Crataegus reverchonii var. palmeri

(Sargent) J. B. Phipps

Novon 16: 386. 2006.

Endemic
Basionym: Crataegus palmeri Sargent Trees & Shrubs 1: 57, plate 29. 1903
Synonyms: C. canbyi Sargent
Treatment appears in FNA Volume 9. Treatment on page 538. Mentioned on page 518, 537.

Shrubs, 80 dm. Short-shoot leaf-blades 4–6 cm, usually drying dark. Inflorescences usually glabrous. Flowers 10–12 mm diam.; styles (2 or) 3.


Phenology: Flowering Apr; fruiting Sep–Oct.
Habitat: Brush
Elevation: 10–200 m

Distribution

V9 904-distribution-map.jpg

Ark., Del., Kans., Mo., Tenn.

Discussion

Variety palmeri ranges from the Ozark region to Delaware. Crataegus pennypackeri Sargent from Delaware, sometimes treated as distinct, is perhaps no more than a form of C. canbyi.

Selected References

None.

Lower Taxa

None.
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
red +, rose +  and cream +
James B. Phipps +
(Sargent) J. B. Phipps +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
cuneate +
Crataegus palmeri +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
green +  and paler green +
glossy +  and bright +
less orbiculate +  and broadly elliptic more or less orbiculate +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
glandular-punctate +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ark. +, Del. +, Kans. +, Mo. +  and Tenn. +
not +  and aggregated +
10–200 m +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 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 +
Brush +
pilose +  and glabrous +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
glabrous +  and short-stipitate-glandular +
subentire +
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 +
glabrescent +  and villous +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Apr +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
red +  and orange-red +
10 cm100 mm <br />0.1 m <br /> (?) +
suborbicular +
not arillate +
persistent +
free +  and distinct +
reflexed +  and patent +
triangular +
4 cm40 mm <br />0.04 m <br /> (?) +
1-50-flowered +  and few-leaved +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrescent +  and hairy +
C. canbyi +
Crataegus reverchonii var. palmeri +
Crataegus reverchonii +
variety +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
straight +
reflexed +  and recurved +
medium +  and stout +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
less erect +  and oblique +
1 +  and several +
determinate +
6 +  and 5 +