Vauquelinia californica subsp. pauciflora

(Standley) W. J. Hess & Henrickson

Sida 12: 135. 1987.

Basionym: Vauquelinia pauciflora Standley Proc. Biol. Soc. Wash. 31: 132. 1918
Treatment appears in FNA Volume 9. Treatment on page 431. Mentioned on page 430.

Young stems loosely tomentulose, tardily glabrescent. Leaves: petiole (1.5–) 4–16 (–22) mm; blade green or yellow-green, lanceolate or oblong-lanceolate to elliptic or oblongelliptic, sometimes oblong-ovate, (2.2–) 3–7.5 (–9) × (0.6–) 0.8–1.4 (–2) cm, surfaces glabrate or puberulent along midveins. Corymbs 1.5–5 × 1.7–7 cm, puberulent to glabrate. Flowers: hypanthium 1.5–2.5 × 2.5–3.3 mm, exterior puberulent, interior glabrate; sepals 1.1–2.2 × 1.4–2 mm, abaxially puberulent to glabrate; petals 3.4–5.4 × 2.4–3.4 mm; filaments (2.5–) 3–6 mm. Capsules (4.5–) 5–6 × 3.5–4 (–4.5) mm. Seeds 3.8–5 × 1.1–1.4 mm.


Phenology: Flowering spring.
Habitat: Limestone substrates in arid chaparral-desert scrub
Elevation: 1400–2300 m

Distribution

V9 726-distribution-map.jpg

Ariz., N.Mex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango)

Discussion

Subspecies pauciflora is known from Cochise County, Arizona, and Hidalgo County, New Mexico. These plants have relatively small (to 5.5 mm) and thickened leaves with short petioles (to 7 mm), and small inflorescences.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
mucronate;acute +
William J. Hess +
(Standley) W. J. Hess & Henrickson +
gray +  and dark gray +
compound +  and simple +
opposite +  and alternate +
obliquely cuneate +  and rounded +
Vauquelinia pauciflora +
7.5 cm75 mm <br />0.075 m <br /> (9 cm90 mm <br />0.09 m <br />) +
13 cm130 mm <br />0.13 m <br /> (18.5 cm185 mm <br />0.185 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
yellow-green +  and green +
3 cm30 mm <br />0.03 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
oblong-ovate +, oblong-lanceolate +  and elliptic or oblongelliptic +
3 cm30 mm <br />0.03 m <br /> (13 cm130 mm <br />0.13 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 m <br /> (?) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
free +  and connate +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
8 cm80 mm <br />0.08 m <br /> (13 cm130 mm <br />0.13 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
puberulent +  and glabrate +
1.7 cm17 mm <br />0.017 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Ariz. +, N.Mex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +  and Mexico (Durango) +
not +  and aggregated +
1400–2300 m +
glabrate +  and puberulent +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
not +  and aggregated +
Limestone substrates in arid chaparral-desert scrub +
glabrescent +
crinkled +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
1.5mm;2.5mm +
tomentose +  and sparsely tomentulose or glabrate +
hemispheric +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
2.5mm;3.3mm +
axillary +  and terminal +
crassinucellate +
persistent +
pinnate +, entire +  and serrate +
crenulate +  and serrulate +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
3.4mm;5.4mm +
oblong-ovate +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Flowering spring. +
adnate +, free +, connate +  and distinct +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.11 cm1.1 mm <br />0.0011 m <br /> (?) +  and 0.14 cm1.4 mm <br />0.0014 m <br /> (?) +
persistent +
free +  and distinct +
abaxially puberulent +  and glabrate +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
tomentulose +  and villous-canescent +
Illustrated +
free +  and distinct +
branched +  and simple +
glabrescent;tomentulose +
1 +  and 10 +
subulate;narrowly deltate +
persistent +
distinct +
basal +, lateral +, subterminal +  and terminal +
elongate +
puberulent +  and glabrate +
Vauquelinia californica subsp. pauciflora +
Vauquelinia californica +
subspecies +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
10 (?) +  and 35 (?) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
inconspicuous +
tree +  and shrub +
rounded +  and ovoid +