Plants of the Gila Wilderness
Presented in Association with the
Western New Mexico University Department
of Natural Sciences
Orthotrichum pallens Bruch ex Brid.
Family: Orthotrichaceae
Status: Native
Synonyms:
Only infraspecific taxa
Orthotrichum pallens has acute, awnless leaves without obvious gemmae. The stomata might appear
superficial and lead to an error when keying. They are actually immersed with subsidiary cells that
do not project far if at all over the stomata, and therefore may appear superficial. The distal lamina is 1-stratose. Seville Flowers found
this specimen on dry rocks in shade.
Many thanks to the University of Colorado Herbarium (COLO), Erin Tripp, and Dina Clark for permitting us
to photograph this specimen.
Please click on an image for a larger file.
Orthotrichum pallens, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of stems, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf apex, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf base, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of mid lamina, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf cross section, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf cross section, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf cross section, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of leaf cross section, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of capsule, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
Orthotrichum pallens, photomicrograph of 2 stomata on capsule, collection by Seville Flowers (ID Dale Vitt, 1995), Montana,
Flathead County, Glacier Nationa Park, Lake McDonald, August 3, 1960; photos by
Russ Kleinman, Karen Blisard, Kelly Allred, Stacey Anderson & Ron Wittmann
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