![Hairs of Loganiaceae EP-IV2-012](https://upload.wikimedia.org/wikipedia/commons/e/ec/Hairs_of_Loganiaceae_EP-IV2-012.png)
Colleters are
plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclud ...
structures, multicellular secretory
hairs
Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals.
The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine ...
, found in groups near the base of
petioles, on
stipules, and on
sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...
s. They are found in members of the
Loganiaceae and
Rubiaceae families.
References
Plant morphology
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