Plants of the Gila Wilderness

Presented in Association with the
Western New Mexico University Department of Natural Sciences

Mnium thomsonii Schimper

Family: Mniaceae

Status: Native

Synonyms:
Mnium decurrens Müll. Hal. & Kindb.
Mnium orthorrhynchum auct plur.

Mnium thomsonii has leaves that are strongly doubly toothed from the apex down beyond midleaf. The leaves are narrower than most other species of Mnium. The leaves are also quite decurrent on the stem. Mnium thomsonii has median leaf cells that are smaller than those of other Mniums, with most cells of M. thomsonii less than 25 microns in greatest dimension. Mnium thomsonii is found in moist areas at upper elevation.
Please click on an image for a larger file.



Mnium thomsonii, photo Russ Kleinman & Karen Blisard, Taos County, Sangre de Cristo Mtns, Carson Nat Forest, Taos Ski Valley, end of Twining/Kachina Road near start of Wheeler Peak trail, September 17, 2017

Mnium thomsonii, photomicrograph of leaf with decurrency, photo Russ Kleinman & Karen Blisard, Taos County, Sangre de Cristo Mtns, Carson Nat Forest, Taos Ski Valley, end of Twining/Kachina Road near start of Wheeler Peak trail, September 17, 2017

Mnium thomsonii, photomicrograph of leaf, photo Russ Kleinman & Karen Blisard, Taos County, Sangre de Cristo Mtns, Carson Nat Forest, Taos Ski Valley, end of Twining/Kachina Road near start of Wheeler Peak trail, September 17, 2017

Mnium thomsonii, photomicrograph of leaf with decurrency, photo Russ Kleinman & Karen Blisard, Taos County, Sangre de Cristo Mtns, Carson Nat Forest, Taos Ski Valley, end of Twining/Kachina Road near start of Wheeler Peak trail, September 17, 2017

Mnium thomsonii, dark field photomicrograph of leaf with decurrency, photo Russ Kleinman & Karen Blisard, Taos County, Sangre de Cristo Mtns, Carson Nat Forest, Taos Ski Valley, end of Twining/Kachina Road near start of Wheeler Peak trail, September 17, 2017

Mnium thomsonii, photomicrograph of median cells with largest dimensions less than 25 microns, photo Russ Kleinman & Karen Blisard, Taos County, Sangre de Cristo Mtns, Carson Nat Forest, Taos Ski Valley, end of Twining/Kachina Road near start of Wheeler Peak trail, September 17, 2017


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