From Charles William Crocker 1[–4] May 1863
Westgate, Chichester
May 1st. 63.
Dear Sir
I ought to have answered your kind letter before this but the excuse I have to make is one that will be accepted I know.1 The day after I received your letter and the copy of the paper upon Linums,2 I went out into the meadows for the first time for a long period. You know that I have promised myself to look up the Plantagos this season and I found that P. lanceolata was already coming into bloom.3 The very first spike I examined, showed I fondly thought, that I was on the eve of a discovery. I tried all I could find in bloom and I fully believed that this species at least does not—cannot—be fertilised by its own pollen. You know how careful I am, and I was afraid to trust this first examination, and was waiting for better opportunities for confirming these observations. We have since had cold rains and very cold dry winds and these have checked the growth even of the weeds. I have therefore not carried my observations so far as I should otherwise have wished before mentioning them. But I must not delay my letter any longer and I cannot send it off without telling you what I think I have seen. The pubescent styles are protruded nearly or quite all the way up the spike before the stamens of the lower flowers even are ready to expand. By the time the lower flowers have hung out their anthers the styles are withered and useless (probably later in the season fertilised) half way up the spike at least.4 How is fertilisation brought about? My idea is that the wind is the agent, although like yourself I dont give the wind credit for doing much in this line.5 In the first place there is no coloured corolla, no odour, and (I think) no honey to attract insects. With all the time I have been able as yet to devote to this point I have seen only one single insect settle upon a spike of this plant. I watched him (he was a kind of fly—I am afraid of entomological terms) and he seemed to me to have settled there by accident perhaps merely to rest, for he did not set about examining flowers, he was simply resting himself—doing nothing—
Let us see what there is to favour the idea of the wind as being the agent. The long exserted styles are downy, ready to catch any pollen wafted to them; the anthers are hung out clear of the spike upon long thin filaments; the pollen is dry and non-cohesive in any way.— it is easily scattered from the large splitting anthers. So the matter stands at present, I think with me that you will say there is enough to induce one to hope for some facts worth having. Through the winter I have been looking up all my friends except those at Kew6 and have collected above 30 species of the genus—hoping that something would turn up in regard to their structure and wondering what it would be. I expect mine is the largest set of these weeds in the country and should anybody get a view of my garden this year I shall be sure to get my German title back again—“The mad Englishman”.7 I am afraid the genus Bougueria is not in cultivation, most people would think it not worth growing. However I must if possible get hold of our British Littorella— Sir W. Hooker says in Brit Flora that it makes quite a turf on the margins of Highland lakes.8 I have sent to a friend in Aberdeenshire— it grows too in our own country but rarely. I dont doubt that I shall get it. Both genera should be examined in connection with Plantago. they would throw side light upon the subject.9 My wild specimen of P. lanceolata which last year produced a rosette of leaves instead of flower-spike (a foliaceous expansion of the bracts) has this season returned to the normal form.10 I have however got seedlings from the few flowers produced among the leaves of that rosette and shall wait and see what they do.— Net like the sample you sent me will keep out the wind enough for practical purposes, dont you think it will?11
After no end of a lot of correspondence with all parts of the country I this winter succeeded in getting above two dozen genuine single Hollyhocks from a friend’s friend in Yorkshire. They are doing well and are safe to flower— it remains however to see what the colours may be. Out of so many taken up at hazard we shall surely get a sufficient variety to suit our purpose.12 With health there is little to fear on this point.
My Linum flavums have stood the winter well and though few in number will I hope be sufficient. Many thanks for your kind mention of my name in connection with this plant.13
Upon second thoughts I believe it would be worth while to let you have a list of my Plantagos, as possibly in your wanderings you may light upon one or two sp: which might be added to my collection, and I know you would not think me troublesome in asking it.
P. stricta. Schousb.14 P. pumila, L
mexicana, Link15 Hookeriana F. et Mey.16
arenaria W. et K.17 amplexicaulis. Cav.18
lagopus, L.19 microcephala, Poiret20
lusitanica L. sibirica, Pl.21
Psyllum22 major
subulata, L. F.23 —[ditto]— monstrosa
Loeflingii, L. —[ditto]— purpurea
maritima intermedia
coronopus lanceolata
serpentina — [ditto]— var.
virginica, L. Xorullensis, Kunth.24
Candollei, Rap.25 nitida
alpina altissima ?
graminea ciliata (or cynops?)
I am specially anxious to add all vars of Brit. sp: I can get hold of.
I found that Henderson of Pine Apple Place,26 had got Peloria vars of Antirrhinum and Linaria vulgaris, so wrote and bought them with one or two Plantagos and other things, but although I did this 6 weeks ago I have not got them down yet.27 I am afraid the order is so small they hardly think it worth doing. If I go to London this spring I shall go and fetch them.— Out of 100 Primroses examined last week I found 44 long styled 56 short— the long ones differ much in length.— Out of 50 Cowslips—27 were long—23 short styled— Nobody has grown P. sinensis in quantity in this locality this year.—28
Believe me to remain, dear Sir, with the Greatest thanks for your kindness— | Yours very respectfully | Chas. W. Crocker
C. Darwin Esqr.
Three days have I see been lost (lost to science but used in money making) since I commenced this letter.29
CD annotations
Footnotes
Bibliography
Collected papers: The collected papers of Charles Darwin. Edited by Paul H. Barrett. 2 vols. Chicago and London: University of Chicago Press. 1977.
Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 29 vols to date. Cambridge: Cambridge University Press. 1985–.
Crocker, Charles William. 1864. Plantago lanceolata. Gardeners’ Chronicle and Agricultural Gazette, 26 March 1864, pp. 293–4.
Cross and self fertilisation: The effects of cross and self fertilisation in the vegetable kingdom. By Charles Darwin. London: John Murray. 1876.
Desmond, Ray. 1994. Dictionary of British and Irish botanists and horticulturists including plant collectors, flower painters and garden designers. New edition, revised with the assistance of Christine Ellwood. London: Taylor & Francis and the Natural History Museum. Bristol, Pa.: Taylor & Francis.
Forms of flowers: The different forms of flowers on plants of the same species. By Charles Darwin. London: John Murray. 1877.
Hooker, William Jackson. 1830. The British flora; comprising the phænogamous, or flowering plants, and the ferns. London: Longman, Rees, Orme, Brown, & Green.
‘Illegitimate offspring of dimorphic and trimorphic plants’: On the character and hybrid-like nature of the offspring from the illegitimate unions of dimorphic and trimorphic plants. By Charles Darwin. [Read 20 February 1868.] Journal of the Linnean Society of London (Botany) 10 (1869): 393–437.
Index Kewensis: Index Kewensis: plantarum phanerogamarum, nomina et synonyma omnium generum et specierum … nomine recepto auctore patria unicuique plantae subjectis. 4 vols., and 20 supplements. Compiled by Benjamin Daydon Jackson, et al. Oxford: Clarendon Press; Royal Botanic Gardens, Kew. 1893–1996.
Post Office London directory: Post-Office annual directory. … A list of the principal merchants, traders of eminence, &c. in the cities of London and Westminster, the borough of Southwark, and parts adjacent … general and special information relating to the Post Office. Post Office London directory. London: His Majesty’s Postmaster-General [and others]. 1802–1967.
‘Two forms in species of Linum’: On the existence of two forms, and on their reciprocal sexual relation, in several species of the genus Linum. By Charles Darwin. [Read 5 February 1863.] Journal of the Proceedings of the Linnean Society (Botany) 7 (1864): 69–83. [Collected papers 2: 93–105.]
Willis, John Christopher. 1973. A dictionary of the flowering plants and ferns. 8th edition. Revised by H. K. Airy Shaw. Cambridge: Cambridge University Press.
Summary
Observes Plantago’s out-crossing mechanism.
Observations of style lengths of primroses and cowslips.
Letter details
- Letter no.
- DCP-LETT-4135
- From
- Charles William Crocker
- To
- Charles Robert Darwin
- Sent from
- Chichester
- Source of text
- DAR 110: 28, DAR 161: 260
- Physical description
- ALS 5pp † encl
Please cite as
Darwin Correspondence Project, “Letter no. 4135,” accessed on 13 December 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-4135.xml
Also published in The Correspondence of Charles Darwin, vol. 11