Status: Native
Synonyms:
Brachymenium niveum Bescherelle
Leptostomopsis nivea is best recognized among the Bryaceae by its long, hyaline awn that can be as long or longer than
the lamina. It is found in clumps on tree trunks in Mexico. Per FNA this species has distal laminal cells that are 4-6:1 with thick
walls that are somewhat sinuate. The is species has not yet been found in New Mexico but is similar to L. systylia which has been found here and is so far known from one collection by Stark & Castetter.
Many thanks to the University of Colorado Herbarium (COLO), Erin Tripp & Dina Clark for loaning us this specimen for photography.
Please click on an image for a larger file.
Leptostomopsis nivea, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, macro of habit, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, photomicrograph of habit, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, photomicrograph of leaf, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, photomicrograph of leaf, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, photomicrograph of leaf, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, photomicrograph of leaf apex (below awn), collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, photomicrograph of leaf base, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
Leptostomopsis nivea, photomicrograph of cells at midleaf, collection by C.G. Pringle, ID by R.S. Williams as Brachymenium condensatum n.sp., ISOTYPE, Mexico, Michoacan, Patzenaro, on oaks at 8000 feet, December 21, 1891; photograph Russ Kleinman & Karen Blisard, June 18, 2023
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