Status: Native
Synonyms:
None
Bartramia potosica is similar to B. ithyphylla with very long leaves that have a sheathing base. The leaves of B. potosica are
very fragile though and many are broken about midleaf. In addition, on some stems the leaves stand stiffly erect. An under-rated and
useful character for differentiating B. potosica from B. ithyphylla is the costa. On cross-section, the abaxial costal stereid band
of B. potosica is much larger and broader (4-6 cells deep) than that of B. ithyphylla (2-4 cells deep). The cells are
prorate with high papillae. We found B. potosica at upper elevation on rocks along a cliff above a stream.
larger and broader.
Please click on an image for a larger file.
Bartramia potosica, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, fragile leaves broken at midleaf, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, photomicrograph of leaf, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, photomicrograph of leaf shoulder area, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, photomicrograph of leaf apex, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, photomicrograph of cells at leaf base, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, photomicrograph of transition from sheathing portion of leaf, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, photomicrograph of leaf cross-section, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
Bartramia potosica, photomicrograph of leaf cross-section, photo Russ Kleinman & Karen Blisard, San Miguel Cty., Santa Fe National Forest, Pecos Wilderness, Upper Gallinas Canyon, August 13, 2018
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