[Casuarina dimorphic. — Dr. Masters exhibited a specimen received from Baron von Müller, in which a portion had developed sharp-pointed leaves exactly similar to the pointed- leaved form of Juniperus, which is often dimorphic in the same way. Mr. Henslow mentioned that these changes are paralleled by the Thuya-leaved forms of Veronica, which grow at great altitudes in New Zealand, and observed that analogies seemed to suggest varying degrees of drought or moisture as likely to be the direct cause of the different kinds respectively.]
Casuarina
Juniperus
Thuya
Veronica
Letter not found. The text given here is from a report of the meeting of the Scientific Committee of the Royal Horticultural Society held on 14 November 1893, Gardeners' chronicle, 25 November 1893, p. 660. The letter is dated to early October as the latest likely date that it could have been sent to have been exhibited at that meeting.
Please cite as “FVM-93-10-00b,” in Correspondence of Ferdinand von Mueller, edited by R.W. Home, Thomas A. Darragh, A.M. Lucas, Sara Maroske, D.M. Sinkora†, J.H. Voigt† and Monika Wells accessed on