Mosses of New Mexico Outside of the Gila Wilderness

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

Plagiothecium denticulatum (Hedwig) Schimper

Family: Plagiotheciaceae

Status: Native

Synonyms:
Plagiothecium denticulatum (Hedw.) Schimp. var. bullulae Grout
Plagiothecium denticulatum (Hedw.) Schimp. var. donii Lindb.
Plagiothecium denticulatum (Hedw.) Schimp. var. majus (Boul.) Delogne
Plagiothecium denticulatum (Hedw.) Schimp. var. obtusifolium (Turner) Moore
Plagiothecium denticulatum (Hedw.) Schimp. var. undulatum Ruthe ex Geh.

Plagiothecium denticulatum is a rather small complanate pleurocarpous moss with very asymmetrical leaves. There are no papillae present and the costa, while variable, is usually short and double. The leaves are strongly decurrent. The cells of the decurrency are inflated and round. The lamina cells of P. denticulatum are about 11 microns wide, significantly wider than those of P. laetum. We found Plagiothecium denticulatum growing on a rocky outcrop mixed with liverworts at upper elevation. .
Please click on an image for a larger file.



Plagiothecium denticulatum, 5x macro of habit, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014



Plagiothecium denticulatum, 40x photomicrograph of stem, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014



Plagiothecium denticulatum, 100x photomicrograph of leaf, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014



Plagiothecium denticulatum, 100x photomicrograph of leaf, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014



Plagiothecium denticulatum, 100x photomicrograph of leaf, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014



Plagiothecium denticulatum, 400x photomicrograph of leaf apex, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014



Plagiothecium denticulatum, 400x photomicrograph of leaf decurrency, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014



Plagiothecium denticulatum, 400x photomicrograph of width of lamina cells measured, photo Russ Kleinman, Karen Blisard & Kelly Allred, Taos Cty., Sange de Cristo Mtns., Carson National Forest, near the upper Taos Ski area lift, end of Twining/Kachina Rds., July 22, 2014


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