Atractylocarpus longisetus (Hook.) E.B.Bartram

• Authority

  Frahm, Jan-Peter. 1991. Dicranaceae: Campylopodioideae, Paraleucobryoideae. Fl. Neotrop. Monogr. 54: 1-238. (Published by NYBG Press)

• Family

  Dicranaceae

• Scientific Name

  Atractylocarpus longisetus (Hook.) E.B.Bartram

• Type

  Type. Colombia. Fusagasuga, Humboldt & Bonpland s. n. (holotype, BM).

• Synonyms

  Atractylocarpus strictulus (Müll.Hal.) J.-P.Frahm, Campylopus laxiretis E.B.Bartram, Dicranodontium pusillum Thér., Dicranodontium setosum R.S.Williams, Dicranum macrodon Hampe, Dicranum pittieri Renauld & Cardot, Metzleria spiripes (Müll.Hal.) Broth., Metzleria strigulosa (Müll.Hal.) Broth., Metzleria sublongiseta (Müll.Hal.) Broth., Dicranum longisetum Hook., Dicranodontium longisetum (Hook.) R.S.Williams, Metzleria longiseta (Hook.) Broth., Metzlerella longiseta (Hook.) Broth., Dicranum strictulum Müll.Hal., Dicranum spiripes Müll.Hal., Dicranum strigulosum Müll.Hal.

• Description

  Species Description - Plants to 15 mm high, erect, golden-yellowish to brown. Stems reddish tomentose. Leaves 4-7 mm long, long-lanceolate, from broad base gradually narrowed into a long acumen. Costa filling one half of the leaf base, excurrent, in transverse section with a median band of deuter cells and multilayered bands of ventral and dorsal stereids, smooth at back. Basal laminal cells rectangular, slightly incrassate, 57-69 × 18-24 µm, narrower at margins forming a distinct border. Upper laminal cells rectangular, incrassate, 3678 × 9-14 µm. Perichaetial leaves with broad sheathing base, suddenly contracted into a long fine point formed by the excurrent costa. Setae 17-22 mm long, erect, yellow to brown, twisted when dry in the upper part. Capsules 2 mm long, cylindric, ca. 3-5:1, brown to dark brown. Exothecial cells rectangular, 5-6:1. Opercula long rostrate, 1.5 mm long. Annulus lacking. Peristome teeth divided up to 2/3 into two prongs. Spores 14-16 µm. Calyptrae golden-yellow with darker tip, cucullate, covering the whole capsule.

• Discussion

  Distribution and Ecology: On humid or peaty soil, on rotten logs, at base of trees at and above timberline, in Central America also in lower altitudes on logs down to 1500 m in Mexico, Costa Rica, Guatemala, Honduras, Panama, Guyana, Venezuela, Colombia, Ecuador, Peru, Bolivia and Brazil.

• Distribution

  Mexico North America| Oaxaca Mexico North America| Puebla Mexico North America| Guatemala Central America| Honduras Central America| Morazán Honduras Central America| El Paraíso Honduras Central America| Comayagua Honduras Central America| Intibucá Honduras Central America| Alajuela Costa Rica Central America| San José Costa Rica Central America| Cartago Costa Rica Central America| Heredia Costa Rica Central America| Panama Central America| Chiriquí Panamá Central America| Colombia South America| Antioquia Colombia South America| Arauca Colombia South America| Boyacá Colombia South America| Cundinamarca Colombia South America| Huila Colombia South America| Magdalena Colombia South America| Meta Colombia South America| Santander Colombia South America| Venezuela South America| Bolívar Venezuela South America| Mérida Venezuela South America| Sucre Venezuela South America| Táchira Venezuela South America| Ecuador South America| Carchi Ecuador South America| Santiago-Zamora Ecuador South America| Peru South America| Amazonas Peru South America| Cusco Peru South America| Huánuco Peru South America| Loreto Peru South America| San Martín Peru South America| Brazil South America| Rio de Janeiro Brazil South America| Bolivia South America|