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Published In: Journal of the Linnean Society, Botany 12: 471. 1869. (J. Linn. Soc., Bot.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 5/7/2009)
Acceptance : Accepted
Project Data     (Last Modified On 10/31/2017)
Plant Category: Moss
EcoRegions: Amazon, Yungas montane forest
Elevation: 0-500, 500-1000
Substrate: treelets and trees
Frequency: rare

Notes     (Last Modified On 10/31/2017)
general taxon notes:
Ecology. Amazon forest to Yungas premontane forest; on trunk and branches of trees. Elevation. 305-615 m. Distribution. Bolivia: Cochabamba. World range: Colombia, Bolivia and Brazilian Amazon.
 
Ecología. Bosque amazónico a bosque premontano de Yungas; Sitios parcial a totalmente sombreados, sobre troncos y ramas de árboles. Altitud. 305-615 m. Distribución. Bolivia: Cochabamba. Distribución mundial: Colombia, Bolivia y amazonia de Brasil.
 
Meiothecium revolubile is characterized by the elliptic-oblong leaves (to 1.3 mm), absence of a costa, inflated and thick-walled, mostly oval to short oblong alar cells; hyaline to white, separated and widely spaced exostome teeth. This species should be expected along the transitional Yungas premontane and Amazon forests in the departments of Beni, La Paz and Santa Cruz.
 
Meiothecium revolubile se caracteriza por las hojas elíptico-oblongas (hasta 1.3 mm), sin costa, células alar infladas y con paredes gruesas, generalmente ovales a corto oblongas; dientes del exostoma hialinos a blancos, separados y muy espaciados. Esta especie puede ser encontrada en el bosque premontano de Yungas y el bosque amazónico de los departamentos de Beni, La Paz y Santa Cruz.

 

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Plants rather small, forming thin mats, green to yellowish-green or brown. Stems spreading, distally stems and branches subascending; central strand absent; radiculose. Leaves erect-appressed, oblong-elliptic, 0.8-1.2 mm long, to 0.5 mm wide, plicate and concave, apex abruptly short acute to acute-rounded; margins reflexed throughout except at apex, entire or weakly serrulate at apex; ecostate; laminal cells thick-walled, apical cells short, 10-18 µm long; upper median cells oval-oblong, 18-30 µm; mid and lower cells oblong-linear; basal cells shorter, porose; insertion cells golden; alar region differentiated, cells inflated, oblong-oval, 35-40 µm long, 15-22 µm wide, thick-walled, golden. Autoicous. Perichaetia lateral; leaves differentiated, oblong-lanceolate, to 1.5 mm long, distal margins sharply serrate. Setae elongate and slightly curved, 3.5-5 mm long, smooth. Capsules suberect, urn ovoid-cylindrical, ca. 1 mm long; exothecial cells short rectangular, 30-50 µm long, 15-20 µm wide, collenchymatous; stomata few at urn base, superficial; opercula not observed; peristome single, set below mouth, teeth 16, to 220 µm long, 20 µm wide at base, widely spaced, narrow, finely papillose-spiculose. Calyptrae not observed. Spores spherical, ca. 24-26 µm in diameter, coarsely papillose-spiculose.

 

Plantas muy pequeñas, formando matas delgadas, verdes a verde-amarillentas o pardas. Tallos patentes, distalmente tallos y ramas subascendentes; sin cordón central; radiculosos. Hojas erecto-adpresas, oblongo-elípticas, 0.8-1.2 mm de largo, hasta 0.5 mm de ancho, plegadas y cóncavas, ápices abruptamente cortos agudos a agudo-redondeados; márgenes totalmente reflexos excepto en el ápice, enteros o débilmente serrulados en el ápice; ecostadas; células de la lámina con paredes gruesas, células apicales cortas, 10-18 µm de largo; células superiores medias ovales-oblongas, 18-30 µm; células mediales e inferiores oblongo-lineales; células basales cortas, porosas; células de la inserción doradas; región alar diferenciada, células infladas, oblongo-ovales, 35-40 µm de largo, 15-22 µm de ancho, paredes gruesas, doradas. Autoicas. Periquecios laterales; hojas diferenciadas, oblongo-lanceoladas, hasta 1.5 mm de largo, márgenes distales nítidamente serrados. Setas alargadas y escasamente curvadas, 3.5-5 mm de largo, lisas. Cápsulas suberectas, urna ovoide-cilíndrica, ca. 1 mm de largo; células exoteciales corto rectangulares, 30-50 µm de largo, 15-20 µm de ancho, colenquimatosas; pocos estomas en la base de la urna, superficiales; opérculos no observados; peristoma simple, ubicado debajo de la boca, 16 dientes, hasta 220 µm de largo, 20 µm de ancho en la base, bastante espaciados, angostos, finamente papiloso-espiculados. Caliptra no observada. Esporas esféricas, ca. 24-26 µm de diámetro, gruesamente papiloso-espiculadas.

 
 


 

 
 
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