Accession No

4644.2

Brief Description

Botanical wallchart: line graph showing the proportion of plant mass which is leaf in Impatiens parviflora.. (Leaf dry weight is plotted against total dry weight).

Origin

Cambridge

Maker

Class

natural history; prints

Earliest Date

1850

Latest Date

1967

Inscription Date

Material

cloth; paper

Dimensions

height 585mm; breadth 1018mm

Special Collection

Botanical teaching diagrams from Dept. of Plant Sciences

Provenance

Transferred from the Department of Plant Sciences, University of Cambridge.

Inscription

‘IMAPTIENS PARVIFLORA’ (top centre)

Description Notes

Hand drawn line graph in black marker pen, with stencilled text.
Plots leaf dry weight against total dry weight, for total dry weights from 15 to 150mg. A key distinguishes between data points taken from cabinet measurements, and that taken in the field. Both sets were for a 16 hour day.
Compare item 4642.1, which plots the series over a wider range.

References

Events