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Acrostichum. Acrostichum aureum , a. Blade on left, stipe on right, b. Base of stipe with adventitious roots and scales, c. Above, pinnule attachment; below, section of stipe showing marginal spine, d. Areoles in midrib region of pinna. e. Paraphyses. Acrostichum danaeifolium , a. Sterile blade on right, section of sterile stipe on left. b. Fertile blade on right, stipe of fertile blade on left. c. Base of stipe with scales and scale scars below; middle of blade showing pinnae attachment above, d. Single pinna. e. Areoles in the midrib region of pinna. f. Paraphyses. Both drawn by Priscilla Fawcett. From Correll and Correll 1982.
DOI link for Acrostichum. Acrostichum aureum , a. Blade on left, stipe on right, b. Base of stipe with adventitious roots and scales, c. Above, pinnule attachment; below, section of stipe showing marginal spine, d. Areoles in midrib region of pinna. e. Paraphyses. Acrostichum danaeifolium , a. Sterile blade on right, section of sterile stipe on left. b. Fertile blade on right, stipe of fertile blade on left. c. Base of stipe with scales and scale scars below; middle of blade showing pinnae attachment above, d. Single pinna. e. Areoles in the midrib region of pinna. f. Paraphyses. Both drawn by Priscilla Fawcett. From Correll and Correll 1982.
Acrostichum. Acrostichum aureum , a. Blade on left, stipe on right, b. Base of stipe with adventitious roots and scales, c. Above, pinnule attachment; below, section of stipe showing marginal spine, d. Areoles in midrib region of pinna. e. Paraphyses. Acrostichum danaeifolium , a. Sterile blade on right, section of sterile stipe on left. b. Fertile blade on right, stipe of fertile blade on left. c. Base of stipe with scales and scale scars below; middle of blade showing pinnae attachment above, d. Single pinna. e. Areoles in the midrib region of pinna. f. Paraphyses. Both drawn by Priscilla Fawcett. From Correll and Correll 1982.
ABSTRACT
The genus Acrostichum and the species A. oureum were both created by Linnaeus in Genera Plantarum in 1754. It was not until 1810 when A. danaeifolium was described from the state of Santa Catarina in southern Brazil where it had been collected by Georg Heinrich von Langsdorff (1774-1852).
