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August 1863 (General Results)

Homomorphic seedlings cowslip-polyanthus.

First seedlings from short-styled Plant.

Plant (1) long-styled

I fertilised heteromorphically 6 flowers with heteromorphic pollen of polyanthus & got

34 seed 0

40 seed good & 0

43 good seed   0

[calculations not transcribed]

I fertilised heteromorphically 5 fl. with pollen of cowslip & got

31 seed very large + a good many large seed but moldy mouldy & cohering to placenta

44 large + — do. — do.— do.

33 rather large

[calculations not transcribed]

These facts would show plant was fertile when crossed heteromorphically with good pollen.—

average production from pollen of cowslip & polyanthus 37.5 per pod.

I fertilised, homomorphically with own-form pollen 10 flower & got

2 miserable seed, wd not grow 0

12 small but pretty good 0

3 m seed & 0

0 0

0 0

These seeds have been sown Aug 24th 1863 (but did not come up.)

This would show extreme sterility— from The Homomorphic unions ought to have produced nearly 2/3 of 36.5 seed. ie 24 seed per capsule

Plant 2) short-styled from short-styled.

I fertilised 3 fl heteromorphically with pollen of polyanthus & two with pollen of cowslip & 7 homomorphically with own-form pollen, but got no good seeds from any; as many bad bad ones from own pollen, as from polyanthus or cowslip— Either this plant naturally quite sterile or tobacco smoke or some cause, or potting, hurt it. —

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Plants fertilised in Spring of 1864

Plant (1) — six flowers were fert. heteromorphically by pollen of other Homomorphic form & they yielded 1 pod with 7 wretched seed. — 20 flowers were fertilised with own pollen & they yielded 4 pods with 3 wretched; with 6 goodish; with 1.; with 5 wretched seed. — average 3.7. —

[calculations not transcribed]

Plant 2. Four flower fert. heteromorph. with hom: pollen & yielded 1 pod with 26 poor seed.—

8 were fert. with own pollen & yielded 1 pod with 23 seed— N.B— many anthers contained no seed— pollen & thus perhaps vitiates to great extent all the heteromorphic unions. — contabescent