Bromus frondosus (Shear) Wooton & Standley (1912: 144), Wooton & Standley, 1912

Saarela, Jeffery M., Peterson, Paul M. & Valdés-Reyna, Jesus, 2014, A taxonomic revision of Bromus (Poaceae: Pooideae: Bromeae) in México and Central America, Phytotaxa 185 (1), pp. 1-147: 88-91

publication ID

http://doi.org/ 10.11646/phytotaxa.185.1.1

DOI

http://doi.org/10.5281/zenodo.5156682

persistent identifier

http://treatment.plazi.org/id/0389862D-DE31-002D-E3DB-FABDE3EA1436

treatment provided by

Felipe

scientific name

Bromus frondosus (Shear) Wooton & Standley (1912: 144)
status

 

11. Bromus frondosus (Shear) Wooton & Standley (1912: 144)   . Figs. 38, 39.

Basionym: Bromus porteri var. frondosus Shear (1900: 37)   . Bromopsis frondosa (Shear) Holub (1973: 167)   . Type:— UNITED STATES OF AMERICA. New México: Grant Co., Mangas Springs, 19 August 1897, J.G. Smith s.n. (holotype US- 81587!).

Plants perennial, not rhizomatous. Culms 54–84 cm tall, 2–4 mm wide at base, erect to spreading, glabrous below inflorescences, nodes 3–5, glabrous, occassionally with a few short hairs. Leaf sheaths sparsely to densely pilose, hairs up to 1.2 mm long; auricles absent; ligules 0.5–2 mm long, glabrous; blades up to 29 cm × 4–6 mm, flat, adaxial and abaxial surfaces usually glabrous, sometimes pubescent, hairs up to 1 mm long distally, margins serrulate. Panicles 9–13 cm × 3–6 cm, open, nodding, branches ascending to spreading, 0.5–5 cm long, shorter or longer than spikelets, scabrous, 1–4 spikelets per branch. Spikelets 1.6–3 cm long, 7–9-flowered, elliptic to lanceolate, terete to moderately laterally compressed; glumes glabrous, scabrous or minutely pubescent, hairs when present sometimes restricted to margins, margins hyaline, midnerves glabrous or scabrous; lower glumes 6–8.5 mm × 0.6–1.0 mm, lanceolate, 3-nerved, green along and between the nerves, apices acute; upper glumes 8–10 mm × 0.9–1.3 mm, oblong-ovate, 3-nerved, green along and between the nerves, apices acute or mucronate, mucros to 1 mm long; lemmas 9–12 mm × 1.5–2.5 mm, elliptic to lanceolate, rounded over the backs, apices truncate, 5–7- nerved, green along and between the nerves, backs glabrous or sparsely to densely pubescent, margins pubescent on lower third to half, hairs up to 1 mm long; awns 3.5–6 mm long, arising 0–0.5 mm below lemma apex, straight;

88 Phytotaxa 185 (1) © 2014 Magnolia Press

SAARELA ET AL.

paleas shorter than the lemmas, 9–10 mm long, backs glabrous or pubescent, keels ciliate, cilia up to 0.2 mm long; anthers 1.5–3.5 mm long; caryopses 6−8 mm long. 2 n = 14 ( Wagnon 1952).

Distribution: ―Native. In México B. frondosus   is known from Chihuahua, Coahuila, Durango, Sinaloa and Sonora ( Fig. 40). It extends northwards to Colorado, New México and Arizona ( Pavlick & Anderton 2007).

Ecology: — Bromus frondosus   is found on rocky slopes and rock outcrops, roadcuts and rocky meadows; associated with Pinus cembroides   , Pinus spp.   , Quercus   , spp., Juniperus deppeana   , Abies religiosa   , Pseudotsuga menziesii   , Cupressus arizonica   , Rhamnus   , Ceanothus   , Arbutus   , Arctostaphylos pungens   , Cercocarpus Kunth   in Humboldt (1824: 6), Salvia   , Platanus wrightii Watson (1875: 349)   , Senecio   and Garrya flavescens Watson (1873: 301)   . Elevation: 1295–2745 m.

Common Names:— Weeping brome (English); bromo frondoso (Spanish).

Comments: ― Bromus frondosus   is distinguished by its 3-nerved lower glumes.

Specimens Examined:― MÉXICO. Chihuahua: Mpio. Madera, Laguna de Babícora , Arroyo Las Varas, [29.0556°N, 106.8611°W], 2300 m, 10 September 1994, G GoogleMaps   . Quintana   & E. Estrada 3556 ( NY); "Rancho el peñasco" km 150 carretera Chihuahua-Cd. Juárez , [29.77°N, 107.37°W], 1720 m, 9 August 1979, M GoogleMaps   . Siqueiros 336 ( MEXU-1098029); 20.3 km NE of Ignacio Zaragoza on MEX 23 View Materials   , [29.75°N, 107.64°W], 2400 m, 28 September 1989, P. M GoogleMaps   . Peterson & R. M   . King 8154 ( CAN, US); 24.7 mi Nof San Juanito on road towards Cuauhtémoc , 28.2636°N, 107.4931°W, 2233 m, 5 September 2008, P. M GoogleMaps   . Peterson & J. M   . Saarela 22028 ( CAN, US); 30.2 km N of San Juanito on road to Creel , [28.26°N, 107.61°W], 2235 m, 10 September 1989, P. M GoogleMaps   . Peterson, C. R   . Annable & Y   . Herrera-Arrieta 8002 ( CAN, MO, US); 34 mi Wof Balleza on road towards Guachochic , [27.12°N, 106.79°W], 2500 m, 29 October 1995, P. M GoogleMaps   . Peterson, M. B   . Knowles, C. H   . Dietrich & S. M   . Braxton 13539 ( US); 8 mi Nof Santo Tomás , 28.81°N, 107.5667°W, 2010 m, 8 October 1953, J. R GoogleMaps   . Reeder & C. G   . Reeder 2625 ( US- 2473583); ca. 23 (air) mi ENE of Villa Ahumada in NW   canyon of Sierra de la Alcaparra NE of Rancho El Palmar , 30.6667°N, 106.1°W, 6000 ft [1828 m], 12 September 1973, J GoogleMaps   . Henrickson 12864 ( MEXU-1052580, RSA-POM- 665758); Colonia Cumbres de Majalca , 33.8 km Wof     MEX 45 View Materials , Nof Chihuahua City , [28.8°N, 106.46°W], 2190 GoogleMaps  

ATAXONOMIC REVISION OF BROMUS (POACEAE)  

Phytotaxa 185 (1) © 2014 Magnolia Press 89 m, 7 September 1989, P. M   . Peterson, C. R   . Annable & Y   . Herrera-Arrieta 7969 ( CAN, US); km 11 entre San Bueneventura y El Carmen, carratera Nuevo Casas Grandes , 29.84°N, 107.47°W, 1600 m, 19 September 1955, E GoogleMaps   . Hernández X. & V   . Mathus L   . N-1941 ( GH); km 18 de San José Babícora a Santa Ana Babícora, 2200 m, 30 October 1954, E   . Hernández X. & C   . Tapia J   . N-438 ( GH); Majalca (Pilares), [28.68°N, 106.11°W], 12 September 1939, L. H GoogleMaps   . Harvey 1485 ( GH, mixed sheet with B. carinatus var. carinatus   ); Majalca , [28.73°N, 106.1°W], 18–20 September 1935, H GoogleMaps   . LeSueur 30 ( GH); Majalca , NW of Chihuahua, [28.73°N, 106.1°W], 2050–2100 m, 29 September 1934, F. W GoogleMaps   . Pennell 19299 ( GH); near Colonia Garcia   , [29.97°N, 108.35°W], 7500 ft [2286 m], 14 September 1899, C. H. T GoogleMaps   . Townsend & C. M   . Barber ( MSC-229571); Río Negro , 28 August 1937, H   . LeSueur 0213 ( GH); San Ysidro, SW of Barranca, [28.5667°N, 107.45°W], 13 May 1929, Y GoogleMaps   . Mexia 2524 ( MICH-1119284, NY, RSA-POM-364164); Sánchez , [31.77°N, 107.64°W], 8000 ft [2438 m], 12 October 1910, A. S GoogleMaps   . Hitchcock s.n. ( MEXU); Santa Clara Canyon , [29.72°N, 107.08°W], 18 August 1936, H GoogleMaps   . LeSueur 0123 ( GH); Sierra de los Órganos, 28.25°N, 104.75°W, 9 August 1937, H GoogleMaps   . LeSueur 211 ( GH, mixed sheet with B. carinatus var. marginatus   ), US-1721654   ); Sierra Madre Mts. , Colonia Juárez, [30.3°N, 108.06°W], 6000 ft [1829 m], 12 September 1903, M. E GoogleMaps   . Jones s.n. ( RSA-POM-112405); Sierra Madre Mts. , Meadow Valley, [30.3°N, 108.06°W], 7000 ft [2134 m], 17 September 1903, M. E GoogleMaps   . Jones s.n. ( RSA-POM-112403); Sierra Madre Occidental, 12.1 mi W of San Juanito on road towards Baquiriachic , 27.9567°N, 107.76°W, 2530 m, 5 October 2000, P. M GoogleMaps   . Peterson & J   . Cayouette 15358 ( CAN, US); Sierra Madre Occidental , 16.7 mi Wof Baquiriachic on Hwy. 16 towards Maycoba, 28.3543°N, 108.28°W, 2000 m, 4 October 2000, P. M GoogleMaps   . Peterson & J   . Cayouette 15353 ( CAN, MO, US); Sierra Madre Occidental , 20.3 mi Sof Creel on road towards Rocheachic, 27.5387°N, 107.51°W, 2510 m, 5 October 2000, P. M GoogleMaps   . Peterson & J   . Cayouette 15368 ( CAN, US); Sierra Madres near Colonia Garcia   , [29.97°N, 108.34°W], 7500 ft [2286 m], 14 September 1899, C. H. T GoogleMaps   . Townsend & C. M   . Barber 327 (F-103052, MEXU-5764, MICH- 1119280, MSC-229571, NY, 2 sheets); SW slope of Sierra de la Ranchería (on Rancho Candelaria ), 31.0167°N, 106.35°W, 1500–2180 m, 29 October 1972, T. L GoogleMaps   . Wendt, F   . Chiang & M. C   . Johnston 9949 ( MEXU-729813, NY); 19.6 km Wof Balleza and 74.2 km Eof Guachochi, [26.9453°N, 106.4783°W], 2120 m, 18 September 1991, P. M GoogleMaps   . Peterson, C. R   . Annable & J   . Valdés-Reyna 10753 ( US); along dirt road to Cuesta Blanca in Sierra Brena SW of Colonia Juárez, 2256 m, 21 September 1992, K. W   . Allred, T   . Columbus & J   . Valdés-Reyna 5727 ( ANSM); 19.6 km Wof Balleza and 74.2 km Eof Guachochi, 2120 m, 18 September 1991, P. M   . Peterson, C. R   . Annable & J   . Valdés- Reyna   10753 ( US); Boycoyna, La Junta, Alrededores, 13 September 2003, R   . Bye, M   . Mendoza, G   . Morales, J   . Rodríguez   & M. Hilerio 32463 ( US-3589121); Creel , Chih. 125 Creel km 90, Sitio 125 km 96.2, La Mesa de Yeguachi, 27°47.155’N, 107°38.611’W, 2248 m, 13 September 2003, R GoogleMaps   . Bye, M   . Mendoza, G   . Morales, J   . Rodríguez   & M. Hilerio 32541 ( US-3589119); Guachochi , Norogachi, Planicie, 16 September 2003, R   . Bye, M   . Mendoza, G   . Morales, J   . Rodríguez   & M. Hilerio 32771 ( US-3589146). Coahuila: Mpio. Saltillo, area montañosa del Cañón " San Lorenzo", 25.3167°N, 101.95°W, 2000 m, M. G GoogleMaps   . Villaseñor s.n. ( ANSM); Sierra del Carmen , 28.9867°N, 102.9739°W, 2432 m, 30 August 1997, S GoogleMaps   . Wood, C   . Crider & D. Doan-Crider s.n. ( ANSM); Maderas del Carmen , 2.0 mi from Campo Uno, up the road towards the summit, 29.0062°N, 102.6054°W, 2571 m, 22 September 2007, P. M GoogleMaps   . Peterson, J. M   . Saarela, S   . Lara Contreras & J   . Reyna   Álvarez 21029 ( CAN, MO, US); Sierra El Jardín, 29.0832°N, 102.6371°W, 2100 m, 3 September 2006, P. M GoogleMaps   . Peterson & S   . Lara-Contreras 19941 ( CAN, US). Durango : Sierra Madre Occidental, 11 mi NE of Ojito de Camillones on road towards Papasquiaro, 25.0912°N, 106.136°W, 2580 m, 12 October 2000, P. M GoogleMaps   . Peterson, J   . Cayouette & M. S   . González-Elizondo 15436 ( US); Sierra Madre Occidental, Wof Ciudad Durango , 6 mi Wof El Salto, 23.7418°N, 105.452°W, 2745 m, 27 August 1958, J. R GoogleMaps   . Reeder & C. G   . Reeder 3123 ( US-2473577); 30 km Wof Durango on Hwy. 40, just Eof Rio Chico crossing, 2200 m, 29 September 1988, P. M   . Peterson & C. R   . Annable 6007 ( US). Sinaloa: loop of the Río de Bavispe , NE   Sonora, Cerro del Capulín , NW of Aribabi, 30.1°N, 109.083°W, 1875 m, 4 September 1939, L. H GoogleMaps   . Harvey 1693 ( US-1762717); Morelos, 30.8167°N, 109.2167°W, 15 September 1947, J GoogleMaps   . Vera-Santos 1939 ( US- 2079260); region of the Río de Bavispe , NE   Sonora, El Bilito, NE of El Tigre , 30.61°N, 109.17°W, 1890 m, 12 October 1941, J GoogleMaps   . Vera-Santos 2128 ( US-1938696). Sonora: Arroyo Hondo, 11.5 km Eof El Kipor, 4 km Wof Chihuahua border on Son., 28.4417°N, 108.78°W, 1460 m, 11 September 1996, T. R GoogleMaps   . Van Devender, A.L. Reina G., G. Ferguson & L. Coyote   96-563 ( ARIZ-332596, RSA-POM-610275); Cerro El Capulín, NW of Aribabi , [29.91°N, 109.99°W], 1875 m, 4 November 1939, L. H GoogleMaps   . Harvey 1693 ( MICH-1119279); El Bilito, NE of El Tigre , [30.59°N, 109.22°W], 6200 ft [1890 m], 12 October 1941, J GoogleMaps   . Vera Santos 2128   ( MICH-1119213) & 2136 ( NY); El Picacho del Pilar , 7400 ft [2255 m], 13 October 1941, J   . Vera Santos 2167   ( MICH-1119124); El Puerto del Cumarito , Sierra de la Cabellera, [30.92°N, 109.11°W], 5400 ft [1646 m], 6 October 1941, J GoogleMaps   . Vera Santos 2079  

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(MICH-1119282, NY); El Rancho de Robles, NE of El Tigre, [30.76°N, 109.18°W], 6000 ft [1829 m], 2–13 September 1941, J. Vera Santos 1939   (ARIZ-124777, MICH-1119278, MEXU-537473, NY, US-1938676); La Matancita, 1 mi Wof El Tigre, [30.76°N, 109.18°W], 4250 ft [1295 m], 30 August 1941, J. Vera Santos 1915   (ARIZ-124955, MICH-1119277, MEXU-537476, NY, US-1938674); Morelos, 15 September 1947, J. Vera Santos 1915   (MICH-119276); Nof Cananea Ejido José María Morelos, [30.98°N, 110.3°W], 25 September 1981, A.A. Beetle M-7869 (ARIZ-234251, MEXU, MO); region of the Río de Bavispe, NE Sonora, El Puerto del Cumarito, Sierra de la Cabellera, 30.0333°N, 109.3333°W, 1646 m, 6 October 1941, J. Vera-Santos 2079 (US-2463582, US- 1938690); Sierra Madre Occidental, 1.7 mi Wof Maycoba on Hwy. 16 towards Yécora, 28.4065°N, 108.68°W, 1720 m, 4 October 2000, P.M. Peterson & J. Cayouette 15351 ( US); Sierra Madre Occidental, 1.8 mi Wof Yécora on Hwy. 16 towards Hermosillo, 28.3583°N, 108.95°W, 1860 m, 3 October 2000, P.M. Peterson & J. Cayouette 15315, 15317 (CAN, MO, US); Sierra Madre Occidental, 12.3 mi Wof Yécora on Hwy. 16 towards Hermosillo, 28.3772°N, 109.05°W, 1810 m, 3 October 2000, P.M. Peterson & J. Cayouette 15305 ( US); Sierra Madre Occidental, 16 mi Wof Maycoba on Hwy. 16 towards Yécora, 28.4002°N, 108.8°W, 1520 m, 4 October 2000, P.M. Peterson & J. Cayouette 15346 ( US).

ATAXONOMIC REVISION OF BROMUS (POACEAE)  

Phytotaxa 185 (1) © 2014 Magnolia Press 91

G

Conservatoire et Jardin botaniques de la Ville de Genève

NY

William and Lynda Steere Herbarium of the New York Botanical Garden

M

Botanische Staatssammlung München

NE

University of New England

P

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

R

Departamento de Geologia, Universidad de Chile

US

University of Stellenbosch

Nof

Nanjing University

J

University of the Witwatersrand

N

Nanjing University

C

University of Copenhagen

Y

Yale University

MO

Missouri Botanical Garden

Wof

Naturhistorisches Museum Wien

B

Botanischer Garten und Botanisches Museum Berlin-Dahlem, Zentraleinrichtung der Freien Universitaet

H

University of Helsinki

S

Department of Botany, Swedish Museum of Natural History

E

Royal Botanic Garden Edinburgh

V

Royal British Columbia Museum - Herbarium

L

Nationaal Herbarium Nederland, Leiden University branch

GH

Harvard University - Gray Herbarium

F

Field Museum of Natural History, Botany Department

W

Naturhistorisches Museum Wien

T

Tavera, Department of Geology and Geophysics

A

Harvard University - Arnold Arboretum

MEXU

Universidad Nacional Autónoma de México

Sof

Department of Botany, Swedish Museum of Natural History

K

Royal Botanic Gardens

ANSM

Universidad Autónoma Agraria Antonio Narro

Eof

Royal Botanic Garden Edinburgh

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Poales

Family

Poaceae

Genus

Bromus