RECORD: Darwin, C. R. n.d. Abstract of Godfrey, Newman, Henslow, Bromfield in the Phytologist. CUL-DAR73.106-113. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/).

REVISION HISTORY: Transcribed by Kees Rookmaaker, edited by John van Wyhe 3.2014. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. References:

Godley, W. 1848. Note on raising cowslips (Primula veris) from seed. Phytologist 3: 180.

Newman, E. 1848. Note on raising Jacquin's Primula (Primula jacquinii), commonly called the Bardfield oxlip, from seed. Phytologist 3: 180-181.

Henslow, J. S. 1849. On the experiments of raising Primulae, etc., from seed. Phytologist 3: 651-652.

Bromfield, W. A. 1849. Notes and occasional observations on some of the rarer British plants growing wild in Hampshire. Phytologist 3: 685-703.

Reproduced with the permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR 72-75 contain Darwin's abstracts of scientific books and journals.


[106]

Phytol. vol. 3. p. 180. Mr Godfrey gathered seed from common cowslip isolated in field & 36 seedlings raised & all came true. (Of course because parent left growing in its own pasture: this though so foolish as argument against variation, is rather good evidence of effect of garden on the production of vars.)

p. 180. Mr Edward Newman having planted the Bardfield Oxlip = Primula Jacquinii without any particular precautions near other vars, raised 8 seedlings which came all perfectly true.

p. 651. Prof. Henslow on this subject remarks that though negative testimony is never entirely worthless, & often very valuable, it cannot be of much weight in comparison with a little positive testimony in deciding the question at issue.

[107]

Dr Bromfield remarks "the cowslip may be regarded as a contracted, & so to speak concentrated form of the primrose." It seems proved "that the seeds of the primrose are capable of producing cowslip & every intermediate grade between these two, or in other words, all the puzzling vars. to which we give the name of oxlip." — "also "that roots of the primrose have been seen bearing both cowslips & oxlips along with their own proper flowers, yet the tendency to metamorphosis wd appear to be very strongly exerted towards the cowslip termination of the series & very feebly in the direction of the primrose extremity, as I cannot call to mind a single recorded instance of the seed of a genuine cowslip reverting to the absolute simple primrose of our hedge-rows." (Because not grown in shade?? C.D.)

Is convinced by Mr Watson's experiments. In the one one recorded in Phyt. vol. 2. 217 a caulescent var. of P. vulgaris, but nearer in character to cowslip than to primrose, produced 88 seedlings, of

[108]

these 5 proved genuine cowslips, 20 true primroses, 63 intermedisate. Now according to Gaertner who truly show that the results of Hybrids follow laws. might have come from different capsules. not then not like both. it is monstrous suppose that a hybrid mother crossed with either pure parent, would have produced some pure if both sexes. — Thus if the caulescent mother primrose (though nearer to cowslip) which we must suppose on Hybrid theory to be herself a hybrid, was crossed by pure primrose (as is most probable as 20 pure primroses were raised) it is monstrous to suppose that 5 pure cowslips cd have been raised.

Q.E.D. p. 694. "The primrose it is well known is absent from all the interior regions of northern Europe, where the cowslip is indigenous." This is grand as it shows a different geographicl range. — Dr B.

[109]

remarks, that getting a primrose from a Russian cowslip "would settle the question, if it be not so already in the mind of every unprepared person, beyond all further controversy, were it not that primroses & cowslips are so different to common eyes & in popular belief."

p. 695. The pant now regarded as the true P. elatior L (?) & of Jacquin, first brought before Brit. Bot. by Mr H. Doubleday, who discovered it at Bardfield, certainly has much the air of a distinct species, yet do observations of Mr H.C. Watson (Phyt. vol. I p. 1001) tend to throw some doubt on the fact "he having like myself "seen exceptional instances to all the characters (Taken singly) by which this plant is distinguished from P. vulgaris & p. veris in Mr Bab. Manual; the specific characters drawn out by that author being quite accurate, but not invariably applicable' — " After a visit

[110]

Dr B concluded "that it was a third & probably equally permanent race & variety of the same Primula, of which our primrose & cowslip are co-ordinate representations."

p. 703. "Experiments on the specific identity of the Cowslip & Primrose by J. Sidebotham."

Took root of P. veris — P. vulgaris var. intermedia. P. vulgaris (all from native haunts) P. veris var major from the Manchester market & P. Jacquini from Mr Doubelday — were prevented by being covered with glass from hybridising — planted them & took seeds himself. (N.B. he is enemy of Watson & took up experiment after him & wd no doubt have been glad to contradict him. —

Of P. veris 473 seedlings were planted out.

[111]

then came P. veris true 412  
P. veris var. major (Lond. Cat.) 27 turn these into deviants
—— [hose] in home 3  
P. veris dark-coloured 7  
do — approaching polyanthus 5  
do do [hose] in home 1  
no flowers 18  
Total 473  

 

P. veris var. major produced 65 plants, as follows:

P. veris var. major 21  
P. veris true 9  
Polyanthus in different shades 16  
do do hose in home 3  
do with leafy calyz 1  
P. vulgaris var. intermedia 7  
— var. caulescens 3  
P. vulgaris 2  
P. Jacquinii 1  
no flower 2  
Total 65  

 

N.B. Hybrids do not go back thus in a single generation.

[112]

P. vulgaris var. intermedia Lond.Cat. gave 27

P. vulgaris var. intermedia 19
do. var. caulescens 3
P. vulgaris (true) 1
no flowers 4
  27

 

P. vulgaris produced 18

P. vulgaris 15
do var. caulescens 1
no flowers 2
  18

 

P. Jacquinii produced 32

P. Jacquinii 24
P. vulgaris 1
— var. caulescens 1
no flowers 6
  32

 

"Sych are the results of my experiments which I must own disappointed me greatly, & interfered very materially with

[113]

my previous ideas of specific identity: we have certainly no direct change from the primrose to cowslip, or the reverse, but we have the change in two steps, first, from the P. veris to P. veris var. major, & then from that to P. vulgaris." —

It is very curious to see how hereditary each var. is in the above lists.

[113v]

I think it must be admitted that number of species related to diversity of conditions — but that whatever conditions are, more forms supported according to degree of difference.

9


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