiti- mately and yielded 18 capsules, and that 30 flowers were fertilised illegitimately and yielded 15 cap- sules, we may assume that on an average an equal Table 12. Summary on the Fertility of the two Legitimate Unions, compared with that of the two Illegitimate Unions, in the genus Primula. The former taken at 100. Name of Speelu nlegicimate UnloDB. JadD^d of by the Proportional Number 01 Flowers Trhlcb piodoced Capialea. Jndged of by the Average Namber (or Weight Id Bome cases) of Seeds per Capsule. Primula veris P. elatior . P. vulgaris F. Sinensis " (second trial) " (after Hildebrand) P. auricula (Scott). P. Sikkimensis (Scott) P. cortusoides (Scott) P. involuciata (Scott) P. (Scott) Aveiage of the nine species. 65 „, f (Probably ^^1 too high.) „ f(Probably ^jtKjblow.) 63 53 4S 15 31 66 48 44 proportion of the flowers in both lots would fail to produce capsules from various accidental causes; and the ratio of ^ to ^, or as 100 to 56 (in whole numbers), would show the proportional number of cap- sules due to the two methods of fertilisation; and the number 56 would appear in the left-hand column. 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 Darwin, Charles, 1809-1882. New York, D. Appleton


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1903