from LANZAROTE with love

Lichens on a volcanic island

by M. Halit Umar

Page 7 of 7



These three successive images clearly illustrate that such tiny cavities may contain enough water for green algae and can give rise to an associative life form; the lichens which are shown below.

Note the cup-shaped forms and leaf-like surfaces. The former may be called asci and contain fungi generally named ascomycetes.


Note the junction between the brown-black lava stone and green and leafy lichen. Do you notice the whitish mass just in between? This white tissue is a fungus and is made of thread-like structures called hyphae.


Did you find the fibrillar white structure (hyphae) at the centre, just inside that whitish fungal tissue?

Seen at a higher magnification


And in close-up (about 100 times magnified)

Comments to the author Comments to the author sent via our contacts page quoting page url plus : ('mhumar','')">M. Halit Umar are welcomed.
All images presented in this article are © M. Halit Umar.


Some interesting Internet Links chosen for you from a large collection of sites:

An introductory account about Lanzarote or Canary Islands can be found in the Encyclopaedia Britannica.

Parque Nacional de Timanfaya or The National Park of Timanfaya

A good start for an almost complete presentation of César Manrique

Return to first page


Microscopy UK Front Page
Micscape Magazine
Article Library

© Microscopy UK or their contributors.

Published in the March 2001 edition of Micscape Magazine.

Please report any Web problems or offer general comments to the Micscape Editor,
via the contact on current Micscape Index.

Micscape is the on-line monthly magazine of the Microscopy UK web
site at Microscopy-UK

© Ltd, Microscopy-UK, and all contributors 1995 onwards. All rights reserved. Main site is at with full mirror at