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December 5, 2006 : Physarum cinereum
Keywords: Physaridae | Physarum cinereum (Batsch) Pers | Basingstoke, Hampshire, England
On rare occasion, I ask to use a photograph from the UBC Botanical Garden Forums for BPotD, particularly when it's shows an intriguing subject. Such is the case today with this image of a slime mold from some anonymous folks in England via their garden installer, “Souren”: Weird Growth on Lawn Grass – What Is It?
If you missed the explanation on slime molds from a previous BPotD entry, see Fuligo septica for details and a comprehensive set of links. Physarum cinereum belongs to the same family as Fuligo septica. According to The Hidden Forest, this means both species contain deposits of lime (calcium carbonate), apparently a defining characteristic of the family.
Christine Baker of Iowa State University Extension writes about slime molds and backyard plants in Slime in the Yard and Garden (scroll down for the photograph that makes me believe my identification of this slime mold is correct). I was glad to have found a similar photograph of the organism covering grass blades, as close-up photographs such as the ones found on The Hidden Forest: Physarum and Discover Life: Physarum cinereum appear deceptively dissimilar to the submitted photograph because of scale.
Photography resource link: The Essential Landscape – The Visual Handicap, an article by Guy Tal for Nature Photographers Online, on acknowledging the limitations and utility of photography.
Posted by Daniel Mosquin at December 5, 2006 12:00 AM
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Posted by: sheila pickerill at December 5, 2006 7:35 AM
Please share your comments about the photograph(s) and accompanying write-up. Telling a story about the subject of the photograph(s) is also much appreciated! If you have a gardening question, the best place to ask is on the UBC Botanical Garden Forums. Thank you!
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Botany Photo of the Day is a project of the UBC Botanical Garden and Centre for Plant Research, located in Vancouver, British Columbia Canada. UBC BGCPR is a department of the Faculty of Land and Food Systems within The University of British Columbia.
This clearly illustrates for me the beauty of Nature. With such a name as Slime Mold, I would never have expected a sight as lovely as this. Thank you for yet another lesson.