Cyrto-hypnum involvens

(Hedwig) W. R. Buck & H. A. Crum

Contr. Univ. Michigan Herb. 17: 66. 1990.

Basionym: Leskea involvens Hedwig Sp. Musc. Frond., 218. 1801
Synonyms: Thuidium involvens (Hedwig) Mitten
Treatment appears in FNA Volume 28. Treatment on page 375. Mentioned on page 377.

Stems 1-pinnate, stems and branches smooth; paraphyllia to 8 cells in length, cells 1:1, sparingly papillose. Stem leaves flexuose-incurved when dry, ovate-triangular, (0.3–)0.5–0.6 mm; apex ± abruptly short-acuminate; costa disappearing in but not filling acumen. Branch leaves strongly incurved when dry, 0.5 mm; apex obtuse to acute; costa 7/8 leaf length, ± flexuose, not covered with cells apically. Perichaetial leaves with margins subentire proximally or with few coarse, blunt teeth, laxly serrulate distally. Seta papillose. Capsule with endostome cilia single, rarely with rudimentary additional cilium.

Phenology: Capsules mature winter [Nov–Dec(-Mar)].
Habitat: Lowlands, moist forests, limestone, soil, humus, rotten wood
Elevation: low elevations


V28 590-distribution-map.gif

Fla., Mexico, West Indies, Central America, n South America.


Cyrto-hypnum involvens is distinguished by its 1-pinnate stems, strongly incurved leaves, non-ciliate perichaetial leaves, and rough seta. The aspect is quite different from the other species in the genus. Cyrto-hypnum involvens occurs between 0 and 1000 m elevation south of the flora area.

Selected References


Lower Taxa

... more about "Cyrto-hypnum involvens"
William R. Buck +
(Hedwig) W. R. Buck & H. A. Crum +
Leskea involvens +
Fla. +, Mexico +, West Indies +, Central America +  and n South America. +
low elevations +
Lowlands, moist forests, limestone, soil, humus, rotten wood +
Capsules mature winter [Nov–Dec(-Mar)]. +
Contr. Univ. Michigan Herb. +
Illustrated +
Thuidium involvens +
Cyrto-hypnum involvens +
Cyrto-hypnum +
species +