Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America

Three new Amaryllidaceae species are described: Nothoscordum elongatum Deble & B. P. Moreira, N. parvum Deble & B. P. Moreira and N. urutauense Deble & H. A. Keller. Nothoscordum elongatum and N. parvum grow in central-eastern Rio Grande do Sul state, while N. urutauense is n...

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Autores principales: Deble, Leonardo Paz, Pinheiro Moreira, Bárbara, Keller, Héctor A.
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Instituto de Botánica del Nordeste 2024
Materias:
Allioideae
bioma Pampa
Campos
Monanthoscordum
Uniflorum
Leucocoryneae
pastizales
Acceso en línea:https://revistas.unne.edu.ar/index.php/bon/article/view/7697
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-7697
record_format ojs
spelling I48-R154-article-76972024-10-24T22:58:59Z Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America Tres nuevas especies de Nothoscordum (Amaryllidaceae) de la ecorregión de los Campos de los Ecosistemas de Pastizales del Río de la Plata, Sudeste de Sudamérica Tres nuevas especies de Nothoscordum (Amaryllidaceae) de la ecorregión de los Campos de los Ecosistemas de Pastizales del Río de la Plata, Sudeste de Sudamérica Deble, Leonardo Paz Pinheiro Moreira, Bárbara Keller, Héctor A. Allioideae bioma Pampa Campos Monanthoscordum Uniflorum Allioideae bioma Pampa Leucocoryneae Monanthoscordum pastizales Uniflorum Three new Amaryllidaceae species are described: Nothoscordum elongatum Deble & B. P. Moreira, N. parvum Deble & B. P. Moreira and N. urutauense Deble & H. A. Keller. Nothoscordum elongatum and N. parvum grow in central-eastern Rio Grande do Sul state, while N. urutauense is narrowly endemic to southern Misiones Province, northeast Argentina. The three new taxa are characterized by a strong alliaceous odor, pilose leaves and scapes, and 1 or 2-flowered inflorescence. Nothoscordum elongatum is segregated from N. marchesii by its densely pilose leaves and scapes (vs. glabrous leaves and scapes), flowers with longer pedicels and ovaries with fewer ovules per locule. Nothoscordum parvum is similar to N. modestum and N. urutauense; however, it can be readily separated from both species by the presence of bulbils surrounding the main bulb, the flowers that are narrowly infundibuliform, fused towards the base for 1.8-2.2 mm, and the scapes that are erect at fruit maturity. Nothoscordum urutauense differs from N. inundatum by its broader leaves, flowers with tepals fused at the base for 0.5-1 mm, and free filaments at base. These three species of Nothoscordum are described, illustrated, compared with morphologically similar taxa, and featured with their geographic distribution. In addition, a key to distinguish the 1- or 2-flowered species of Nothoscordum is proposed. Se describen tres nuevas especies de Amaryllidaceae: Nothoscordum elongatum Deble & B. P. Moreira, N. parvum Deble & B. P. Moreira y N. urutauense Deble & H. A. Keller. Nothoscordum elongatum y N. parvum crecen en el centro-este del estado de Rio Grande do Sul, mientras que N. urutauense es endémico en el sur de la provincia de Misiones, noreste de Argentina. Los tres nuevos taxones se caracterizan por su fuerte olor aliáceo, hojas y escapos pilosos e inflorescencias con 1-2 flores. Nothoscordum elongatum se separa de N. marchesii por sus hojas y escapos densamente pilosos (frente a hojas y escapos glabros), flores con pedicelos más largos y ovario con menos óvulos por lóculo. Nothoscordum parvum es similar a N. modestum y N. urutauense; sin embargo, puede separarse fácilmente por sus bulbos con bulbillos que rodean el bulbo principal, por sus flores estrechamente infundibuliformes, fusionadas hacia la base entre 1,8 y 2,2 mm y por sus escapos erectos en la madurez del fruto. Nothoscordum urutauense se diferencia de N. inundatum por sus hojas más anchas, por sus flores con tépalos fusionados en la base entre 0,5 y 1 mm y por sus filamentos libres en la base. Se describen e ilustran las tres especies de Nothoscordum, además son comparadas con sus taxones morfológicamente similares y se presentan mapas con la distribución de los taxones. También se incluye una clave para la distinción de los taxones de Nothoscordum con 1-2 flores en la inflorescencia. Instituto de Botánica del Nordeste 2024-10-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/bon/article/view/7697 10.30972/bon.3327697 Bonplandia; Vol. 33 No. 2 (2024); 239-255 Bonplandia; Vol. 33 Núm. 2 (2024); 239-255 1853-8460 0524-0476 eng https://revistas.unne.edu.ar/index.php/bon/article/view/7697/7351 Derechos de autor 2024 Bonplandia http://creativecommons.org/licenses/by/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Inglés
format Artículo revista
topic Allioideae
bioma Pampa
Campos
Monanthoscordum
Uniflorum
Allioideae
bioma Pampa
Leucocoryneae
Monanthoscordum
pastizales
Uniflorum
spellingShingle Allioideae
bioma Pampa
Campos
Monanthoscordum
Uniflorum
Allioideae
bioma Pampa
Leucocoryneae
Monanthoscordum
pastizales
Uniflorum
Deble, Leonardo Paz
Pinheiro Moreira, Bárbara
Keller, Héctor A.
Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America
topic_facet Allioideae
bioma Pampa
Campos
Monanthoscordum
Uniflorum
Allioideae
bioma Pampa
Leucocoryneae
Monanthoscordum
pastizales
Uniflorum
author Deble, Leonardo Paz
Pinheiro Moreira, Bárbara
Keller, Héctor A.
author_facet Deble, Leonardo Paz
Pinheiro Moreira, Bárbara
Keller, Héctor A.
author_sort Deble, Leonardo Paz
title Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America
title_short Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America
title_full Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America
title_fullStr Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America
title_full_unstemmed Three new species of Nothoscordum (Amaryllidaceae) from the Campos eco-region of the Grassland Ecosystems of Río de la Plata, Southeast South America
title_sort three new species of nothoscordum (amaryllidaceae) from the campos eco-region of the grassland ecosystems of río de la plata, southeast south america
description Three new Amaryllidaceae species are described: Nothoscordum elongatum Deble & B. P. Moreira, N. parvum Deble & B. P. Moreira and N. urutauense Deble & H. A. Keller. Nothoscordum elongatum and N. parvum grow in central-eastern Rio Grande do Sul state, while N. urutauense is narrowly endemic to southern Misiones Province, northeast Argentina. The three new taxa are characterized by a strong alliaceous odor, pilose leaves and scapes, and 1 or 2-flowered inflorescence. Nothoscordum elongatum is segregated from N. marchesii by its densely pilose leaves and scapes (vs. glabrous leaves and scapes), flowers with longer pedicels and ovaries with fewer ovules per locule. Nothoscordum parvum is similar to N. modestum and N. urutauense; however, it can be readily separated from both species by the presence of bulbils surrounding the main bulb, the flowers that are narrowly infundibuliform, fused towards the base for 1.8-2.2 mm, and the scapes that are erect at fruit maturity. Nothoscordum urutauense differs from N. inundatum by its broader leaves, flowers with tepals fused at the base for 0.5-1 mm, and free filaments at base. These three species of Nothoscordum are described, illustrated, compared with morphologically similar taxa, and featured with their geographic distribution. In addition, a key to distinguish the 1- or 2-flowered species of Nothoscordum is proposed.
publisher Instituto de Botánica del Nordeste
publishDate 2024
url https://revistas.unne.edu.ar/index.php/bon/article/view/7697
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first_indexed 2024-08-21T22:37:11Z
last_indexed 2025-05-17T05:11:31Z
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