Callus types


Callus may be heavily lignified and hard in texture,
whereas others break easily into small fragments
(friable). Different types of Gloriosa callus:

Friable callus

Hard / lignified callus

Callus exuding
sticky poly-
saccharides

Rhizogenic callus

Callus may have a yellow, white,
green or red (anthocyanin) appearance.

Red (anthocyanin
containing)(Oxalis)

white callus
(Oxalis)

Green callus
(Gloriosa)

Yellow callus
(Gloriosa)