Douglas M. Ladd

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Douglas M. Ladd   (Ladd)

Research interests: botany and lichens of Missouri

Botantist and Lichenologist

The Nature Conservancy
2800 S. Brentwood, St. Louis Missouri, USA 63144-2712

Author of following lichens:
    Hertelidea pseudobotryosa R.C.Harris, Ladd & Printzen
    Punctelia missouriensis G. Wilh. & Ladd
    Punctelia perreticulata (Räsänen) G. Wilh. & Ladd