From Hermann Müller 23 October 1867
Summary
Thanks for German version of Origin [1867].
Dipterous insects are adapted to eating pollen rather than only to sucking nectar. He describes such adaptations in two dipteran species.
| Author: | Heinrich Ludwig Hermann (Hermann) Müller |
| Addressee: | Charles Robert Darwin |
| Date: | 23 Oct 1867 |
| Classmark: | DAR 171: 291 |
| Letter no: | DCP-LETT-5657 |
From Fritz Müller 17 July 1867
Summary
Thanks CD for sending F. H. G. Hildebrand’s book on fertilisation [Die Geschlechter-Vertheilung bei den Pflanzen (1867)]
and J. D. Hooker’s "Lecture on insular floras".
Describes work on Rubiaceae, Oxalis,
and on crossing orchids. Lists crosses made.
As for CD’s query concerning sexual differences among invertebrates, he gives the case of the local amphipod, Brachyscellus diversilor. Male differs in shape of antennae and coloration.
Also mentions local fish in sea near Sta Catharina which emits melodic tone to attract females.
| Author: | Johann Friedrich Theodor (Fritz) Müller |
| Addressee: | Charles Robert Darwin |
| Date: | 17 July 1867 |
| Classmark: | Möller ed. 1915–21, 2: 130–1 |
| Letter no: | DCP-LETT-5583A |
Matches: 1 hit
- … Hermann Müller (1 July 1866; the letters are reproduced in Möller ed. 1915–21, 2: 83–4, 86–9. Müller described it as a species of the orchid tribe Epidendreae with three fertile anthers, two in the outer whorl and one in the inner whorl (see Möller ed. 1915–21, 2: 87–8). He later published his observations in F. Müller 1868a , 1869, …
Document type
| letter | (2) |
Author
| Müller, Fritz | (1) |
| Müller, Hermann | (1) |
Addressee
| Darwin, C. R. | (2) |
Correspondent
| Darwin, C. R. | (2) |
| Müller, Fritz | (1) |
| Müller, Hermann | (1) |
