Speciman #7
Name: Pseudevernia intensa-Light and Dark Lichen
Family: Parmeliaceae
Collection Date: 10/26/10
Habitat: Hangs off of twig
Location: Graham Mt, Ash Creek AZ
Description: Thallus grayish white, often apothecia present on thallus, which is flattened.
Collector: Matt Wilson
Keying Information:
Key used: Ray E. Showman and Don G. Flenniken 2004 The Macrolichens of Ohio Ohio Biological Survey Columbus, OH
Pages 18, 24, 25, 236
Keying Steps:
1. Thallus fruticose or cladoniform..61
61. Thallus bush-like..62
62. Thallus green..63
63. Thallus elongate..tufted..64
64. Thallus with upper and lower surfaces..68
68. Thallus cylindrical..70
70. Interior with a solid, threadlike core..71
71. Interior with a hard, threadlike core..Usnea
Links
http://lichens.digitalmycology.com/macrolichens/Pseudevernia.html
| Figure 1-Close up of Liht and Dark Lichen |
| Figure 2-Showing the thallus of Light and Dark Lichen |
| Figure 3- Showing the apothecia of the Light and Dark Lichen |
| Figure 4- Showing a different angle of the Light and Dark Lichen that reveals the brownish apothecia |
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