Johansen J.R.

Mexico, Yucatan peninsula,vicinity of Tulum, Car Wash Cenote, on the shore of the small fresh water reservoir, on the wood surface with visible algal populations (in the subaerophytic conditions)

Mexico, Yucatan peninsula,vicinity of Tulum, Car Wash Cenote, on the shore of the small fresh water reservoir, on the wood surface with visible algal populations (in the subaerophytic conditions)

Mexico, Yucatan peninsula,vicinity of Tulum, Grand Cenote, cliffs near small fresh water reservoir, on the sloped surface with visible algal populations

Hawaii . Mud collection from first waterfall (field code PK-07-25-09-005). Palolo Valley Trail, Honolulu, Oahu

Fort Irwin expansion site TAA2, CA. Loamy sand in wash with Ephedra and Larrea, well-developed algal crusts. Mojave Desert, Fort Irwin NTC, CA

Fort Irwin expansion site TAA2, CA. Loamy sand in wash with Ephedra and Larrea, well-developed algal crusts. Mojave Desert, Fort Irwin NTC, CA