The resulting new bone is often called an 
involucrum .  On histologic  examination, these areas of necrotic bone are the basis for
Kaynak: Osteomyelitisin some fungi: the 
involucrum , peridium  or volva  in the fern family Hymenophyllaceae : the cup-shaped indusium  surrounding a cluster of
Kaynak: InvolucreAt the same time as this, new bone is forming (known as 
involucrum ).  Opening in this 
involucrum allow debris and exudates (including pus
Kaynak: SequestrumThis brood chamber is surrounded by layers of cerumen, the 
involucrum.  The 
involucrum helps maintain a constant climate in the brood
Kaynak: Tetragonisca angustulaidiogenes ("distinctive, peculiar"), in reference to this species' unusual 
involucrum , indumentum  and the strongly scented red and white flowers.
Kaynak: Banksia idiogenesThey have not been found in flowers, unless the brown and black pigments in the 
involucrum of certain compositae are found to be of the
Kaynak: Phlobaphenea pachyosteosclerotic (thick, heavy bone) bulla  with an 
involucrum  and sigmoid process  cheek teeth adapted for shearing with reentrant
Kaynak: PakicetidNeither the skull nor the dentition of pakicetids resemble those of modern whales, but the sigmoid process , 
involucrum , pachyostotic
Kaynak: ArchaeocetiThe head of the first phalanx of the third toe also contained a possible 
involucrum.  Multiple pathologies were also observed in five ribs
Kaynak: Theropod paleopathologyAbout the size of a raccoon or domestic cat, this herbivorous creature shared some of the traits of whales, most notably the 
involucrum ,
Kaynak: Evolution of cetaceanscaused by a blow from above".The near end of the first phalanx of the third toe was afflicted by an 
involucrum . Other pathologies reported
Kaynak: AllosaurusBumblebees sometimes construct a wax canopy ("
involucrum") over the top of their nest for protection and insulation.  Bumblebees do not
Kaynak: Bumblebee