Status: Native
Synonyms:
Gymnostomum involutum Hook.
Hyophila involuta has recently been found (March, 2024) by John Brinda in New Mexico. It has blackish-green leaves that are clustered at the ends of the stems (rosulate) and that are involute/tubulose when dry. The leaves rapidly expand to a ligulate, somewhat sheathing shape when wet, with a percurrent costa that may form an apiculus. The quadrate midleaf cells bulge ventrally in noticeable diagonal rows, although papillae are not present or not obvious, and the cells are rather small at about 8 microns wide. The leaves are inconspicuously serrulate distally. There are two stereid bands on cross section and the stem has a central strand. There are frequently abundant multicellular gemmae that are formed in leaf axils at the ends of long, thick (much thicker than the rhizoids for comparision) chlorophyllose or brownish multicellular stalks. The gemmae are variable in shape and can be elliptic to stellate. Hyophila involuta is found in the beds of seasonally flowing creeks on rock.
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Hyophila involuta (dry), collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta (moistened), collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of moistened stems, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of dry involute/tubulose leaves, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of leaf, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of leaf apex, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of leaf base, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of laminal cells near costa, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of laminal cells where the laminal bends upward on the right-- notice that the cells appear rounded in profile where they bulge upward, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of cross section of proximal lamina, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of detail of costa with 2 stereid bands, collection & ID by John Brinda, Eddy County, Munson Trail #210 near Sitting Bull Falls, in dry streambed on rock, March 26, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of gemmae forming stalks on stem with leaves removed to expose axils, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of gemmae forming stalks on stem with leaf removed to expose axil, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of gemmae forming stalks isolated, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of gemmae forming stalks isolated, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of isolated gemmae forming stalk, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of gemma, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of gemma, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
Hyophila involuta, photomicrograph of gemma, Russ Kleinman & Karen Blisard, Arizona, Pima County, Madera Canyon, Old Baldy Trail, in dry streambed on rock, March 30, 2024; photos by Russ Kleinman & Karen Blisard, April 2, 2024
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