Name: Usnea Cavernosa-Cavern Beard
Family: Parmeliaceae
Collection Date: 10/04/10
Habitat: Hangs off of twig
Location: West Fork, Little Colorado River near Sheep’s Crossing
Description: Long established genus, characterized by a pale greenish to yellowish, pendulous to tufted, fruticose thallus, variously branched but usually with short fibrils perpendicular to the main trunk, sorediate or isidiate.
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
| Figure 1-Cavern Beard showing the hairy body |
| Figure 2- Close up of Cavern Beard |
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