Problems in elm and rose Identifications
groups mentioned for the hedge also occur in the wood.
Again radar charts (Figure 5) are used to provide a visual method for comparing the species.
Descriptors used for Rose Radar Charts
1. Hairs on leaves 0 = completely glabrous on leaf surfaces, veins, and rhachis
1 = few hairs on rhachis
2 = few hairs on rhachis and veins
3 = many hairs on rhachis and veins
4 = hairs visible over underside of leaf
5 = hairs felted, all over underside (tomentose)
2. Glands on leaves 0 = none
3 = few
5 = many
(1,2, &4 available as intermediates)
3. Stipule length 1 = >10mm
2 = 10-19mm
3 - 2()-29mm
4 = 30-39mm
5 - 40-49mm
4. Pedicel length
1 = short
5 = very long
(only comparing the species given, tomentosa is the longest)
0 = bare
1 - 2 = usually with some
4 = many short-stalked
5 = many long-stalked
1 = early
3 = before hips are fully red
5 = retained
5.Glands on pedicel
6.Sepal fall
7.Style form
1 = small group of stigmas touching disc
2 = stigmas spreading over disc
3 = tall bunch of stigmas touching disc at the bottom
4 = small knob on narrow column
5 = sturdy column with knob
1 -2 = flat to slightly raised
3 = raised
4 -5 = conical
8.Disc shape
NB - All the characters are grouped arbitrarily, and the scales were devised by us, to show the
significance of each of the characters that we selected, for each species or sub-specics.
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Essex Naturalist (New Series) 18 (2001)