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Darwin Correspondence Project

DCP-LETT-11628

From Francis Darwin   24 July 1878

This letter is not yet available online.

Summary

Notes Julius Sachs’s opinion on the heliotropism of moulds: he can see no use in the response.

C. E. Stahl is working on swarm spores which can be made both helio- and apheliotropic.

Sachs has told him that some ferns sleep, and he suspects that some grasses may move.

Sachs also feels they may be working at bloom from a wrong point of view and suggests leaves may need to keep dry in order to keep their stomata open.

Summary

Notes Julius Sachs’s opinion on the heliotropism of moulds: he can see no use in the response.

C. E. Stahl is working on swarm spores which can be made both helio- and apheliotropic.

Sachs has told him that some ferns sleep, and he suspects that some grasses may move.

Sachs also feels they may be working at bloom from a wrong point of view and suggests leaves may need to keep dry in order to keep their stomata open.

Letter details

Letter no.
DCP-LETT-11628
From
Darwin, Francis
To
Darwin, C. R.
Sent from
Botanisches Institut, Würzburg
Source of text
DAR 209.6: 198, DAR 162: 59
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 11628,” accessed on 29 July 2016, http://www.darwinproject.ac.uk/DCP-LETT-11628

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