Browse Items (192 total) for Ada Hayden

Brassica nigra (Black mustard) specimens (black and white), including flowers and leaves, identified as negative 1322B

Brassica nigra (Black mustard) specimens (black and white), including flowers and leaves, identified as negative 1322A

Arnoglossum (Indian plantain), in situ (handcolored)

Cacalia tuberosa (Indian plantain), in situ (handcolored)

Arnoglossum (Indian plantain), in situ (handcolored)

Cacalia tuberosa (Indian plantain), in situ (handcolored)

Cirsium (Thistle), in situ (handcolored)

Cirsium (Thistle), in situ (handcolored)

Cirsium lanceolatum (Thistle), in situ (black and white)

Cirsium lanceolatum (Thistle), in situ (black and white)