[C3]

Maer July (40)

Kidney Bean flowers [Sketch]

have stigma — in tube (same as hood in peas) curved like French horn. — sometimes with small circular orifice Before flower opens, stigma not visible from circular end of tube, but later, though before flower opens stigma style projects. — in opened flower generally has pollen grains on it & on hairs just below it.

When Bees & they much frequent this flower alight on B.B. (in order to suck nectaries at base of A. —) their movement protrudes stigma half of length & the brush of hairs brings out much pollen. Each Bee which alights on flower must almost necessarily brush off much pollen & deposit it on stigma of other flower I should think most stigmas were impregnated by foreign pollen —

Petal A acts like a hood & is persistent long after BB have withered. — In Coronella protection is afforded [sketches] by outward curvature of each flower stalk petals appearing equally persistent.

X (The hoods sheath of all flowers of Coronella opened during one hot day & would thus afford crosses.—

In Peas & Beans movement of BB does not push out stigma, but merely a large mass of pollen. — it does in Bean─ I cannot see that this can help crosses— for petals BB cover sheath & the few Bees that visit Peas alight on BB & insert proboscis at base of A — In Beans I one day saw many humble Bees, but they were all searching bases of flower stalks & not one tended I never saw one touch flower

1841 I have several Peas, Beans & Kidney Beans have their flowers.

[C3v]

swarming with a minute linear fly & more especially its larvae. I have seen these crawl out of brush on stigma style of Bean with grains of pollen adhering to them X. —The old ones fly readily, — Do these carry pollen — In Kidney Bean there were a good many Meligethes also in water— pumpkin flowers. — NB. Cowcumbers impregnate themselves in Garden here & as Edward says in frame.—

I have seen Bees on Potato flowers

I see Syophus often alight on flowers & I think its hairy body was dusted— also some other flys. —

Not nearly so many Thrips in June 1841=

Bees very stupid do not remember wh. flowers they have visited.