BFNA Title: Neckeropsis
Author: I. Sastre-De Jesús 
Date: August 24, 2008
Edit Level: R 
Version: 1

Bryophyte Flora of North America, Provisional Publication
Missouri Botanical Garden

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XXX. NECKEROPSIS Reichardt, Verh. Zool. Bot. Ges, Wien 18: 192. 1868

Inés Sastre-De Jesús


Plants growing in mats or perpendicular to substrate, glossy green. Primary stem attached to substrate and secondary stem irregularly pinnately branched. Secondary stem leaves spreading to squarrose, undulate to smooth, asymmetric, oblong, ligulate; leaf base broadly ovate to oblong, sometimes clasping at base, distinctly to slightly auriculate; apex broadly to rounded-truncate; margins distinctly to slightly serrulate at apex, entire proximally, plane; costa single, reaching 1/2--3/4 leaf length; cells of leaf apex rectangular to rhomboidal, distal median cells rhomboidal to elongate-rectangular, basal cells rectangular, pitted or unpitted. Sexual condition synoicous or autoicous. Fertile stem with leaf-like paraphyses at base of seta. Seta short, embedded in vaginula. Capsule immersed; exostome teeth lanceolate, papillose; endostome with a low basal membrane, segments papillose. Spores papillose 13--18 \um.


SELECTED REFERENCES  Breen, R. S. 1963. Mosses of Florida: an Illustrated Manual. Gainesville. Crum, H. A. and L. E. Anderson. 1981. Mosses of Eastern North America. New York. 2 vols.


Species ca. 35 (2 species in the flora): worldwide, tropical and subtropical regions.


1. Leaves spreading to squarrose, undulate at least when moist; leaf base distinctly auriculate ….1. Neckeropsis undulata

1. Leaves mostly spreading, not squarrose, not undulate when moist; leaf base not auriculate, mostly oblong ……2. Neckeropsis disticha


1. Neckeropsis undulata (Hedwig) Reichardt, Verh. Zool. Ges. Wien 18: 192. 1868


Neckera undulata Hedwig, Sp. Musc. Frond., 201. 1801


Stem leaves spreading to squarrose, undulate-lunate when dry or moist, oblong-ligulate, 1.5--2(--3) mm, apex rounded-truncate to truncate, leaf base strongly ovate-auriculate; costa 3/4 of leaf length. Sexual condition autoicous, sometimes synoicous.


Capsules mature winter--spring (also Aug.). Limestone rocks, tree trunks, logs; 0--70 m; Fla.; Mexico; West Indies, Central America, South America.


Neckeropsis undulata is easily recognized by leaves lunate-undulate wet or dry, with apex truncate, and leaf base broadly auriculate. Outside the flora area, it occurs from lowland to lower montane forests, from sea level to 1800 m.


2. Neckeropsis disticha (Hedwig) Kindberg, Canad. Rec. Sci. 6: 21. 1894


Neckera disticha Hedwig, Sp. Musc. Frond., 201. 1801


Stem leaves spreading, crisped when dry, smooth when moist, oblong, (1--)1.5--1.6(--2) mm, leaf base slightly ovate, not auriculate; costa 1/2--3/4 of leaf length. Sexual condition synoicous.


Capsules mature fall--summer. Swamp forests and hammocks on trees, logs and rocks; 0--70 m; Fla.; Mexico; West Indies; Central America; South America; tropical Africa; Indian Ocean Islands (Comoros).


South of Florida in the Americas, Neckeropsis disticha occurs in lowland to montane forests, up to 1800 m. It is recognized by the smooth or crisped leaves, which are not undulate, and leaf base is oblong or slightly ovate.