Cladonia evansii or Cladonia subtenuis

Reindeer lichens are fruticose. Two species live in NW Florida: Cladonia evansii and Cladonia subtenuis. Looking closely, am I seeing both types? Can I tell which is which? Generally here's my take:

item Evansii Subtenuis
growth puffs mounds
color light silvery aqua yellow greenish
outer edges finer tips with closed aspect open branching
prevalence great unbroken patches rarely a colony, more often interspersed with Evansii

Video taken in Rocky Bayou State Park on the Red Cedar Nature Trail, NW Florida on April 23, 2010. The sound of traffic from nearby State Road 20 often is louder than the wind and birds in the forest.

See also Choctawhatchee Estuary Family Festival. Back to Lookout 2009, Identification.

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