Status: Native
Synonyms:
Fimbraria palmeri Austin
Asterella palmeri has 0.5-1cm long thalli that are 5-10mm wide. These thalli are noticably smaller than the otherwise similar A. lindenbergiana. The ventral surface is brown-black to purple (a bit darker than A. lindenbergiana) with
purple scales that have a long lanceolate appendage that is 1-2 seriate. The sporophyte has a fringed receptacle. Mature
spores are brown-black.
Many thanks to the New York Botanical Garden and Laura Briscoe for loaning us these specimens (NYBG barcode #00267164 & 00267163) for photography.
Please click on an image for a larger file.
Asterella palmeri, collection & ID by Brother G. Arsène, New Mexico, Sandia, Ellis Ranch, 1926; photos by Russ Kleinman & Karen Blisard, October 1, 2023
Asterella palmeri, dark field photomicrograph of thallus, collection & ID by Brother G. Arsène, New Mexico, Sandia, Ellis Ranch, 1926; photos by Russ Kleinman & Karen Blisard, October 1, 2023
Asterella palmeri, photomicrograph of scales and appendages, collection & ID by Brother G. Arsène, New Mexico, Sandia, Ellis Ranch, 1926; photos by Russ Kleinman & Karen Blisard, October 1, 2023
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Asterella palmeri, dark field photomicrograph of appendage, collection & ID by Brother G. Arsène, New Mexico, Sandia, Ellis Ranch, 1926; photos by Russ Kleinman & Karen Blisard, October 1, 2023
Asterella palmeri, sporangiophore, collection & ID by C.C. Kingman, California, Altadena, "gravelly places", March 2, 1911; photos by Russ Kleinman & Karen Blisard, September 30, 2023
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