Prunus minutiflora

Engelmann ex A. Gray

Boston J. Nat. Hist. 6: 185. 1850.

Common names: Texas almond
Endemic
Treatment appears in FNA Volume 9. Treatment on page 370. Mentioned on page 356, 359.

Shrubs, suckering, much branched, 10–20 dm, weakly thorny. Twigs with axillary end buds, canescent. Leaves deciduous; petiole 1–2 (–6) mm, glabrous, eglandular; blade elliptic or obovate, 0.5–1.6 (–3.5) × 0.3–0.8 (–2.1) cm, base cuneate, margins usually entire, sometimes irregularly serrulate (sometimes dentate on long-shoots), teeth sharp to blunt, eglandular, some callus-tipped, apex usually obtuse to rounded, sometimes apiculate, surfaces glabrous. Inflorescences solitary flowers. Pedicels 0–2 mm, puberulent. Flowers unisexual, plants dioecious, blooming at leaf emergence; hypanthium campanulate, 2–3 mm, glabrous externally; sepals spreading, triangular, 0.7–1.5 mm, margins entire, surfaces glabrous; petals white, obovate, 2–3.5 mm; ovaries hairy. Drupes reddish-brown, globose to ovoid, 9–12 mm, puberulent; hypanthium tardily deciduous; mesocarps leathery to dry (slightly splitting); stones ovoid to subglobose, not flattened.


Phenology: Flowering Feb–Mar; fruiting May–Jun.
Habitat: Dry rocky streambeds and uplands, limestone hills, ledges
Elevation: 100–700 m

Discussion

Prunus minutiflora is a rare species limited to central Texas around the Edwards Plateau.

Selected References

None.

Lower Taxa

None.
... more about "Prunus minutiflora"
Joseph R. Rohrer +
Engelmann ex A. Gray +
dark gray +, gray-brown +, reddish-brown +  and reddish +
compound +  and simple +
opposite +  and alternate +
cuneate +
1.6 cm16 mm <br />0.016 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
obovate +  and elliptic +
0.5 cm5 mm <br />0.005 m <br /> (18 cm180 mm <br />0.18 m <br />) +
? (?) +  and ? (?) +
0.3cm +  and 0.8cm +
free +  and distinct +
Texas almond +
solitary +, fascicles +, 2-flowered +  and umbellate +
not +  and aggregated +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
reddish-brown +
globose +  and ovoid +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
100–700 m +
flattened +
hairy +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (4 cm40 mm <br />0.04 m <br />) +
at leaf emergence +  and blooming +
not +  and aggregated +
not +  and aggregated +
not +  and aggregated +
Dry rocky streambeds and uplands, limestone hills, ledges +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1-64(-90)[-100]-flowered +
crassinucellate +
deciduous +
entire +  and serrulate +
undulate +, toothed +, entire +, flat +  and lobed +
leathery +  and dry +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and apical +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering Feb–Mar +  and fruiting May–Jun. +
adnate +, free +, connate +  and distinct +
Boston J. Nat. Hist. +
not arillate +
free +  and distinct +
triangular +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
free +  and distinct +
branched +  and simple +
1 +  and 20 +
not flattened +, ovoid +  and subglobose +
deciduous +
distinct +
basal +, lateral +, subterminal +  and terminal +
not elongate +
Amygdalus +, Armeniaca +, Cerasus +, Lauro-cerasus +, Padus +  and Persica +
Prunus minutiflora +
species +
callus-tipped +  and eglandular +
sharp +  and blunt +
inconspicuous +
thorny +  and branched +
plant +, shrub +  and suckering +
hairy +  and glabrous +