Magnolia pacifica subsp. pacifica

  • Authority

    Vázquez García, J. Antonio. 1994. Magnolia (Magnoliaceae) in Mexico and Central America: A Synopsis. Brittonia. 46 (1): 1-23.

  • Family

    Magnoliaceae

  • Scientific Name

    Magnolia pacifica subsp. pacifica

  • Description

    Latin Diagnosis - Fructus ellipsoidei; folliculi plerumque glabri; lam- inae ellipticae vel lanceolatae, 2.5-8 cm latae; semina 9-12 mm longa, 7-8 mm lata.

    Species Description - Leaves narrowly oblong or lanceolate to narrowly elliptic, 2.5-8 cm wide; peduncles essentially glabrous; larger polyfollicles ob- longoid, glabrous, 25-35 follicles, these, when mature and open, with locules oval to almost round, not much longer than wide; seeds 9-12 mm long, 7-8 mm wide.

  • Discussion

    TYPE: MEXICO. Jalisco: forested margin of small tributary of arroyo San Lorenzo, 35 km NW of Guadalajara, 8 km NW of Tesist'an, Zapopan, 1450 m, 20º50'N, 103º34'W, 1450 m, 18 Mar 1987, Iltis et al. 29722 (HOLOTYPE: WIS!; ISOTYPES: IBUG!, MEXU!, MICH!, US!).

    Eponymy: Named to honor Professora Luz Maria Villarreal de Puga, of the Instituto de Botanica, Universidad de Guada- lajara, indefatigable and energetic explorer of the Jaliscan flora.

    Local names: "almacasusco" (Rzedowski 9135), "magnolia" and "manolia" (Vaz- quez-G. et al. 5019a-c). Representative specimens examined: MEXICO. Jalisco: Arroyo San Lorenzo, Zapopan, 8 km al NW de Tesistan, 30 Jun 1984 (fl, fr), Sainz-Ch. & Nieves- H. 134 (IBUG, WIS, XAL), 8 km NW of Tesistan, Zapopan, 20?50'N, 103?34'W, 18 Mar 1987 (fl, fr), Iltis et al. 29724 (WIS); 12 Oct 1984 (fl), Sainz-Ch. 205 (IBUG), 8 km NW of Tesistan, 14 Jul 1989 (fl, fr), Vdzquez-G. et al. 5019a-c (WIS), 6 Jan 1974 (fr), Vil- larreal de P. 6126 (IBUG, MICH, MEXU), W of Santa Lucia, 18 Mar 1987 (fr), Chdzaro-B. et al. 4545 (IBUG), 12 km NW of Tesistan, 12 Aug 1985 (fl), Soltero-O. & Contreras 240 (IBUG); Arroyo Agua Caliente, Bafios El Encanto, Arroyo Los Pajaritos, 29 Dec 1974, Villarreal de P. 7102 (IBUG); La Sabana, road to El Taray, N of Tesistan, 28 Jun 1986 (fl), Ramirez-D. R. 332 (IBUG); Reserva Forestal y de la Fauna Bosque La Primavera, 4 Jun 1974 (fl), Becerra 1540 (IBUG); Ar- royo Milpillas, San Cristobal de la Barranca, 13 Jun 1987 (fl), Ornelas-U. & Flores-M. 855 (IBUG); 9 km NE of San Cristobal de la Barranca, Hwy. to Colotlan, 15 Oct 1986, Santana-M. et al. 2561 (IBUG); Hwy. Tesistan-San Cristobal de la Barranca, 12 Jul 1987 (fl), Chazaro-B. et al. 4872 (IBUG); 10 km past of Balneario Los Camachos, 20 Dec 1980, Gutierrez-O. s.n. (IBUG); El Salvial, 3 km W of Hwy. Guadalajara- Ixtlahuacan del Rio, 8 May 1984, Gallegos 1630 (IBUG). Zacatecas: 17 km S of Moyahua, 25 Jun 1957 (fl), Rzedowski 9135 (ENCB, MEXU, MICH).

  • Distribution

    Vicinity of Guadalajara at Zapopan, Jalisco, and northward to Moyahua, Zacatecas, 1300-1600 m (Fig. 1). In deep ravines (barrancas) with forested margins along permanent streams, with Astronium, Equisetum, Ficus, Litsea, Malvaviscus, Nectandra?, Psilotum, Randia, Rhus, and Salix. Flowering from March to early July, with some flowers found throughout the year; fruits usually remaining attached and dehiscing in March or April of the following year; some trees dropping their dehisced fruits by May,

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