Paper, 'On the embryology of Angiopteris evecta [giant fern], Hoffm' by John Bretland Farmer

Description

Farmer writes: 'During a recent visit to Ceylon [Sri Lanka] I took the opportunity of collecting young plants and prothallia of Angiopteris evecta, with the view of working out the embryology of this type of the eusporangiate Filicineae, since the development of the embryo is not as yet known in any member of this group. Most of my specimens were obtained from clay banks in the vicinity of Peradeniya, where the plants are not uncommon. The prothallia are easily distinguished from those of other Ferns by their somewhat orbicular shape, with crenate edges, as well by their strikingly deep-green colour.'

Annotations in pencil and ink.

Subject: Botany

Received 28 March 1892. Read 12 May 1892.

A version of this paper was published in volume 51 of the Proceedings of the Royal Society as 'On the embryology of Angiopteris evecta, Hofm'.

Reference number

PP/19/15

Earliest possible date

1892

Physical description

Ink and graphite pencil on paper

Page extent

5 pages

Format

Manuscript