Irwin Murray Brodo, a world authority on the identification and biology of lichens, reported that Plitt had a private collection of over 10,000 lichen specimens. This collection was estimated to be the third largest at the time.
Irwin Murray Brodo, an expert on lichens, noted that Plitt had a personal collection of more than 10,000 lichen specimens. This collection was believed to be the third largest at the time.