Crataegus (sect. Brevispinae) ser. Brevispinae

Man. Cult. Trees ed. 2, 366. 1940.

Endemic
Basionym: Brevispinae Beadle in J. K. Small, Fl. S.E. U.S., 532, 534. 1903
Treatment appears in FNA Volume 9. Treatment on page 500.

Shrubs or trees, 60–100 (–150) dm. Stems: trunks 1–few, erect, bark plated; compound thorns on trunks present when older; thorns on twigs absent or determinate, recurved, short, 1–1.5 cm. Leaves: blade elliptic, 2–3 cm, coriaceous, lobes 0, veins 5 or 6 (–8) per side, absent to sinuses, glossy; blades on extension shoots often much larger (more than 6 cm) and variously lobed, to deeper sinuses. Inflorescences: branches glabrous; symmetric bracteoles present, basal stipuliform, falcate bracteoles absent. Flowers: post-mature petals ± orange; stamens 20, anthers cream to orange. Pomes black to bluish black, heavily pruinose mature; pyrene sides plane.

Distribution

sc, se United States

Discussion

Species 1.

Series Brevispinae is centered in Louisiana and occurs in neighboring states, a distribution unique among hawthorns; the series is disjunct in Georgia. Formerly, Crataegus saligna (ser. Cerrones) was placed in ser. Brevispinae due to similarities of fruit, flower, and foliage. Section Brevispinae is distinct because of its short, recurved thorns, relatively large plant size (in some specimens), narrow, glossy leaves with lobes absent, more or less orange post-mature petals, and black fruit with plane-sided pyrenes. The names Brachyacanthae Sargent and sect. Brachyacanthae E. J. Palmer were not validly published.

Selected References

None.

0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
cream +  and orange +
James B. Phipps +
(Beadle) C. K. Schneider +
compound +  and simple +
opposite +  and alternate +
Brevispinae +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
adnate +  and distinct +
crowded +, scattered +  and alternate +
sc +  and se United States +
not +  and aggregated +
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 />) +
tomentose +  and glabrous +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
entire +  and serrate +
serrate +  and crenate +
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 />) +
elliptic +  and circular +
0 (?) +  and 4 (?) +
free +  and distinct +
post-mature +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
black +  and bluish black +
Man. Cult. Trees ed. +
not arillate +
persistent +
free +  and distinct +
appressed +  and erect +
triangular +
1-50-flowered +  and few-leaved +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus (sect. Brevispinae) ser. Brevispinae +
Crataegus sect. Brevispinae +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
determinate +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
1 +  and few +
6 +  and 5 +
tree +  and shrub +