Passiflora mexicana

Jussieu

Ann. Mus. Natl. Hist. Nat. 6: 108, plate 38, fig. 2. 1805.

Treatment appears in FNA Volume 6. Treatment on page 175. Mentioned on page 172, 173, 174.

Stems subangular, glabrous. Leaves not pungent, glabrous; stipules linear-subulate, 1.5–2.5 × 0.5 mm, eglandular; petiole eglandular; blade roughly symmetric, 1.5–7 (–15) × 2.5–8 (–14) cm, moderately to deeply 2-lobed, margins entire; abaxial fine veins weakly to moderately raised, abaxial nectaries not along leaf margins, usually in 2 lines and rarely extending into leaf lobes at least on flowering-stems. Floral bracts linear-subulate, 1–4 × 0.5 mm, margins entire, eglandular. Flowers: floral-tube absent; sepals green, 13–17 × 4–6 mm; petals green, 3–4 × 1 mm; corona filament whorls 2, outer filaments red, becoming purple, linear, terete, 5–12 mm. Berries purple-black, globose to subellipsoid, 8–16 × 7–14 mm.


Phenology: Flowering Jul–Sep.
Habitat: Riparian woodlands, semiarid shrublands
Elevation: 600–1400 m

Discussion

The leaf shape of Passiflora mexicana is varies greatly within individual plants. Lateral leaf lobes are much shorter and apically rounded on slower-growing or flowering branches, but are relatively long and truncate on vigorously-growing, nonflowering branches, suckers, and young plants. A striking feature of this species is that as the flowers become less receptive to pollination the coronal filaments and limen (disc at base of the androgynophore) dramatically change color; the corona from red to purple, the limen from orange to yellow or white. The typically fetid flowers of this species may be wasp-pollinated (J. M. MacDougal and R. McVaugh 2001).

Passiflora mexicana may consist of a small complex of species.

Selected References

None.

Lower Taxa

None.
... more about "Passiflora mexicana"
short-to-elongate +
versatile +  and dorsifixed +
Douglas H. Goldman +  and John M. MacDougal +
Jussieu +
smooth;rough or corky +
cuneate;cordate +
purple-black +
0.8 cm8 mm <br />0.008 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
8 cm80 mm <br />0.08 m <br /> (14 cm140 mm <br />0.14 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (7 cm70 mm <br />0.07 m <br />) +
2-lobed +
2.5cm;8cm +
scattered;whorled +
Ariz. +  and Mexico +
600–1400 m +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
unisexual +  and bisexual +
Riparian woodlands, semiarid shrublands +
many-branched +  and simple +
paired +  and solitary +
membranous +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
3[-5]-carpellate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +
Flowering Jul–Sep. +
Ann. Mus. Natl. Hist. Nat. +
compressed +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
subangular +
2-lobed;clavate;reniform +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (?) +
distinct +
grooved +  and reticulate +
Passiflora mexicana +
Passiflora +
species +
hairy +  and glabrous +
herbaceous +  and woody +