Lamella (mycology)

Source: Wikipedia, the free encyclopedia.
For other uses, see Lamella (disambiguation).
Lactarius subdulcis fruit bodies with prominent adnate gills. The shape, colour, density and other properties (for instance, the gills here leak latex) are important when identifying mushroom species.
"False" gills of Craterellus tubaeformis

In

Lactarius species typically seep latex
from their gills.

It was originally believed that all gilled fungi were

basidiomycetes
have evolved gills is that it is the most effective means of increasing the ratio of surface area to mass, which increases the potential for spore production and dispersal.

Other groups of fungi to bear gills include:

Members of the two related genera of chanterelles, Cantharellus and Craterellus, have rudimentary lamellar structures which are sometimes referred to as "false gills". They are distinguished from "true gills" because the structure of the fertile surface ("hymenium") continues uninterrupted over the gill edge, so they are little more than folds, wrinkles or veins.[1] The genus Gomphus also has false gills. These primitive lamellae indicate how the evolution towards true gills probably happened.[2]

Lamellula (pl.: lamellulae) are partial gills that do not reach the stipe.[3]

Classification

Morphologically, gills are classified according to their attachment to the stipe:

  • Adnate
    Adnate
  • Adnexed
    Adnexed
  • Decurrent
    Decurrent
  • Emarginate
    Emarginate
  • Free
    Free
  • Seceding
    Seceding
  • Sinuate
    Sinuate
  • Subdecurrent
    Subdecurrent

References

  1. ^ See Tom Volk's Fungus of the Month for January 2008 for a description of the difference between "real" and "false" gills.
  2. PMID 17486970. Archived from the original (PDF) on 13 June 2010. Retrieved 23 March 2013.. The important "false gill" characteristic of the chanterelles is discussed on page 938 and it is mentioned that lamellae of Gomphus
    are similar.
  3. ^ "A Grammatical Dictionary of Botanical Latin". www.mobot.org. Retrieved 2024-03-27.
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