Archidium ohioense Schimp. ex Müll.Hal.

  • Authority

    Sharp, Aaron J., et al. 1994. The Moss Flora of Mexico. Part One: Sphagnales to Bryales. Mem. New York Bot. Gard. 69 (1): 1-452.

  • Family

    Archidiaceae

  • Scientific Name

    Archidium ohioense Schimp. ex Müll.Hal.

  • Description

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    Species Description - Plants 2-20 mm high, gregarious to loosely tufted, yellowgreen to green. Stems erect, simple to many-branched by subapical or lateral innovations. Upper stem leaves erectspreading to spreading, channeled, ovate-lanceolate or lanceolate to narrowly long-triangular, acuminate to ± subulate, 0.5-1.7 mm long; margins entire to faintly serrulate above; costa percurrent to strongly excurrent; median cells rhomboidal to prosenchymatous, 45-90 x 9-14 µm, shorter toward the apex; basal cells short-rectangular to rectangular, those at alar regions quadrate in 2-6 rows. Autoicous; perichaetia and perigonia mostly lateral and sessile, occasionally terminal on short branches. Perichaetial leaves 1-2 mm long, ovate, oblong-ovate, ovate-lanceolate, or lanceolate, short- to longacuminate; margins plane, entire to faintly serrulate above; costa percurrent to strongly excurrent; median cells rhomboidal to prosenchymatous, 45-140 x 9-14 µm, shorter above; basal cells loosely rhomboidal to rectangular. Capsules lateral or occasionally terminal, about 0.3-0.6 mm broad. Spores 4-60 per capsule, 110-310 µm , irregularly angled, smooth to densely papillose.

  • Discussion

    Fig. 16e-i

    A. ohioense Schimp. ex C. Mull., Syn. Muse. Frond. 2: 517. 1851.

    Archidium ohioense is similar in habit to A. hallii but has leaves of denser areolation and leaf margins only slightly reflexed or recurved.

  • Distribution

    On moist, bare sand or loam along roadsides and banks of ditches; Chihuahua (Puerto de Rio Urique, Bowers et al. 5355, TENN), Nayarit (W of Jesus Maria, Norris & Taranto 14086, TENN); recorded by Delgadillo (1992b), without locality, fromMexico.—Mexico; West Indies; North America; Africa, Ceylon, India, China, Japan, and New Caledonia.

    Africa| West Indies| North America| Ceylon Asia| India Asia| China Asia| Japan Asia| New Caledonia