Paper, 'On Dischidia rafflesiana' by Percy Groom

Description

Groom writes: 'The function of the pitchers: The pitchers contain living ants and acari, small quantities of insect remains, considerable amounts of earth, humus, and water; but all these bodies and substances are not found in each pitcher. The earth and humus, though partially brought to the pitchers by the agency of rain-water, are mainly con­veyed thither by ants, which nest within the pitchers. That the roots within the pitchers utilise these solid matters is suggested by the following facts, observed on living plants in the Botanic Garden, Singapore :—1. The roots are well developed in pitchers containing a rich store of earth and humus.'

Annotations in pencil and ink.

Subject: Botany

Received 1 February 1893. Read 23 February 1893. Communicated by Sidney Howard Vines.

A version of this paper was published in volume 53 of the Proceedings of the Royal Society as 'On Dischidia rafflesiana'.

Reference number

PP/21/3

Earliest possible date

1893

Physical description

Ink and graphite pencil on paper

Page extent

4 pages

Format

Manuscript