Aloina aloides var. ambigua

(Bruch & Schimper) E. J. Craig in A. J. Grout

in A. J. Grout, Moss Fl. N. Amer.1: 214. 1939,

Basionyms: Barbula ambigua
Found in FNA Volume 27. Treatment on page 616.
Plants to 2.5 mm. Leaves ligulate to lingulate, 1–2.8 mm, margins entire, undifferentiated at base, apex cucullate to nearly open; costa subpercurrent to percurrent, filaments of 3–6 cells, cells subspheric; cells of leaf base 15–64 µm, medial and distal cells 11–24 µm, occasionally with large solid papillae at leaf tip. Sexual condition dioicous or rhizoautoicous. Seta 5.5–12.5 mm. Capsule urn cylindric, 1.5–3 mm; operculum campanulate, 1–1.4 mm; peristome 600–1200 µm, strongly twisted. Spores 13–24 µm.

Phenology: Capsules mature Jan–May.
Habitat: Low, desert areas, banks and dry washes, soil and limestone
Elevation: moderate elevations (400-800 m)


Ariz., Calif., Mexico (Baja California), Europe, Asia (India, Israel, Jordan, Lebanon, Turkey), n Africa, Australia.


In var. ambigua, the cylindric capsules with a long and twisted peristome are distinctive. Forms with short-lingulate leaves may be confused with Aloina hamulus when sterile. Outside North America, var. ambigua may occur as high as 2100 m.



AuthorClaudio Delgadillo M. +
BasionymBarbula ambigua +
Elevationmoderate elevations (400-800 m) +
HabitatLow, desert areas, banks and dry washes, soil and limestone +
IllustratorPatricia M. Eckel +
PhenologyCapsules mature Jan–May. +
ReferenceNone +
Taxon nameAloina aloides var. ambigua +
Taxon parentAloina aloides +
Taxon rankvariety +
VolumeVolume 27 +