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Published In: Die Musci der Flora von Buitenzorg 1: 310. 53. 1904. (Musci Buitenzorg) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 1/28/2013)
Acceptance : Accepted
Project Data     (Last Modified On 7/13/2019)
Plant Category: Mosses
country distribution: Ecuador
elevation: 0-500
substrate: rocks
frequency: rare

Notes     (Last Modified On 7/13/2019)
Notes:

Ecology: on wet limestone rock, apparently associated with cyanobacteria; open lowland to premontane. Elevation: near sea level (Ecuador: Galapagos Islands 30 m). Distribution: Mexico, Central America, West Indies, Galapagos Islands, Brazil. This species may be found along the coastal regions of the Atlantic and Pacific. The report of this taxon from Venezuela needs verification.
 
Ecología: Sobre rocas calizas húmedas, aparentemente asociadas con cianobacterias; tierras bajas abiertas. Elevación: cerca al nivel del mar (Ecuador: Islas Galápagos 30 m). Distribución: México, Centro América, Caribe, Islas Galápagos y Brasil.

 

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Plants minute, forming low tufts, dull green to brown. Stems loosely erect, to 3 mm tall, simple or few branched; in cross-section hyalodermis absent, central strand well developed, large; radiculose at base. Leaves distant to somewhat crowded distally, laxly erect to spreading when dry, spreading to wide-spreading when wet, oblong-obovate, to 0.4 mm long, apex obtuse to broadly rounded; margins plane, crenulate-papillose in distal half; costa ca. 3/4 lamina length, weak, superficial cells on both surfaces elongate, 2 cells across ventrally at midleaf, in cross-section elliptical, cells undifferentiated or guide cells positioned centrally, 2 in 1 layer; lamina unistratose; laminal cells lax, upper cells (distal half) hexagonal, uni- to pluripapillose, 1-3 simple papillae over cell lumen; basal cells differentiated across, rectangular, smooth. KOH leaf color reaction yellow, or variously negative to black, pink to deep purple. Gemmae present in distal leaf axils, ellipsoid. Dioicous. Perichaetia terminal; leaves larger, spathulate, sheathing, laminal cells nearly smooth. Setae to 6 mm long, smooth. Capsules erect, urn broadly ovoid to short ellipsoid, to 0.8 mm long; annulus little differentiated; operculalow conic-long rostrate, oblique; peristomeabsent. Calyptrae cucullate, smooth and naked. Spores spherical, finely papillose.
 
Plantas diminutas, formando manojos bajos, verde opacas a pardas. Tallos laxamente erectos, hasta 3 mm de alto, simples o poco ramificados; en corte transversal sin hialodermis, cordón central bien desarrollado, grande; radiculosos en la base. Hojas distantes hasta algo agregadas distalmente, laxamente erectas a patentes en seco, patentes a ampliamente extendidas en húmedo, oblongo-obovadas, hasta 0.4 mm de largo, ápices obtusos a ampliamente redondeados; márgenes planos, crenulado-papilosos la mitad distal; costa ocupando aprox. 3/4 de la longitud de la lámina, débil, células superficiales alargadas en ambas superficies, 2 células de ancho ventralmente en la mitad de la hoja, elíptica en corte transversal, células indiferenciadas o células guía situadas al centro, 2 en 1 capa; lámina uniestratificada; células de la lámina laxas, células superiores (mitad distal) hexagonales, uni- a pluripapilosas, 1-3 papilas simples sobre el lumen celular; células basales diferenciadas transversalmente, rectangulares y lisas. La hoja se torna amarilla en reacción con KOH, o reacción diversamente negativa hasta tornarse negra, rosa a púrpura intenso. Yemas presentes en las axilas de las hojas distales, elipsoides. Dioicas. Periquecios terminales; hojas mayores, espatuladas, envainadoras, células de la lámina casi lisas. Setas hasta 6 mm de largo, lisas. Cápsulas erectas, urna ampliamente ovoide a corto-elipsoide, hasta 0.8 mm de largo; anillo poco diferenciado; opérculo bajo largo-cónico rostrado, oblicuo; sin peristoma. Caliptra cuculada, lisa y desnuda. Esporas esféricas y finamente papilosas.
 


 

 
 
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