If you’re crossing the Forest Street footbridge over Campbells Creek this month, you might want to cast your eye down to the downstream edge of the bridge. Those nondescript streaks of shades of green are colonies of three different moss species. The remarkable thing about this apparently ordinary scene is that council staff regularly come along here and scrape the moss off…and regularly it comes back, colonising an apparently inhospitable concrete surface. In its way, it’s a kind of heroism.
Council versus moss, now in its umpteenth season: Silver Moss and Cushion Moss regrowing after repeated removals…
The grey green moss is Bryum argenteum (Silver Moss). It’s common in Castlemaine streets, and is found on every continent on earth, including Antarctica. In a few weeks it will produce some picturesque spore capsules—but you’ll have to get down on your knees to see them properly. The deeper green is Grimmia pulvinata (Cushion Moss). It’s spore heads are visible already.
Grimmia pulvinata with new spore capsules, Campbells Creek footbridge: it doesn’t matter how often it’s scraped off, it comes back as good as ever.
FOBIF’s field guide, Mosses of dry forests in south eastern Australia, has just been reprinted in a revised edition, including for the first time common names to go with those ferocious scientific tags. This guide, produced as an experiment in 2014, has proved tenaciously popular, and has now gone through 6 reprints.
Click on image for info/order page
Click on image for info/order page
Click on image for info/order page
