Taxon Details: Comarostaphylis discolor subsp. macvaughii Diggs
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Narratives:
Family:
Ericaceae (Magnoliophyta)
Ericaceae (Magnoliophyta)
Scientific Name:
Comarostaphylis discolor subsp. macvaughii Diggs
Comarostaphylis discolor subsp. macvaughii Diggs
Primary Citation:
Bull. Torrey Bot. Club 115: 204. 1988
Bull. Torrey Bot. Club 115: 204. 1988
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Description: Erect to trailing or upright shrubs to 1 m tall, some individuals flowering when only aprox. 10 cm tall; bark gray to brownish-red, peeling and flaking in small pieces; young twigs glabrous. Leaves coriaceous, linear to narrowly elliptic to ovate-elliptic, plane to very slightly revolute, 1.4-7(-9.8) x 0.2-2(-2.7) cm, usually at the smaller end of the range of leaf sizer variation, apically acute to acuminate, mucronate, basally cuneate to tapering, margins entire, with a few scattered teeth or marginal callose thickenings or distinctly serrulate, abaxially and adaxially glabrous; petioles to 3(-5) mm long, glabrous. Inflorescences racermose or paniculate, to 3.3 cm long, glabrous; floral bracts, bracteoles, and calyces glabrous, marginally ciliate by eglandular trichomes; floral bracts carinate to navicular, acute, 1.3-2.5 mm long; pedicels 4.1-6.6 mm long, glabrous; bracteoles basal to medial, lanceolate, 1.1-1.7 mm long. Flowers: calyx lobes triangular or ovate-triangular, 1-1.7 x 1.1-1.4 mm, acute; corollas urceolate, 4.5-5 x 3.7-4.5 mm, pink with white lobes; outer surface glabrous; lobes 1-1.1 x 1.4-1.8 mm, inner surface with slight pubescence of hyaline hairs; stamens 2.6-2.8 mm long; filaments 2.4-2.7 mm long, dilated at base, villous; anthers ovoid, 1.1-1.3 x 0.7-0.8 mm, the spurs 0.6-0.8 mm long; style 2.8-3.3 mm long; ovary glabrous. Fruit 5-8 mm in diam., black at maturity; seeds to 2.3 x 1.4 mm.
Distribution: Endemic to Mexico, in the mountains near Tapalpa, Jalisco, in pine forest. Flowering and fruiting in late Jan.
Illustration: Diggs (1965), fig. 7.
Type: Mexico. Jalisco: Mountains 10-11 km N of Tapalca, road to Chiquilistlán, 2300-2350 m, 30-31 Jan 1975 (fl, fr), McVaugh 25967 (holotype, MICH, photo, Diggs neg. 33).
Description: Erect to trailing or upright shrubs to 1 m tall, some individuals flowering when only aprox. 10 cm tall; bark gray to brownish-red, peeling and flaking in small pieces; young twigs glabrous. Leaves coriaceous, linear to narrowly elliptic to ovate-elliptic, plane to very slightly revolute, 1.4-7(-9.8) x 0.2-2(-2.7) cm, usually at the smaller end of the range of leaf sizer variation, apically acute to acuminate, mucronate, basally cuneate to tapering, margins entire, with a few scattered teeth or marginal callose thickenings or distinctly serrulate, abaxially and adaxially glabrous; petioles to 3(-5) mm long, glabrous. Inflorescences racermose or paniculate, to 3.3 cm long, glabrous; floral bracts, bracteoles, and calyces glabrous, marginally ciliate by eglandular trichomes; floral bracts carinate to navicular, acute, 1.3-2.5 mm long; pedicels 4.1-6.6 mm long, glabrous; bracteoles basal to medial, lanceolate, 1.1-1.7 mm long. Flowers: calyx lobes triangular or ovate-triangular, 1-1.7 x 1.1-1.4 mm, acute; corollas urceolate, 4.5-5 x 3.7-4.5 mm, pink with white lobes; outer surface glabrous; lobes 1-1.1 x 1.4-1.8 mm, inner surface with slight pubescence of hyaline hairs; stamens 2.6-2.8 mm long; filaments 2.4-2.7 mm long, dilated at base, villous; anthers ovoid, 1.1-1.3 x 0.7-0.8 mm, the spurs 0.6-0.8 mm long; style 2.8-3.3 mm long; ovary glabrous. Fruit 5-8 mm in diam., black at maturity; seeds to 2.3 x 1.4 mm.
Distribution: Endemic to Mexico, in the mountains near Tapalpa, Jalisco, in pine forest. Flowering and fruiting in late Jan.
Illustration: Diggs (1965), fig. 7.
Type: Mexico. Jalisco: Mountains 10-11 km N of Tapalca, road to Chiquilistlán, 2300-2350 m, 30-31 Jan 1975 (fl, fr), McVaugh 25967 (holotype, MICH, photo, Diggs neg. 33).
Flora and Monograph Treatment(s):
Comarostaphylis discolor subsp. macvaughii Diggs: [Article] Luteyn, James L., et al. 1995. Ericaceae, Part II. The Superior-Ovaried Genera (Monotropoideae, Pyroloideae, Rhododendroideae, and Vaccinioideae P.P.). Fl. Neotrop. Monogr. 66: 560.
Comarostaphylis discolor subsp. macvaughii Diggs: [Article] Luteyn, James L., et al. 1995. Ericaceae, Part II. The Superior-Ovaried Genera (Monotropoideae, Pyroloideae, Rhododendroideae, and Vaccinioideae P.P.). Fl. Neotrop. Monogr. 66: 560.