BERAU HERBARIUM

ARRANGEMENT
Choose the best way of presenting the
specimen in order to display all its characters
as far as possible. Labels should be on the
bottom right hand corner, just 0.5 cm from
the lower margin. The consecutive accession
number stamp should be in the top right hand
corner, just 0.5 cm below the upper margin.
Paper capsules should be on the top left hand
corner, just 0.5 cm below the upper margin.
Number tags must be preserved with the
specimens by gluing them to the sheet still attached to the specimen.
STRAPPING METHOD
Small straps of gummed linen (figure 16) or
paper are placed across the specimen at
intervals and stuck to the sheet at either end.
Thin straps should be used on finer portions
of the specimen and thicker straps where extra
strength is needed, like over stems or thick
fruits. Avoid strapping over important details,
such as flowers or small inflorescences, as
well as the nodes on a twig. When strapping is
applied across a leaf-blade, only attach the
ends of the strap where contact is made with
the paper. This allows the leaf to move freely
when the sheet is handled.
Covers
A species cover (figure 18) covers every
sheet. A Genus cover covers groups of
species covers. Genus covers are normally
the more robust and are provided with a
family and genus name in the bottom right
hand corner. Often different colours are used
to indicate geographical areas. For example,
in WAN different colours are used for the
four provinces of Kalimantan and areas
outside Kalimantan. Type material is
protected using red genus covers.
Figure 16: Cutting mounting straps
Figure 17: Mounting specimens on acid free paper, using
straps
Figure 18: Preparing the specimen covers for storage
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