Holotype Specimen of Rudbeckia scabrifolia

The International code  of Botanical Nomenclature requires that every plant species that has been named be represented by a specific herbarium specimen- a type specimen.  When the type specimen is designated by the author who names, describes, and publishes a species new to science the specimen is called a holotype.

Rudbeckia scabrifolia (Asteraceae) is a rare, large, coneflower that is found in Wet Herbaceous Seeps ("bogs") in th eeast Texas pineywoods. This specimen was designated the holotype--the single specimen chosen to represent this species--- by Dr. Larry Brown --the author who first published the name and description of R. scabrifolia.


Holotype Specimen of Rudbeckia scabrifolia

image of holotype specimen of Rudbeckia scabrifolia from ASTC

Holotype Specimen of Rudbeckia scabrifolia


Label closeup: holotype of Rudbeckia scabrifolia
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