[216]

July 27th

Arachis Hypogæa

Left Right Hand          Right Left Hand

gynophore which had penetrated

Earth, hoisted up almost Horizontally

tip white terminal part had been buried         gynophore growing down to Earth

tip near sand & earth

one inch from soil

1

vertical g        

2

vertical glass

Left Hand

Right Hand

8° 15 am          8° 15

9° down           9° to right & up

10. 20' down & to left —        10° 20' up a little, straight

11. 40 straight down & to right & L   11. 40 down & to left back, parallel

1°    same course         1° up

2°    do, nearly            2° down

2. 50    do.       2. 50 to left & up

3. 47 little up 3 47 up & to left

5 30 down       5'. 30 to left

7° straight down          7° up & to left

10 down & to R          10' down, parallel

28' 7°45 ..... down & little to right during night        28' 7°. 45 ...... up during night

8°. 5 down & to left    8° 5. down & parallel

8. 50' up & to right     8° 50 up & to right crossed night-line

10° 5 down straight     10. 5. to left

11. 10 down & to right           11' 8 down & to left

12 up a little & to left .           12. same spot

1° down           1° up

2 down & to R.           2° to right

3° 15 to left     3. 15 to left

4° 30 straight down     4° 30 up & to right

6° up & to right          

8° 30 up— {I think withered & dry   7' inches from vertical glass

length of gynophore 1 1/2 inches

went down on slightly

zig-zage line, but then

began to wither—

Gynophore rigid — white tough & stiff

The ovules embedded in pointed tip

of gynophore, extremely smooth—

gynophr, surrounded by many of

fibro-vascular bundles—

Must be base of ovarium,

which moves— above Calyx

(Used)

[216v]

735 (21

Chapter XI

by humble bees, without a hole in it; and Mr Gentry in speaking of the introduced Wistaria sinensis says "that nearly every flower had been perforated." * (back)

As far as I have seen, it is always humble-bees which first bite the holes, and they are well fitted for the work by their powerful mandibles; but hive bees afterwards profit by the holes thus made., but

Dr. H. Müller however, writes to me that they hive-bees sometimes bite holes through the flowers of Erica tetralix. No insects except bees, and in the with the single exception of wasps in the case of the Tritoma, wasps have sense enough, as far as I have seen observed, to profit by the already made holes which have been made by bees. Even humble-bees do not always discover that it would be profitable advantageous to them to perforate certain flowers: there is an abundant supply of nectar in the nectary of Tropaeolum tricolor, and I have found this plant untouched in more than one garden, while the flowers of other plants had been extensively perforated; but a few years ago Sir J. Lubbock's gardener assured me that he had seen humble-bees boring through

[217]

July 31 Arachis

 

Left Hand— Long gynophore            Right Hand Short gynophore

    Short

8. 10    8° 10'

9.15 a little up & to left          9 .15' to left

10 20 moved a little    10. 20 moved a little

10° 20' new dot— more magnified    10. 20'

11 34 little up 11 34' same spot

12. 55 to left   12. 55 down & to left

2° ‹up› to right (near end of arrow)    2° ‹up› to right, back & up

3° down           3° same course, short way

4° 10' to right. X         4° 10 to right & up.

6° up    6° up

8. 25' down     8° 25 to left

10. 5    10. 5

Aug 1' 7°. 12' Aug 1' 7° 12'

8° 50 to left & little down. thick line             8° 50' down

10. 26 to right & down           10. 26 down

12. 5' to left & little down      12°. 5' up & to right

2° . 10 same course     2° 10 to left

4. 12. to left    4° 12 to right back & parallel.

6 to right, back above & parallel       6 to right parallel & above lower line

8. 10. down.    8. 10' down

Aug 2d 7° 25' ⨀          Aug 2d 7° 25

   8° 10                8. 10 [sketch]

 

10. 20 31

7°. 12 Aug 1'

12°—

(Used)

[217v]

761 (618

Chapter XII

Gen con

with another, the offspring did not profit in the least by the cross. as their progenitors had been kept all the time under the same conditions as nearly as was possible Mimulus offers another case instructive case, showing clearly that the benefit of a cross depends at on the previous treatment of the progenitors: some plants which had been self-fertilised for the last eight previous generations were crossed with plants which had been intercrossed for the same number of generations, all having been kept under the same conditions as far as possible; seedlings from this cross were grown in competition with seedlings others derived from the same self-fertilised mother-plants crossed by a fresh stock; and the latter seedlings were to the former in height as 100 to 52, and in fertility as 100 to 4. An exactly parallel experiment was tried on Dianthus, with this case difference that the plants had been self-fertilised only for the last three generations, and the result was similar though not so strongly marked. The two cases lately advanced of the offspring

[218]

August 2d

Arachis gynophore

August 2d

8° 30

10. 10' a little down & to right

10. 15 long Gynophores

11. 30' down 12. 12 down a little. (rubbed further side)

1. 45 to left & up

2. 55 up (the long one has come back on glass)

4. 2' straight down.

4. 30 far down

5 25    do.

5. 55 down

8 20 below rim ⨀ guess—

Aug 3d inclined very strongly down not bent over pin

Used

[218v]

[fragment]

760 (617

espondence probably depends follows

ing largely governed by chiefly determined by the number of the pollen-tubes

will be determined governed by the

nd the stigmatic secretion or

d constitutional vigour of

ned only by the number of pollen-tubes reaching by this reaction between

raction between

and ovules.)

[illeg]

[illeg] all visibly

that the advantages of cross-

some mysterious virtue in the