[67]

July 1863 Primrose crossed by Cowslips & Polyanthus

Long-styled Primrose By pollen of Cowslip (Long-styled) Heteromorphically 3 flowers crossed (white silk) 0	Long-styled Primrose By pollen of Polyanthus Long-styled H — Heteromorphically 5 flowers crossed (white thread) 22 finer seeds 31 do.
Homomorphically 3 flowers Black silk 13 7 small & poor	Homomorphically 5 flowers (black thread) 0
(Short-styled) Heteromorphically 3 flowers white silk 52 moderately good 50 do 40 do 0 Homomorphically Black silk 3 flower 22 0	(Short-styled) Heteromorphically 4 flowers White thread 28 very fine seeds 0 0 0 0 Homomorphically Black thr 4 flowers Black thr 18 20 12} splendid seed 0 0 These produced six plants
All together Heteromorphically [data not transcribed] average seed per pod 37.1	All together Homomorphically [data not transcribed] average seed per pod 13.0

/over

[67v]

There is chance that the short-styled may not be true; as it is difficult to castrated perfectly.

But I think experiment may be trusted as I find that no pods set naturally, except 2 on a half-monstrous plant which produced separated styles. —

There is no clear difference between Polyanthus & cowslip pollen. Perhaps cowslip pollen more effective —

The Results are oddly fluctuating as occurs with Hybrids so often.

If the crosses all true (if not accidentally crossed with own Primrose seed) then short-styled are more fertile with pollen of Cowslip & Polyanthus than long-styled,— for of latter 16 fl crossed produced 4 capsules, whereas 14 short-styled produced 6 capsules richer in seed—

[68]

Primrose crossed by Cowslip & Polyanthus

Bag 12 Long-styled Primrose

Black thread no pod + 4 Black thread.

Black silk 13 pod green seeds

do 7 green but longer

White thread 22 finer seed

do 31 do

1 Black silk 0

3 White silk 0

2 White thread 0

Bag 14 short-styled & 13

White silk 52. moderate greenish

Black do no pod

White silk 50

do 40

White thread 28 — real fine seeds

Black thread 20

do 12 splendid seed

2 Black Th 0

2 White Th 0

1 Black silk 0

Thread Polyanthus

Silk Cowslip.

Monstrous Plant 15 bore 2 wretched pods unfertilised

[68v]

[calculations not transcribed]

12 sh by artifi

16 sh Het say self — 4 capsules

14 sh. shortstyl — 6 capsule—

[69]

July 1863 Primrose crossed by

Long-styled Cowslip Heteromorphic Polyanthus Heteromorphically

(All Used)

[data not transcribed]

It is clear from other paper that Heteromorphic union more fertile than Homomorphic.