Crataegus mollis var. dumetosa

(Sargent) Kruschke

Publ. Bot. Milwaukee Public Mus. 3: 188. 1965.

Conservation concernEndemic
Basionym: Crataegus dumetosa Sargent Crataegus Missouri, 109. 1908
Treatment appears in FNA Volume 9. Treatment on page 554. Mentioned on page 553.

Stems: twigs ± straight; thorns on twigs absent or few. Leaf-blades broadly elliptic to suborbiculate, lobes 0 or obscure, sinuses shallow (LII 0–8%). Stamens 20. Pomes red.


Phenology: Flowering Mar–Apr; fruiting Sep–Oct.
Habitat: Wooded sites
Elevation: 150–300 m

Discussion

Of conservation concern.

Variety dumetosa is recorded only from Neck City, Jasper County in Missouri. Crataegus invisa Sargent from Arkansas and Oklahoma, which is intermediate with var. mollis, may have some leaves without lobes but most are usually shallowly incised and larger than in var. dumetosa.

Selected References

None.

Lower Taxa

None.

"pubescent" is not a number.

mature +  and young +
glabrous +  and scabrous-pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
ivory-cream +
James B. Phipps +
(Sargent) Kruschke +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
truncate +  and cuneate +
Crataegus dumetosa +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
less elliptic +  and more or less ovate or suborbiculate +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oblong +  and linear-lanceolate +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Mo. +  and Tex. +
not +  and aggregated +
150–300 m +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 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 />) +
pale gray +  and tan +
older +, old +, young +  and new +
glabrescent +  and tomentose +
Wooded sites +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
multiveined +, sessile-glandular +  and short-stipitate +
persistent +
glandular-serrate +  and glandular-laciniate +
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 (?) +
Pink (?) +  and White (?) +
free +  and distinct +
post-mature +
tomentose +
mature +  and young +
tomentose +  and glabrate +
Flowering Mar–Apr +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
tapered +  and suborbicular +
Publ. Bot. Milwaukee Public Mus. +
not arillate +
persistent +
free +  and distinct +
erect-patent +
obsolescent +
triangular +
accrescent +
6 cm60 mm <br />0.06 m <br /> (?) +
1-50-flowered +  and few-leaved +
Conservation concern +  and Endemic +
free +  and distinct +
branched +  and simple +
persistent +
distinct +
exsert +  and lateral +
elongate +
glabrous +  and tomentose +
Crataegus sect. Molles +
Crataegus mollis var. dumetosa +
Crataegus mollis +
variety +
7 cm70 mm <br />0.07 m <br /> (9 cm90 mm <br />0.09 m <br />) +
graying +  and blackish brown +
straight +
slender +  and stout +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
inconspicuous +
rough-corrugated +  and exfoliating +
less erect +  and oblique +
1 +  and several +
straight +
determinate +
4 +  and 7 +
tree +  and shrub +