Passiflora tenuiloba

Engelmann

Boston J. Nat. Hist. 6: 192. 1850.

Illustrated
Treatment appears in FNA Volume 6. Treatment on page 176. Mentioned on page 172, 173, 174, 175.

Stems terete, sparsely hairy, (bark not corky). Leaves not pungent, glabrous or subglabrous to short-hairy, not soft-hairy; stipules linear-subulate, 2–5 × 0.5–1 mm, eglandular; petiole glandular, glands cuplike; blade roughly symmetric, 2–7 × 2.5–16 cm, as wide as to usually wider than long, 3–9-lobed, primary lobes 3 and often further lobed, lobes acute, middle primary lobe much shorter than to ± as long as lateral 2 primary lobes, margins entire; abaxial fine veins moderately to prominently raised, abaxial nectaries usually absent, sometimes present near leaf margins but not forming lines. Floral bracts obscure, linear-subulate, 1 × 0.2–0.5 mm, margins entire, eglandular. Flowers: floral-tube absent; sepals green, 6–10 × 2–4 mm; petals absent; corona filament whorls 2, outer filaments purple basally, yellow apically, or yellow throughout, linear, terete to slightly transversely compressed, 3–7 mm. Berries dark blue to black, globose to dorsiventrally compressed, 6–12 × 6–12 mm. 2n = 24.


Phenology: Flowering Apr–Aug(–Dec).
Habitat: Open oak-juniper or coastal woodlands and savannas, grasslands and semideserts, primarily over limestone
Elevation: 30–900 m

Distribution

V6 316-distribution-map.jpg

Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (Tamaulipas)

Discussion

E. P. Killip (1938) and W. C. Martin and C. R. Hutchins (1980) incorrectly indicated that Passiflora tenuiloba is native to New Mexico. This is based upon the misinterpretation of confusing labels on old specimens (see D. H. Goldman 2004).

Passiflora tenuiloba has the most variable leaves of any species in the genus. They vary considerably in texture, color, indument, lobe length and number, and petiole-gland size and shape, not only between populations but also within individual plants.

Selected References

None.

Lower Taxa

None.

... more about "Passiflora tenuiloba"
short-to-elongate +
versatile +  and dorsifixed +
Douglas H. Goldman +  and John M. MacDougal +
Engelmann +
smooth;rough or corky +
cuneate;cordate +
dark blue +  and black +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
2.5cm;16cm +
scattered;whorled +
Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
30–900 m +
1 cm10 mm <br />0.01 m <br /> (?) +
0.2mm +  and 0.5mm +
unisexual +  and bisexual +
cuplike +
Open oak-juniper or coastal woodlands and savannas, grasslands and semideserts, primarily over limestone +
many-branched +  and simple +
paired +  and solitary +
not soft-hairy +, subglabrous +  and short-hairy +
membranous +
terete +  and slightly transversely compressed +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3[-5]-carpellate +
Flowering Apr–Aug(–Dec). +
Boston J. Nat. Hist. +
compressed +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Illustrated +
2-lobed;clavate;reniform +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
linear-subulate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
distinct +
grooved +  and reticulate +
Passiflora tenuiloba +
Passiflora +
species +
hairy +  and glabrous +
herbaceous +  and woody +