Columella (botany)

Columella (in plants) is an axis of sterile tissue which passes through the center of the spore-case of mosses.[1] In fungi it refers to a centrally vacuolated part of a hypha, bearing spores. The word finds analogous usage in myxomycetes.

Zygote fungus sporangium, with columella labelled

The term columella is also used to refer to story 1 to story 4 (S1 – S4) cells in the root cap located apically of the quiescent centre.

References

One or more of the preceding sentences incorporates text from a publication now in the public domain: Beach, Chandler B., ed. (1914). "Columella" . The New Student's Reference Work . Chicago: F. E. Compton and Co.

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[1] One or more of the preceding sentences incorporates text from a publication now in the public domain: Beach, Chandler B., ed. (1914). "Columella" . The New Student's Reference Work . Chicago: F. E. Compton and Co.