Status: Native
Synonyms:
Weissia crispula Hedwig
Dicranoweisia crispula (Hedw.) Lindb. ex Milde
Hymenoloma crispulum has been confused with H. mulahaceni in New Mexico, a fact that was finally pointed out to us by Ries Lindley. H. crispulum differs in having one-stratose margins and laminae, thickened rectangular cells in the lower laminae, and inflated alar cells. Both species have linear striations that appear to be papillae that can be quite numerous on cross section. After re-examining New Mexico specimens, all of the H. crispulum specimens we have thus far seen except the one photographed here have actually been H. mulahaceni. We believe that gemmae are present in this specimen (collected recently by R. Sivinski) in the concave adaxial parts of the leaf, but admit that we might be fooled by an alga.
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Hymenoloma crispulum (dry), collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum (dry), macro of habit, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum (dry), macro of habit, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of stem, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum (dry), photomicrograph of capsule, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of leaf, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of leaf apex, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of leaf base, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of inflated cells at leaf base, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of thick walled laminal cells near leaf base, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of fine linear leaf striations en face view near midleaf, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of fine linear leaf striations en face view near midleaf, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of leaf cross section with striations appearing as papillae, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of leaf cross section with striations appearing as papillae, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of gemmae(?) on leaf surface, collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
Hymenoloma crispulum, photomicrograph of gemmae(?), collection by R. Sivinski (ID by Kelly Allred Sept. 2023), New Mexico, Rio Arriba County, Sangre de Cristo Mountains, glacial cirque just above North Fork Rio Quemado Falls and below North Truchas Peak, cracks in quartzite bedrock under Picea engelmannii, August 19, 2023; photos by Russ Kleinman, Karen Blisard & Kelly Allred, September 21, 2023
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