Palo Verde Wash
Wayne's WordIndexNoteworthy PlantsTriviaLemnaceaeBiology 101BotanySearch

   Wildflowers1     Wildflowers2     Wildflowers3     Wildflowers4     Chollas1     Chollas2     Pilostyles 

Palo Verde Wash: Anza Borrego State Park

© W.P. Armstrong 28 December 2007

Mojave Mound Cactus (Echinocactus polycephalus var. polycephalus)

Left: Mojave Mound Cactus (Echinocactus polycephalus var. polycephalus). Right: California Barrel cactus (Ferocactus cylindraceus).

Fish-hook cactus (Mammillaria dioica)
.

Cryptobiotic soil lichens. The tan-brown species is Psora decipiens, a squamulose soil lichen commonly associated with cryptobiotic crust in Anza-Borrego Desert State Park. The black lichen is similar to some species of Collema. It has a cyanobacterium photobiont; however, the spores appear to be nonseptate.

Microscopic view of ascus from above black lichen showing eight nonseptate ascospores. Species in the genus Collema typically have septate spores. Magnification 1000x.

  Cryptobiotic Crust In Anza-Borrego State Park  

Return To WAYNE'S WORD Home Page
Return To NOTEWORTHY PLANTS Page
Go To Biology GEE WHIZ TRIVIA Page
Go To The LEMNACEAE ON-LINE Page