Linum pringlei S.Watson (1888: 269)

González-Velasco, Juan, Burgos-Hernández, Mireya, Galván-Escobedo, Iris G. & Castillo-Campos, Gonzalo, 2022, Taxonomic update of the flax family in Mexico, Phytotaxa 549 (2), pp. 141-184 : 165

publication ID

https://doi.org/ 10.11646/phytotaxa.549.2.3

DOI

https://doi.org/10.5281/zenodo.6622799

persistent identifier

https://treatment.plazi.org/id/B3008796-0D02-B601-FF4B-FD6CFE74FE19

treatment provided by

Plazi

scientific name

Linum pringlei S.Watson (1888: 269)
status

 

Linum pringlei S.Watson (1888: 269) View in CoL . ( Fig. 9b View FIGURE 9 ).

Type:— MEXICO. Chihuahua: shaded slopes, Sierra Madre, Pringle 1200 (holotype US!, isotypes GH!, MSC, NY!) .

Cathartolinum pringlei Small (1907c: 74) View in CoL .

Description:— Herbs, perennial, 23–68 cm in height, glabrous, root thin; stems erect, branched from near the base, rigid ascending branches, extended, glabrous. Leaves, basal entire, opposite; distal discretely dentate, alternate; lanceolate or oblanceolate, 8.0.0–19 × 0.7–3.5 mm, sessile, apex acute or rounded, 2-nerved, membranous, glabrous, stipular glands absent. Inflorescence a cymose panicle, pedicels 3.0–14.0 mm long; bracts 1.7–3.4 mm long, margin sparsely dentate, apex acute, stipular glands absent; sepals persistent, ovate to lanceolate, 3.0–4.5 × 0.8–2.1 mm, margin entire or sparsely dentate above the mid portion to glandular-dentate, apex acute to acuminate, 1-nerved, glabrous, stipular glands absent; petals white to pinkish, oblanceolate, 5.0 – 8.0 mm long, glabrous; stamens 2.0–3.0 mm long; anthers 0.6–0.8 mm long, light yellow; staminodia present; styles free, 1.1–2.0 mm long; stigmata capitate, white. Fruit ovoidpyriform, yellow with purple hues in the upper part, 2.3–2.7 × 2.3–2.8 mm, glabrous, pericarp thin, apex acuminate, dehiscent into 10 segments, false septa partially developed, septa ciliated along the margins; seeds narrow to widely ovate, reddish-brown, 1.5–1.8 × 0.8–1.1 mm.

Distribution: —Endemic to Mexico, in Aguascalientes, Chihuahua, Coahuila, Durango, and Jalisco ( Fig. 5c View FIGURE 5 ).

Habitat and ecology: —Oyamel fir forest, cypress-juniper forest, oak forests, oak-pine forests, thornless or small-leaved sub-thornless shrubland, palm-tree forests, pine forests. Elevation 1900–2900 m. Cambisol, Kastanozem, Phaeozem, Lithosol, Luvisol, Regosol, Rendzina, Vertisol, and Xerosol soil types.

Phenology: —Flowering in March–September; fruiting in June–October.

Note: —It is easily distinguished from other Mexican flax species by the white to pinkish color of the corolla; however, it is often confused with L. neomexicanum based on vegetative traits. The ovoid-pyriform fruits of L. pringlei are another character that can be used to identify the species.

Conservation status: — Linum pringlei registers an EOO of 229,843.785 km 2, and an AOO of 120 km 2. In addition, the species is known from> 10 localities therefore it is considered as LC. However, the species, besides being endemic, presents a not continuous distribution that affects the estimation of EOO. Furthermore, template forests of the high regions of Mexico as the north-western portion—the area of distribution of the species—are disappearing due to the development of agriculture and livestock ( Gutiérrez-Garcia & Ricker 2019, CONABIO 2021), so L. pringlei could be threatened in the short term.

Specimens examined: — MEXICO. Aguascalientes: San José de Gracia , 10 km al NW de la Congoja, 2630 m, 22°12’39.2”N, 102°38’5.9”W, 16 October 2013, Murillo-Pérez 525 ( INEGI!) GoogleMaps ; San José de Gracia , 12 km al SW de la Congoja, 2700 m, 16 October 1973, Rzedowski & McVaugh 778 ( MEXU!) . Chihuahua: Ocampo, Parque Nacional, Cascada de Basaseachi , 2100 m, 28°11’00”N, 108°12’30”W, 3 October 1986, R Spellenberg et al. 8674 ( CIIDIR!) GoogleMaps . Coahuila: Saltillo, Ladera caliza 3 km al S de El Frayle, 1953 m, 25°00’47.6”N, 101°20’6.8”W, 1 October 2016, M.A. Ayala-Ramos et al. 60 ( MEXU!) GoogleMaps . Durango: Cuencamé, Cuencamé de Ceniceros , 12 October 1973, J. Marroquín 2648 ( ANSM!) ; Durango, Predio Las Bayas , 2710 m, 8 August 1990, A. García & M. González 569 (CHAPA!, CIIDIR!) ; Durango, Parque El Tecuán, 4 September 1984, F. Casillas et al. 38 ( CIIDIR!) ; Durango, Parque El Tecuán, 30 August 1984, F. Casillas et al. 40 (CHAPA!, IBUG!) ; Durango, Predio Las Bayas , 2700 m, 23°25’00”N, 104°51’00”W, 8 August 1990, A. García & M. González 605 ( CIIDIR!) GoogleMaps ; Durango, Parque El Tecuán, 30 August 1984, F. Casillas et al. 40 ( CIIDIR!) ; Durango, Parque El Tecuán, 4 September 1984, F. Casillas et al. 39 ( CIIDIR!) ; Durango, Parque El Tecuán, 4 September 1984, F. Casillas et al. 46 ( CIIDIR!) ; El Mezquital, 19 km de Los Charcos , 2400 m, 4 October 1983, S. González & M. González 2560 (ANSM!, CHAP!, CHAPA!, CIIDIR!, IBUG!, MEXU!) ; El Mezquital, 22 km al NE de Los Charcos , 2750 m, 1 November 1982, S. González & J. Rzedowski 2345 (CHAPA!, CIIDIR!) ; El Mezquital, Rancho de La Mesa , 28 September 1985, I. Solís 391 (CIIDIR!, IEB!, MEXU!) ; Otaez, Entre Llano Blanco y San José de la Escalera, 5 October 1990, A. Benítez 2654 (CHAP!, CIIDIR!, MEXU!) ; Puente El Cajón San Antonio a 10 km de Altares, 1510 m, 2 October 1990, O. Bravo B. 1711 (CHAP!, CIIDIR!) ; Súchil, Trampa Las Iglesias a 2 km de Alemán, 19 September 1986, F. Acevedo 245 (ANSM!, CHAP!, CIIDIR!) ; Súchil, Potrero Tinajíta, ejido San Juan de Michis , 23 September 1985, J. Alvarado 60 (ANSM!, CHAPA!, CIIDIR!, IBUG!, IEB!) ; Súchil , 4 km al SW de Piedra Herrada, 2400 m, 11 September 1981, S. González 1948 (ANSM!, CHAPA!, CIIDIR!, ENCB!, IEB!, XAL!) ; Súchil, Arroyo El Ranchero , 2400 m, 23°22’03”N, 104°18’03”W, 12 August 1990, S. González & M. González 4751 (CIIDIR!, IBUG!) GoogleMaps ; Súchil, Reserva de la Biosfera de La Michilia , 23°23’99”N, 104°14’99”W, 1 October 1983, G. Flores 13519 ( CIIDIR!) ; Súchil, Arroyo Las Iglesias , 12 September 1986, F. Acevedo 234 ( CIIDIR!) ; Súchil , Mesa EL Burro, 2700 m, 23°23’99”N, 104°17’99”W, 18 September 1985, S. González 3235 (CHAP!, CHAPA!; CIIDIR!, UAMIZ!) ; Súchil, Arroyo Los Indios , 19 September 1985, J. Alvarado 36 ( CIIDIR!) ; Tepehuanes , 50 km de Tepehuanes, 2570 m, 12 September 1989, O. Bravo B. 316 (CHAP!, CIIDIR!) ; Tepehuanes , 5 km de la Mesa Alta, 2450 m, 6 September 1989, O. Bravo B. 244 (CHAP!, CIIDIR!) ; 4 km al NW of Los Angeles along road between Mazatlan and Durango, 2500 m, 28 October 1973, D.E. Breedlove 35739 ( MEXU!) . Jalisco: Tequila, Cima del Cerro ( Volcán ) de Tequila, 2850 m, 8 October 1988, M. Cházaro B. et al. 5723 (IBUG!, IEB!) ; Mezquitic, 5 km al NE de El Mortero por el camino a Monte Escobedo , 2300 m, 22°22’00”N, 103°37’00”W, 22 September 2001, P. Carrillo-Reyes & E.M. Guevara 2677 ( IBUG!) GoogleMaps .

INEGI

Instituto Nacional de Estadística Geografia e Informática

MEXU

Universidad Nacional Autónoma de México

CIIDIR

Instituto Politécnico Nacional

ANSM

Universidad Autónoma Agraria Antonio Narro

IBUG

Universidad de Guadalajara

IEB

Instituto de Ecología, A.C.

XAL

Instituto de Ecología, A.C.

UAMIZ

Universidad Autónoma Metropolitana, Iztapalapa

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Malpighiales

Family

Linaceae

Genus

Linum

Loc

Linum pringlei S.Watson (1888: 269)

González-Velasco, Juan, Burgos-Hernández, Mireya, Galván-Escobedo, Iris G. & Castillo-Campos, Gonzalo 2022
2022
Loc

Cathartolinum pringlei

Small, J. K. 1907: )
1907
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