Bouteloua juncea (Desvaux. ex Beauvois) Hitchcock (1913: 343)

Sandoval-Ortega, Manuel Higinio, 2023, Taxonomy of Bouteloua juncea and Bouteloua triaena, two species confused for more than a century, Phytotaxa 612 (3), pp. 261-271 : 262-263

publication ID

https://doi.org/ 10.11646/phytotaxa.612.3.2

DOI

https://doi.org/10.5281/zenodo.8335181

persistent identifier

https://treatment.plazi.org/id/03C88798-FFAB-2251-FF1B-76FE609A3EE7

treatment provided by

Plazi

scientific name

Bouteloua juncea (Desvaux. ex Beauvois) Hitchcock (1913: 343)
status

 

Bouteloua juncea (Desvaux. ex Beauvois) Hitchcock (1913: 343) View in CoL View at ENA . Fig. 1 View FIGURE 1 .

Triaena juncea (Desvaux ex Beauvois) Griffiths (1912: 354) View in CoL .

Cynodon junceus (Desvaux ex Beauvois) Raspail (1825: 303) View in CoL .

Eutriana juncea (Desvaux ex Beauvois) Trinius (1824: 238) View in CoL .

Atheropogon domingensis Sprengel (1825: 293) View in CoL .

Triathera juncea Desvaux ex Beauvois View in CoL (in Beauvois 1812: 40).

Lectotype (designated by Sandoval-Ortega et al. 2019): — Plate IX, figure IVa-d in Essai d’une Nouvelle Agrostographie 1812. Epitype (designated by Sandoval-Ortega et al. 2019): — DOMINICAN REPUBLIC, Barahona, Quita Coraza: Entrada a Pueblo Quita Coraza , orilla de carretera, 18°28’16.7”N 71° 3’37.7”W, 126 m., 19 June 2018, Sandoval-Ortega 1006 ( HUAA 30899 About HUAA !) GoogleMaps .

Description:— Herbs perennial, stoloniferous, tufted; culms 10–20 cm tall, thin, the fertile ones erect, ascending or geniculate, nodes pubescent; leaves with glabrous sheath, blade flat or involute, 8–50 × 1–1.2 mm; ligule a membrane, long ciliate ( Fig. 2A View FIGURE 2 ), trichomes 0.3–0.5 mm long; synflorescence a terminal spike 1–2(3) cm long ( Fig. 2B View FIGURE 2 ); spikelets (8)10–25(35), drooping, solitary ( Fig. 2B and 2C View FIGURE 2 ); glumes linear lanceolate, 1-nerved, acuminate, distinct, the first ca. 1 mm long, the second 2–2.5 mm long ( Fig. 2D View FIGURE 2 ); fertile floret 1 ( Fig. 2E View FIGURE 2 ), lemma ovate elliptic 2–3 mm long, 3-nerved, apex 3-mucronate ( Fig. 2F View FIGURE 2 ), palea ovate-lanceolate, shorter than lemma, ca. 2 mm long, apex 2-mucronate ( Fig. 2G View FIGURE 2 ); sterile floret 1, reduced to a short column with three scabrous awns ≤ 1 cm long ( Fig. 2H View FIGURE 2 ); caryopsis oblong-elliptic, ca 1.5 mm long ( Fig. 2I View FIGURE 2 ).

Phenology:— Specimens with spikelets have been collected from March to June.

Distribution and habitat:— Cuba, Haiti, the Dominican Republic, Puerto Rico, and the Virgin Islands ( Fig. 3 View FIGURE 3 ). It grows close to the coast in coastal and subcoastal xeric scrub, microphyllous evergreen forest and dry forest, between -30 and 400 m.

Examined material:— CUBA. Granma: Farallón de El Dudoso , oeste de ensenada de Mora -Pilón- (Oriente), 30 December 1938, León 18610 ( HAC) . Guantánamo: US Naval Base , Guantánamo bay, Kittery Beach , ca. 0 m., 19°53’45.7’’N 75°77’51.1’’W, 4 October 1996, Areces 6540 ( UPRM) ; Imías , 5 February 1976, Catasús 979 ( HAC) ; Orillas de la Vía Azul, Yacabo, 12 January 1960, Alain & Acuña 7483 ( HAC) ; Zona seca Baitiquiri, Sur de Baracua , Provincia Oritente, 12 January 1969, Alain s.n. ( HAC) ; Macambo , 28 May 1982, Bisse s.n. ( HAC) ; Imías , camino de Yacabo arriba, 7 February 1976, Bisse s.n. ( HAC) ; La Chivera, 23 May 1982, Günther s.n. ( HAJB) ; Imías , Por el camino a Yacabo Arriba . Guantánamo, 7 February 1976, Catasús s.n. ( HAJB) ; Playa Borracho , 6 July 1984, Bermúdez 2221 ( HAJB) ; Próximo a San Antonio del Sur . Guantánamo, 25 November 1978, Catasús 1189 ( HAJB) ; Vía Azul , 12 January 1960, Alain 7483 ( HAJB) . HAITI. Dept . Ouest: Montagnes du Trou d’Eau, Between Source Matelas and Source Puantes, 15 October 1924, Ekman 1057 ( P) . DOMINICAN REPUBLIC. Azua: al N de la población, Howard 8640 ( USD) ; a 2.3 km al NO de la entrada al poblado de Hatillo, 30 m., 16 September 1999, Veloz 1776 ( JBSD) ; Hatillo, Entrada al pueblo Hatillo, orilla de carretera, 126 m., 18°24’00’’N 70°31’53.1’’W, 19 June 2018, Sandoval-Ortega 1005 ( JBSD, HUAA, USON) GoogleMaps ; Dry hills N of Azua, 29 August 1946, Howard 8640 ( P) . Barahona: Las Salinas, 19 August 1946, Howard 8363 ( USD) ; 2 km desde Fondo Negro en la carretera a Quita Coraza y Azua, 100 m., 18°27´N 71°05´W, 15 June 1982, Zanoni 20935, ( JBSD) GoogleMaps ; Quita Coraza: Entrada a Pueblo Quita Coraza , orilla de carretera, 126 m., 18°28’16.7”N 71°3’37.7”W, 19 June 2018, Sandoval-Ortega 1006 ( JBSD, HUAA, USON) GoogleMaps . Independencia: Hoya de Enriquillo , 10 km al oeste de Duverge, en el camino viejo a Jimaní, en la orilla del lago Enriquillo, - 30 m., 18°25´N 71°37´W, 16 April 1987, Zanoni 39083 ( JBSD) GoogleMaps . Monte Cristi: 2 km antes de la ciudad, entre ésta y el poblado El Rincón, 10– 20 m., 19°47´N 71°38´W, 16 August 1984, García 168 ( JBSD) GoogleMaps . Peravia: Aprox. 3 km al este de Las Calderas (o 18.5 km desde Baní en la carretera a Las Calderas), 30 m., 18°13´N 70°28´W, 23 July 1982, Zanoni 22016 ( JBSD) GoogleMaps ; Baní, 8 km al Oeste de Baní , 28 August 1946, Howard 8627 ( USD, P) ; Carretera Baní-Azua , 20 m., 23 June 2006, Siqueiros-Delgado s.n. ( HUAA, IEB) ; Matanzas, Playa Matanzas , 18°13’53.6’’N 70°24’45.0’’W, 19 June 2018, Sandoval-Ortega 1004 ( JBSD, HUAA, USON) GoogleMaps . Valverde: 1.5 km al NE del cruce Los Quemados , sobre una loma en el lado N de la carretera hacia Mao, 180 m., 19°30’N 71°9.5´W, 9 June 1987, García 2216 ( JBSD) GoogleMaps . PUERTO RICO. Guánica: Bo. Montalva , Guanica Forest Reserve , along dirt road over Monte de la Brea to seashore, 5– 20 m., 17°56.03´N 66°56.34´W, 26 March 1995, Axelrod 8856 ( UPRRP) GoogleMaps ; Bo. Montalva, Guanica Forest Reserve , along dirt road over Monte de la Brea to seashore, 5– 20 m., 17°56.03´N 66°56.34´W, 26 March 1995, Axelrod 8862 ( UPRRP) GoogleMaps ; Montalva , Monte de la Brea , Guanica Forest Reserve . From road 325 taking a dirt road south to Punta Manguillo, 12 m., 17°56’11’’N 66°56’33’’W, 20 November 2004, Monsegur 278, ( UPRM) GoogleMaps ; Punta La Brea , 30 m., 17°56’11’’N 66°56’3’’W, 30 June 20018 Sandoval-Ortega 1007, ( UPRRP, HUAA, USON) GoogleMaps ; Guanica State Forest: Barrio Montalva. Interior slopes of Monte de la Brea, 40– 50 m., 9 December 1987, Proctor 44315 ( HAJB) . VIRGIN ISLANDS. Salt Island , S of Tortola, NW bay, ca. 10 m., 22 June 1968, Byer 68-1729 ( UPRRP) .

HAC

Instituto de Ecología y Sistemática

US

University of Stellenbosch

UPRM

University of Puerto Rico at Mayagueez, Rhizobium Culture Collection

HAJB

Jardín Botánico Nacional

P

Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants

N

Nanjing University

USD

University of South Dakota

JBSD

Jardín Botánico Nacional Dr. Rafael M. Moscoso

HUAA

Universidad Autónoma de Aquascalientes

USON

Universidad de Sonora

IEB

Instituto de Ecología, A.C.

NE

University of New England

UPRRP

University of Puerto Rico at Rio Piedras

S

Department of Botany, Swedish Museum of Natural History

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Poales

Family

Poaceae

Genus

Bouteloua

Loc

Bouteloua juncea (Desvaux. ex Beauvois) Hitchcock (1913: 343)

Sandoval-Ortega, Manuel Higinio 2023
2023
Loc

Bouteloua juncea (Desvaux. ex Beauvois) Hitchcock (1913: 343)

Hitchcock, A. S. 1913: )
1913
Loc

Triaena juncea (Desvaux ex Beauvois)

Griffiths, D. 1912: )
1912
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