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The Cattleya orchid as painted by ISS member and orchid mycorrhizal researcher Doris C.N. Chang from the National Taiwan University, Taipei, Taiwan:
SEM of the ciliate Euplotidium itoi with bacterial ectosymbionts on its surface, from Giovanna Rosati of the University of Pisa, Italy. For more information on this fascinating symbiosis, contact her at rosatig@deee.unipi.it
TEM of ectosymbiotic bacteria known as epixenosomes, on the surface of Euplotidium itoi, from Giovanna Rosati of the University of Pisa, Italy. Note the complex stucture, unusual for prokaryotic organisms:
Lichen watercolours by Sherry Hooker, a teacher from Wayne, Maine, USA:
Lichen photographs from Trudi Schaper, Universität Düsseldorf, Germany:
Peltigera malacea:
Lobaria pulmonaria:
Omphalina ericetorum:
A digitized photograph of Ophrydium versatile from a bog in Andover, Massachusetts, USA by Douglas Zook. This is the zooid form of this colonial gel-making protist. It consistently stretches outward and contracts and features numerous Chlorella-like photo-symbionts:
Symbiotic sea anemone, Monterey Bay, Santa Cruz, CA by Douglas Zook
Symbiotic water fern Azolla filiculoides growing in wet soil at Golega, Portugal from Francisco Carrapiço, University of Lisbon:
Symbiotic dinoflagellates within an acoel flatworm from Chris Loban, University of Guam:
Reef-building
coral Mycedium elephantotus from Ove Hoegh-Guldberg, University
of Queensland, Australia: