Dear Sir.

I hope that you will excuse the liberty I take in begging a favour of you— I have been investigating the manner of fertilization and nature of the pollen in Melastomads, especially in Heterocentron & Monochætum.² I can find no nectar in these flowers and Prof Asa Gray writes to me that he can find none in the Northern U.S. sps of Rhexia.³ It would take up too much space to explain why I am very anxious to know whether insects visit the flowers of this order.— M^r Bates informs me that in the region of the Amazon’s he hardly ever saw bees or Butterflies sucking the many flowers of the many plants of this order.—⁴ I dare say some grow in your garden under your superintendence.⁵ Would you have the kindness to watch them when the weather is fine, occasionally for 5 or 10 minutes & inform me of the result? The species which interest me most are those which have the singular horns or projections to the anther; & four stamens of one colour & shape & four stamens of another colour and shape— The suspicion has crossed me that small insects such as flies or minute sand wasps may penetrate with their proboces or ⁠⟨⁠    ⁠⟩⁠ the horns of the anthers which are filled with fluid  ⁶ If this should prove to be the case, I should very much wish to hear in what position the insect stands on the flower. I do not know whether you have any native species of this order; as such species, or species of allied genera would be best to watch.

Hoping that you will excuse the liberty which I have taken in writing to you & that you will grant me this favour if in your power I Remain | yours ⁠⟨⁠    ⁠⟩⁠

P.S. | If you raise any melastomads from seed in considerable numbers would you be so good as to observe whether on the different individual plants, there is any difference in the position of ⁠⟨⁠    ⁠⟩⁠ pis⁠⟨⁠ti⁠⟩⁠l or stamens; all the ⁠⟨⁠flo⁠⟩⁠wers on one plant having the pistil in one position & al⁠⟨⁠l⁠⟩⁠ the flowers ⁠⟨⁠o⁠⟩⁠n another plant having the pistil in different position?⁷

Charles Darwin