Entry for Diphyscium mucronifolium Mitten [family ]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 27,
Names
Diphyscium mucronifoliumMitten [family ], in F. Dozy and J. H. Molkenboer, Bryol. Jav., 1: 35, plate 26. 1855,
Diphyscium cumberlandianumHarvill [family ]
Diphyscium involutumMitten [family ]
Information
Plants dark green to brownish, somewhat glossy, tightly affixed to substratum. Stems 0.5–1 mm, erect, strongly radiculose. Leaves 0.5–5 mm, and somewhat crisped when dry, apex acute, the most proximal leaves reduced, laminal cells smooth, margins entire. Perichaetial leaves with smooth awn, 9–12 mm, lamina at awn base lacerate but not membranaceous. Capsule narrowly ovoid, 2–3 mm, stomata absent, mature capsules sheathed in penicellate perichaetium, awns extending more than twice the length of the immersed capsule. Spores 9–12 µm.
Phenology
Sporophytes infrequent, capsules mature summer.
Altitude range
moderate elevations (900–1000 m);
Distribution
Asia (China, India, Japan, Philippines, Sri Lanka).USA Ala.USA Ga.USA Ky.USA N.C.USA Tenn.USA Va
Discussion
Diphyscium mucronifolium is an example of an east Asian disjunctive species, and is found only as local, small populations.