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June 20' 1869 Caerdeon— Fox-gloves

The 2 upper anthers dehisce sometime before the 2 lower ones, & afterwards the pistil which lengthens, has stigma open— so dichogamous — I see pollen-collecting Humble visit flower & get thorax covered with pollen.

The Hair on lower lip too soft to influence position of Bee, which do not turn round, but slide out of flower along lower sur lip.— Plenty of nectar secreted.— Lower lip of corolla spotted as well as Hairy—

The pollen falls on masses out of anthers, on to leaves & only small portion retained by Hairs (over)

5 fl. + 1 = 6 double Black-Thread— which mean means lower & hairy side of corolla cut off— (These set about as well as the unmutilated flower.)—

White Threads. crossed by distinct Plants 2 + 4 = 6

Black Thread. (single) 7 crossed by pollen from younger flower on same stem & plant.

The ♀ 3 stamens produced 105 flowers under net, of which 13 flower fertilised as above in 2 ways —/over

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T. H. Farrer thinks hairs aid Humbles in crawling in different flowers

The corolla does not curl inwards in withering or turn round in falling off, so that Hairs are not brought into contact with stigma & are not of any more use, than wooliness on margin or outside of corolla.—

I shook violently sometimes plants under net wd. would likely to fertilise some of them artificially

(Aug. 22d. 1869 examined seed 5/6 of crossed set, but only 1 pod contained good seed, the rest, though much in quantity mouldy.—

Of art. self fert 5/7 set, but only two contained good seed the rest with it mouldy.—

92 flowers were untouched & these produced only 24 pods, (whilst with uncovered plants every fl. produce a pod) of these pods only 2 contained full complement of seed & 6 a moderate quantity, the remaining 16 contained very few seed, some only about half-a dozen seed — so plant very sterile when insects are excluded.—