Crataegus austromontana

Beadle

Bot. Gaz. 28: 412. 1899.

Common names: Valley Head hawthorn
Conservation concernEndemic
Treatment appears in FNA Volume 9. Treatment on page 610. Mentioned on page 609.

Shrubs, 40–50 dm. Stems: twigs: new growth densely pubescent, 1–2-years old brown; thorns on twigs not recorded. Leaves: blade broadly ovate to suborbiculate, 4–7 cm, base cuneate, lobes 3 (or 4) per side, sinuses shallow, lobe apex subacute, margins sharply glandular-serrate throughout, veins 5 per side, apex subacute, abaxial surface sparsely pubescent except on veins, adaxial appressed-hairy young, especially on veins, surfaces usually glabrescent. Inflorescences 3-flowered, on lateral leafy short-shoots of season; bracteoles caducous, membranous. Flowers 25 mm diam.; sepals narrowly triangular, 7 mm; petals broadly elliptic; stamens 10; styles 3–5. Pomes red, suborbicular.


Phenology: Flowering early May; fruiting Sep–Nov.
Habitat: Wooded hills, brush
Elevation: 70–200 m

Discussion

Of conservation concern.

Crataegus austromontana is a possibly extinct species; it was last collected in 1916. Beadle reported that it occurred throughout the Sand Mountain region of Alabama and had also been collected in the Cumberland Mountains and hill country of eastern and middle Tennessee. The species is similar to C. triflora but has wider, usually larger and more deeply incised leaves, and only ten stamens.

Selected References

None.

Lower Taxa

None.

"wide" is not a number.

... more about "Crataegus austromontana"
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
James B. Phipps +
Beadle +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +
Triflorae +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
broadly ovate +  and suborbiculate +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Valley Head hawthorn +
Ala. +  and Tenn. +
not +  and aggregated +
70–200 m +
mealy +  and more or less hard +
25 cm250 mm <br />0.25 m <br /> (?) +
unisexual +  and bisexual +
not +  and aggregated +
not +  and aggregated +
yellow +  and red or purplish +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
old +  and new +
Wooded hills, brush +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
pubescent +  and stipitate-glandular +
glandular-pectinate +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
post-mature +
stipitate-glandular +  and pubescent +
Flowering early May +  and fruiting Sep–Nov. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
suborbicular +
not arillate +
persistent +
free +  and distinct +
patent-reflexed +
triangular +
nonaccrescent +
7 cm70 mm <br />0.07 m <br /> (?) +
Conservation concern +  and Endemic +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
Crataegus sect. Triflorae +
Crataegus austromontana +
Crataegus (sect. Coccineae) ser. Triflorae +
species +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
blackish +, dark gray +  and old +
straight +
slender +  and stout +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
mature +  and younger +
exfoliating +
less erect +  and oblique +
1 +  and several +
straight +
determinate +