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Bartonia aurea

Try a little more seed

12 flowers crossed — 18 flowers self-fert.

The 12 crossed set 11 pods (ie 92 per cent) & all the seed weighed 5.27 gr

The 18 self set 15 pods (ie 83 per cent) & all the seed weighed 6.76

Therefor 15 pods of crossed would have weighed 7.18 grain, or the crossed seed to the self seed are as 100 : 94. —

In all cases when number of seed estimated by weight, as self seed are generally lighter, their number ought wd be rather greater; probably in this instance the proportion wd be as as 100 : 95.

The seed of the Bartonia looks so shrivelled that perhaps will not germinate.— (The self- seeds on sand germinated best & quickest.)

(May 24. 68 — Plants about 7 inches selfs have the advantage)

(June 14th Pot. II. self- flowered first.)

(July 6. 68 Plants now in full flower. — Only 2 Pots alive

Tallest Plant on each side measured.

Pot 2.	Crossed—	— Self
	31 inch	37 inches
Pot 4.	18 1/2	20 1/2

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Bartonia aurea A fresh set of crosses 1868

6 flowers twice crossed by self-produced 4 pods & these contained by eye rather more seed than the best of 7 pods spontaneously of the self-fertilised. — young flowers were crossed. & self-fertilised

12 flowers were self-fertile by self & produced only 7 pods as above.

These plants in pots in greenhouse produced no pods spontaneously.

(May 16— 1869 young plants about 1 inch high no difference)

(May 28 1869 In Pot II & III. a self-plant has died, but no other in any other Pots) (& opposite crossed pulled up.—)

June 5. 1869 Measured by Lettington before dying & when nearly full grown

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Measured to extreme tips of longest leaves

Measured to extreme Points of Plant when dying & nearly full grown.

The plants were in full flower

In the 3 plants which survived to set seed some few pods, the fertility appeared about equal on crossed & self- sides.—

44

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