The Names Of Plants.pdf

(d)
(a)
(c)
(b)
(e)
Figures
Figure 5. Some leaf shapes which provide specific epithets:
(a) Palmate (e.g. Acer palmatus Thunb. ‘Dissectum’. As this maple’s leaves mature,
the secondary division of the leaf-lobes passes through incised-, incisum, to torn-,
laciniatum, to dissected-, dissectum, lobed, from one central point.
(b) Pedate (e.g. Callirhoe pedata Gray). This is distinguished from palmate by
having the lower, side lobes themselves divided.
(c) Pinnate (e.g. Ornithopus pinnatus Druce). When the lobes are more or less
strictly paired it is called paripinnate, when there is an odd terminal leaflet it is
called imparipinnate, and when the lobing does not extend to the central leafstalk
it is called pinnatifid.
(d) Peltate (e.g. Pelargonium peltatum (L.) Ait.) has the leaf-stalk attached on the
lower surface, not at the edge.
(e) Ternate (e.g. Choisya ternata H. B. K.) In other ternate leaves the three divisions
may be further divided, ternately, palmately, or pinnately.
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