RECORD: Darwin, C. R. & Francis. 1878.07.31-.08.04. Pinus pinaster / Draft of Cross and self fertilisation. CUL-DAR209.3.275-276. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 12.2022. RN2

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR209.3 contains materials on Circumnutation of leaves and hyponasty for Darwin's book Movement in plants (1880). The text of the draft corresponds to Cross and self fertilisation, pp. 426-8.


[275]

Pinus Pinaster July 31

8° 45'    first dot stem tied

9  20'   down & to left. ( begin Here)

10. 26  to left   ︖

11   4 2 5 up considerably & to left

  1° down & to left

  2   5' down & parallel & to right

3. 8   nearly same course (did I make

   ☞ mistake up & lower ends of mark

4. 3   down & to left

6. 7   straight down

7 . 20   same course

9   to right

10. 30'   down   Used

Point of leaf 12 inches from glass

Aug. 1'   6° 40' am far down ......

 

2°  

4°  

6°  

  8°‒ 30   to right & little up

  9.  15   same course

  10. 15    straight up

  11. 20   down & to right

  12 up & back. — can such small movements be trusted?

}

   2° up

    4. 5'  to the right

    6. 5    up

    9°  a little down

              clearly circumnutating about same point

       Pushed pot further off & in new Place

Aug 2d 7° a.m dots in 2 Places

    8°. 45   a little up & to right

    11. 5   up.

    12. 55 straight up

     3°  up (Brighter day) no very dark all early morning yet rose

     4°  up & little to R

     6    up & to left

     7° 15   to right horizontal.

    9° up & little to right

10. 35   to right & up.

[275v]

[The excised right side of this page is at CUL-DAR.209.3.272.]

through the corolla; but in

anner although they could

obtain the nectar in a in a legit=

to corolla.)

ck)

methos of operating, on flowers

es from the outside close to

idden within the corolla.

of Stachys coccinea had

upper side of the corolla near the base.

rabilis & of Salvia coccinea

manner; whist with those

lyx which is much elongated in had

rolla were both invariably

Pentstemon cornutus is argutus are

st named, and two holes

ave always bored through been made in them

[276]

Pinus Pinaster Aug 3d

Aug 3d 6° 40' am. to left & down .......

 

  9°. 5   down & to left little

  10· 30   down & little to right

  12°    to right & down (crossed yesterdays line )—

  1· 50   down & to right

  3°   a little up & to left

  4   to right & up short-way

  6°   5'   up & to L.  

   8   30   down parallel & back

  10· 35   up . parallel    

  4th  6° 43   a little up .......

   8   20   up & to left

Used

[276v]

734 (20

Ch XI

through a lens. This process was repeated many times; but I did not succeed in finding a single flower, though many hundreds were examined, which had not been perforated. Humble-bees were at the time sucking the flowers through these perforations. On the following day a large number of flowers were examined on the another heath with the same result, but here hive-bees were sucking through the holes. which probably had been made by humble bees. This case is all the more remarkable, as the innumerable


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

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