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FNA | Family List | FNA Vol. 27 | Funariaceae | Entosthodon

10. Entosthodon tucsonii (Bartram) Grout, Moss Fl. N. Amer. 2: 81. 1935.

Funaria tucsonii Bartram, Bryologist 31: 91, plate 8, figs. G-N. 1928; Physcomitrium haringiae Grout

Plants 2-5 mm, pale yellow-green. Leaves variously contorted when dry, oblong-lanceolate to narrowly obovate, imbricate, somewhat concave, mostly 2.5-4 mm; margins serrulate to serrate by projecting ends of thin-walled cells; apices gradually narrowed to an acumen bearing a filiform tip of 3-4 cells; costa ending 4-7 cells before the awn; basal laminal cells rectangular (85-110 × 32-40 µm), distal cells irregularly rectangular to oblong-rectangular, or polygonal, somewhat rhomboid near the margins. Seta brownish, 6-10 mm, straight, not hygroscopic. Capsule ovoid-pyriform from a long neck approximating half the total length, 2-3 mm, sulcate especially in the neck when dry and empty; exothecial cells scarcely thickened, oblong (2-3:1) and transversely elongate in 5-7 rows proximal to the mouth; operculum rounded-conic; peristome rudimentary or absent, exostome teeth brownish, irregularly blunt tipped, striate-papillose, endostome segments shortly rounded triangular, extending to about the tooth middle, smooth. Calyptra cucullate, long-beaked, inflated around the capsule, large, smooth. Spores 32-40 µm, papillose.

Sandy soils, along intermittent desert streams; moderate to high elevations; Ariz., Calif., Colo., Tex.


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