Tropicos | Name - !Schroeterella Herzog

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!Schroeterella Herzog

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Project Name Data (Last Modified On 10/27/2012)

Acceptance : Accepted

Project Data (Last Modified On 10/31/2017)

Plant Category: Moss

Notes (Last Modified On 10/31/2017)

general taxon notes:

Schroeterella is a neotropical genus with two species (Câmara & Carvalho-Silva 2013). The sporophyte characters that distinguish Schroeterella and appear to be unique to the genus are: exostomial teeth 8-paired with acute rounded tips, reflexed when dry, and endostome represented solely by narrow cilia about 2/3 the length of the exostome; the alar cells are also distinctive, obliquely arranged similar to Acroporium. The generic name honors, according to Herzog, “Dr. C. Schröter, Professor de Botanik an der Eidgenöss. Technischen Hochschule in Zürich.”

Schroeterella es un género neotropical de dos especies (Câmara & Carvalho-Silva 2013). Las características del esporofito diferencian a Schroeterella y parecen ser únicas en este género, 8-pares de dientes del exostoma con extremos redondeados agudos, reflexo cuando seco, y endostoma representado sólo por cílios angostos ca. 2/3 de la longitud del exostoma; también células alares están ordenadas oblicuamente. El nombre genérico, según Herzog honra a, “Dr. C. Schröter, Professor de Botanik an der Eidgenöss. Technischen Hochschule in Zürich.”

Reference List (Last Modified On 10/31/2017)

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Plants small, forming lax tufts, yellowish-green. Stems and branches ascending from short creeping stems, to 8 mm long; rhizoid numerous beneath creeping stems. Leaves rather rigid, spirally arranged, lanceolate to oblong-lanceolate, 0.8-1.1 mm, gradually acuminate; margins reflexed, entire; costa absent; laminal cells linear-fusiform, rather thick-walled, apical cells shorter; alar cells oblong-oval, hyaline to yellowish, rather thick-walled, supra-alar cells few, in ca. 2 rows, subquadrate. Autoicous. Setae 2-8 mm long, smooth. Capsules erect, urn narrowly pyriform to oblong, 0.6-1.5 mm long; exothecial cells irregularly collenchymatous; opercula rostrate, oblique; peristome double, exostome reflexed when dry, teeth in 8 pairs, broadly lanceolate with tips acute-rounded, finely papillose; endostome consisting of linear or narrowly lanceolate cilia, shorter than exostome teeth, ca. 2/3 the length. Calyptrae cucullate, naked and smooth. Spores not observed.

Plantas pequeñas, formando manojos laxos, verde-amarillentas. Tallos y ramas ascendentes desde tallos cortos reptantes, a 8 mm de largo; numerosos rizoides debajo de los tallos reptantes. Hojas bastante rígidas, dispuestas en espiral, lanceoladas a oblongo-lanceoladas, 0.8-1.1 mm, gradualmente acuminadas; márgenes reflexos, enteros; costa ausente; células de la lámina lineo-fusiformes, con paredes muy gruesas, células apicales cortas; células alares oblongo-ovales, hialinas a amarillentas, paredes muy gruesas, pocas células supra-alares, en ca. 2 filas, subcuadradas. Autoicas. Setas 2-8 mm de largo, lisas. Cápsulas erectas, urna angostamente piriforme o oblongo, 0.6-1.5 mm de largo; células exoteciales irregularmente colenquimatosas; opérculo rostrado, oblicuo; peristoma doble, exostoma reflexo cuando seco, dientes en 8 pares, anchamente lanceolados con extremos agudo-redondeados, finamente papilosos; endostoma consistente en cilios lineales o angostamente lanceolados, más cortos a los dientes del exostoma, ca. 2/3 de su longitud. Caliptra cuculada, desnuda y lisa. Esporas no observadas.