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Published In: AAU Reports 35: 194. 1994. (AAU Rep.) Name publication detail
 

Project Name Data (Last Modified On 9/13/2009)
Acceptance : Accepted
Project Data     (Last Modified On 10/24/2020)
Plant Category: Mosses
country distribution: Venezuela, Colombia, Ecuador
EcoRegions: Montane Forest
elevation: 500-1000, 1000-1500, 1500-2000, 2000-2500, 2500-3000
substrate: treelets and trees
frequency: rare

Notes     (Last Modified On 10/24/2020)
Notes:
Ecology: Premontane to upper montane forest; exposed to partially shaded sites, epiphytic, on tree branches. Elevation: 925-2925 m (Venezuela: 1500-2500 m, Colombia: 1850-2925 m, Ecuador: 925-2500 m). Distribution: Mexico, Central America, Venezuela to Ecuador, and southeast Brazil.
 
A likely means of reproduction is asexual for S. imbricatifolius via the fragile flagellate branches; sporophytes appear to be rare. Synonyms include Symphyodon americanus Steere and S. machrisianus (H. A. Crum) W. R. Buck & Ireland (Taxiphyllum machrisianum H. A. Crum).
 
Ecología: Crece en bosques premontanos a montanos altos; en sitios expuestos a parcialmente sombreados, epífita, sobre ramas de árboles. Elevación: 925-2925 m (Venezuela: 1500-2500 m, Colombia: 1850-2925 m, Ecuador: 925-2500). Distribución: México, Centroamérica, Venezuela a Ecuador, y sudeste de Brasil.
 
Es probable que S. imbricatifolius se reproduzca asexualmente mediante ramas flageladas frágiles; los esporofitos parecen ser raros.


 

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Plants rather small, forming loose to dense mats, glossy green to yellowish-green or golden-brown. Stems and branches spreading, occasionally pendent, irregularly pinnately branched, flagellate branches fragile; in cross-section outer 2-3 rows of cells small, thick-walled, inner cells large, thin-walled, central strand weak; pseudoparaphyllia foliose. Leaves weakly complanate, erect-spreading, ovate to ovate- or oblong-lanceolate, 0.7-1 mm long, somewhat asymmetric, apex acute to broadly short acuminate, base short decurrent; margins plane, serrulate to serrate to near base; costae short and forked, often separated; median cells oblong-linear, vermicular, 30-60 µm long, 3-6 µm wide, smooth or slightly projecting at distal cell angles; alar cells somewhat differentiated, with ca. 3-10 cells, quadrate to short oblong; marginal cells narrow and longer. Dioicous. Perichaetia lateral; leaves longer and narrower than stem leaves. Setae elongate, to 20 mm long, slender, smooth below, distally mammillose or papillose. Capsules erect, urn ovoid, 1.5-2 mm long, symmetric, surface with short projecting spines; opercula conic-rostrate, ca. 0.8 mm long; peristome double, exostome smooth and slightly furrowed at base, distally lightly papillose; endostome narrower, perforate, papillose, cilia absent. Calyptrae not observed. Spores spherical, 13-18 µm in diameter, finely papillose.
 
Plantas más bien pequeñas, formando tapices laxos a densos, verde brillantes a verde-amarillentas o pardo-doradas. Tallos y ramas extendidos, ocasionalmente péndulos, irregularmente pinnados, ramas flageladas frágiles; en sección transversal con 2-3 hileras externas de células pequeñas, de paredes gruesas, células internas grandes, con paredes delgadas, cordón central débil; pseudoparáfilos foliosos. Hojas débilmente complanadas, erecto-extendidas, ovadas a ovado- u oblongo-lanceoladas, 0.7-1 mm de largo, algo asimétricas, ápice agudo a anchamente corto acuminado, base corto decurrente; márgenes planos, serrulados a serrados hasta la base; costa corta y bifurcada, generalmente separada; células mediales oblongo-lineales, vermiculares, 30-60 µm de largo, 3-6 µm de ancho, lisas o con los ángulos celulares distales proyectándose ligeramente; células alares algo diferenciadas, con aprox. 3-10 células, cuadradas a corto oblongas; células marginales angostas y más largas. Dioicas. Periquecios laterales; hojas más largas y más angostas que las del tallo. Setas elongadas, hasta 20 mm de largo, delgadas, lisas abajo, mamilosas o papilosas distalmente. Cápsulas erectas, urna ovoide, 1.5-2 mm de largo, simétrica, superficie con espinas cortas proyectadas; opérculo cónico-rostrado, aprox. 0.8 mm de largo; peristoma doble, exostoma liso y ligeramente surcado en la base, ligeramente papiloso distalmente; endostoma más angosto, perforado, papiloso, cilios ausentes. Caliptra no observada. Esporas esféricas de 13-18 µm de diámetro, finamente papilosas.
 
 


 

 
 
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