Leaves dense, hiding the stem, long-lanceolate to linear-elliptical and commonly weakly constricted beyond the short-sheathing base, (1--)1.5--1.8(--2) mm; apex narrowly acute to acuminate, occasionally blunt, apiculus narrowly triangular; margins 1-stratose; costa regularly excurrent into a short or long, stout mucro of several cells. Specialized asexual reproduction absent. Sporophytes absent in range of flora.

Calcareous and non-calcareus rock, wet areas, spray of falls; 300--900 m; N.Y., N.C., Ohio, Tenn.; e and c Asia.

Anoectangium stracheyanum was previously a synonym of A. aestivum (R. H. Zander 1977), but further study indicates it is a good match for the Asian A. stracheyanum, in the weakly wasp-waisted, narrow leaves with a rather strong, commonly multicellular apiculus, and papillose-crenulate or weakly denticulate basal laminal margins. The “wasp-waist” referred to by Asian authors is usually just a hint of constriction just beyond the short-sheathing leaf base, and many leaves are merely straight-sided. Collections identified as A. peckii from Maine are Amphidium mougeotii.

SELECTED REFERENCES

Andrews, A. L. 1953. The possible type locality of Anoectangium peckii. Bryologist 56: 49--50.