Lamourouxia pringlei Robinson & Greenman. Gard. & Forest

Francisco-Gutiérrez, Antonio, Ruiz-Sanchez, Eduardo, González, Dolores & Lira-Noriega, Andrés, 2023, Lamourouxia (Orobanchaceae) of Mexico, Phytotaxa 582 (1), pp. 1921-1935 : 1921-1935

19. Lamourouxia pringlei Robinson & Greenman. Gard. & Forest 8(385): 273, 275. 1895.

Lectotype designated here:— MEXICO. Oaxaca: San Felipe, found growing on the rocky and wooded summit ridges of San Felipe, 1894, C.G. Pringle 4927 (Lectotype: MO-155211 !; isolectotypes:AC00320443!, BKL00004274!, BR0000008428080!, CM2010, E00394558!, ENCB0003598!, F0072506F!, G00356751!, G00356752!, GH00078583!, GOET011028! HBG511949!, JE00019793!, K000533731!, MEXU00031624!, MEXU00031626!, MSC, NDG50289!, NY00090608!, P02995395!, P02995396!, PH00016833!, RSA 0006028!, S-G-3537!, US00125707!, US 00125708!, VT UVMVT026730!, WIS v0256296WIS!). Not Lamourouxia pringlei Gandoyer. Bull. Soc. Bot. France 66(5–6): 217. 1919.

Figure 13 A–C .

Shrubs or sub-shrubs 40–200 cm tall, stems branched along the plant, erect, woody, glandular-puberulous. Leaves sessile, lanceolate to elliptic, rarely narrowly spatulate, 5–19 × 2–5 mm, margin entire, apex acute or obtuse, base cuneate to rounded; membranous, glandular-pubescent. Inflorescence a raceme, erect, pedicels thin, 2–5 mm long. Bracts equal along inflorescence, sessile, lanceolate to elliptic, 4–9 × 3–4 mm, margin entire, apex obtuse, base cuneate. Calyx campanulate without dots on the surface, 7–11 × 5–7 mm, lobes lanceolate to triangular, 1.8–6.5 × 2–4 mm, margin entire, apex acute to obtuse, rarely acuminate, glandular-pubescent. Corolla funnelform, 29–37 × 6–10 mm, upper lip 7–10 × 5–6 mm, lower lip 4–8 × 3–5 mm, lobes 2.2–3 mm × 1.4–2.2 mm; red, glandular-pubescent. Stamens exserted 4, 14–25 mm long, anthers 2.4–3.9 mm. Style 23–34 × 0.4–0.8 mm, stigma bilobed, 0.7 × 1 mm. Capsule ovoid, 11–14 × 6–8 mm, glabrous. Seeds not seen.

Etymology: —The name of this species honors C.G. Pringle, collector of the type specimen.

Distribution and Ecology: —This species is endemic from the states of Oaxaca, Puebla, and Veracruz ( Fig. 13C ). Collections are from xerophytic scrubs ( Acacia , Brahea dulcis (Kunth in Humboldt, Bonpland, and Kunth 1815 [1816]: 300) Martius (1838: 244), oak forests ( Quercus acutifolia Née (1801: 267) , Q. rugosa with Arbutus , Juniperus flaccida , and Rhus ), pine forests, Pseudotsuga menziesii forests, and pine-oak forests, at elevations of 2000–3048 m.

Phenology: —Flowering and fruiting occur from August to March.

Discussion: —Please see L. paneroi to know more about the similarity with L. pringlei .

Nomenclatural notes: —The type collection of Lamourouxia pringlei has numerous duplicates in several herbariums widely distributed. It was selected as lectotype the specimen MO-155211! because it exhibits the branching pattern with open inflorescences and mature flowers. Other specimens consist mostly of two stems not branched.

Examined specimens: — MEXICO. Oaxaca: Chilapa de Díaz, 1 km de San Marcos Monte de León, a 4 km de Chilapa de Díaz sobre la carretera de terracería a Chilapa de Díaz , 2150 m, 24 December 2002, Calzada 23686 ( MEXU!). Cristóbal Suchixtlahuaca , 7 km al SO-S de Suchixtlahuaca, por la terracería rumbo a Santiago Tenejupan, 2250 m, 20 November 1985, Salinas & Dorado F-3036 ( MEXU!). Nochixtlán, Mixteca Alta, 600 m antes de la desviación a Jaltepec , antes de Nochixtlán, 2330 m, 06 February 1993, Cházaro et al. 7064 ( MEXU!, XAL!); Cerros de Nochixtlán , 2250 m, 17 October 1921, Conzatti 4298 ( MEXU); 12 km al NE de Nochixtlán camino a Huautla y 2 km al S de Fortín Alto , 2310 m, 23 January 1986, García-Mendoza et al. 2079 ( XAL!). Rojas de Cuauhtémoc , a unos 20 km al NNE de Tlacolula, km 575 de la carr. Mex-Oax., 3000 m, 30 January 1966, Delgadillo 186 ( MEXU!, US!). San Bartolomé Quialana, Alrededores del mirador en la parte más alta del cerro Yuubldan a 4 km de la población, 2850 m, 23 November 2013, Aragón-Parada 938, 939 ( MEXU!). San Juan Mixtepec , near town, 2100 m, 19 December 1996, Hunn OAX-641 ( MEXU!, MO). San Juan Teposcolula, Cerro Yucudaá , torre de microondas, 2700 m, 19 October 1990, A. García-Mendoza & Reyes-Santiago 4963 ( MEXU!); 1 km al N de Teposcolula , 2390 m, 22 February 1982, García-Mendoza 886 ( MEXU!); Yucudá, por las torres de microondas, a 1.5 km al NO de la desviación a Teposcolula , 2700 m, 19 October 1990, Reyes-Santiago & García-Mendoza 2464 ( MEXU!). San Miguel Chicahua , 8.6 km al NO de Amatlán camino a Apoala, 2438 m, 10 November 2001, García-Mendoza & Solano 7331 ( MEXU!). San Pedro y San Pablo Teposcolula , Ladera N del cerro de Pueblo Viejo, 2350 m, 05 November 2005, García-Mendoza et al. 8168 ( MEXU!). Santa Catarina Ixtepeji, Paraje “Peña Prieta”, 15 km al norte de la Ciudad de Oaxaca y a 3 km al noroeste del poblado “El Estudiante”, 2700 m, 23 August 1997, Acevedo 26 ( MEXU!). Tepelmeme Villa de Morelos, Cañada Otates , brecha a Hijadedoaria, 2092 m, 02 March 2001, Tenorio 19958 ( MEXU!). Villa de Tamazulápam del Progreso , 4.5 km al sureste de Tamazulápan, 22 October 1977, González-Medrano & Hiriart 10611 ( MEXU!); 7 km al SW de Tamazulápan sobre la carretera a Chilapa, 2350 m, 12 December 1981, Rzedowski 37688 ( MEXU!). Villa Díaz Ordaz , a 16 km al NE de Díaz Ordaz , 2780 m, 08 December 1982, Cedillo 1932 ( MEXU!); about 11 miles north of Tlacolula above Valley of Diaz Ordaz , 3000 m, 30 January 1966, Ernst & Delgadillo 2384 ( MEXU!, P!, US!). Cerro cercano al entronque de la carretera Yucudaá-Pinotepa , 2270 m, 02 november 1981, García-Mendoza 808 ( MEXU!, MO). Puebla: Ajalpan , 1 km al S de San Luis del Pino, 02 December 1991, Salinas & Martínez 6407 ( MEXU!). Caltepec , al SE, Cerro El Castillo, Tenorio 15379 ( MEXU). Chapulco, 2 km antes de llegar a Nicolás Bravo, carretera Azumbilla-Lagunas de San Bernardino , 2300 m, 28 September 1989, Cházaro et al. 6095 ( XAL!). Coxcatlán, Carretera de Coyomeapan a Zoquitlán , ranchería Pala , 2446 m, 06 February 2015, Salazar et al. 9421 ( MEXU!); 4 km al E de Pala, brecha a Zoquitlán , 2490 m, 28 September 1984, Tenorio et al. 7467 ( MEXU!). Nicolás Bravo, Volcán Otzelotzi , a un lado de las lagunas de San Bernardino, 2750 m, 20 October 1996, Cházaro et al. 7673 ( MEXU!). Palmar de Bravo, Cerro Tepoxtla de San Martín Esperilla , 2700 m, 31 October 1991, Tenorio et al. 17965 ( MEXU!). Tepanco de López, Teontepec , 1 km al W de Nopala, brecha a Atexcal, 2100 m, 27 September 1984, Tenorio et al. 7454 ( MEXU!). Tlacotepec de Benito Juárez, San Marcos Tlacoyalco, Carretera Cuacnopalan-Esperilla , aproximadamente 2 km al N de Esperilla, 2000 m, 07 September 1995, Panero et al. 5801 ( MEXU!). Veracruz: Perote , cerro de Tenextepec, 2500 m, 27 October 1997, Castillo-Campos et al. 16499, 16513 ( XAL!); 19 February 1998, Castillo-Campos et al. 16591 ( XAL!); Hacienda de San Agustín , al SE, 2560 m, 04 November 1998, Castillo-Campos et al. 18725 ( XAL!).

Figures

FIGURE 13. Lamourouxia pringlei (Isolectotype, Pringle 4927). A) Dry inflorescence. B) Dry leaves. C) Distribution map. Lamourouxia rhinanthifolia. D) Inflorescence. E,F) Detail of flowers. G) Leaves. H) Distribution map. Credits in Appendix I.