Crataegus collina var. sordida

(Sargent) Eggleston

Rhodora 10: 76. 1908.

Conservation concernEndemic
Basionym: Crataegus sordida Sargent Bot. Gaz. 33: 114. 1902
Treatment appears in FNA Volume 9. Treatment on page 545. Mentioned on page 543, 544, 638, 639.

Leaf-blades ± obtrullate, 3.5–5 cm, 1/2 grown at anthesis, length/width = 1.4–1.5, subcoriaceous, lobes 0 or 1–3 per side, max LII 15%, lobe apex acute, margins serrate distally, teeth 1.5 mm, apex subacute to acute, adaxial surface matte to sublustrous young, with short, scattered, caducous hairs. Inflorescence branches sparsely pubescent. Flowers 15 (–20) mm diam.; stamens 20, anthers rose.


Phenology: Flowering Apr; fruiting Sep–Nov.
Habitat: Brush, open woodlands
Elevation: 100–200 m

Discussion

Of conservation concern.

Variety sordida is rare in southern Missouri.

B. F. Bush noted on a herbarium label that var. sordida flowered later and had larger flowers than sympatric Crataegus collina, assumed to be var. collina. The bracteoles of var. sordida are particularly narrow (20:1). Variety sordida has not been recorded since the early 1900s.

Selected References

None.

Lower Taxa

None.
68 +, 51 +  and 34 +
scabrous-pubescent +
glabrescent +  and scabrous-pubescent +
matte +  and sublustrous +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
James B. Phipps +
(Sargent) Eggleston +
orangebrown +
thin-exfoliating +  and corrugated +
compound +  and simple +
opposite +  and alternate +
tapering +
Crataegus sordida +
3.5 cm35 mm <br />0.035 m <br /> (5 cm50 mm <br />0.05 m <br />) +
5 cm50 mm <br />0.05 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
rhombic-elliptic +, obtrullate +, obovate +, elliptic +  and rhombic-obovate +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
appressed-pubescent +
adnate +  and distinct +
crowded +, scattered +  and alternate +
not +  and aggregated +
100–200 m +
15 cm150 mm <br />0.15 m <br /> (1.5 cm15 mm <br />0.015 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 />) +
gray +  and grayish brown +
older +, old +  and new +
Brush, open woodlands +
pubescent +  and glabrous +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
short-stipitate-glandular +
serrate +  and crenate +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
eglandular +  and unwinged +
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 +
pubescent +
1 cm10 mm <br />0.01 m <br /> (?) +
Flowering Apr +  and fruiting Sep–Nov. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
ruddy +  and deep red +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
orbicular +
not arillate +
persistent +
free +  and distinct +
patent-reflexed +
triangular +
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. Mexicanae +  and Crataegus ser. +
Crataegus collina var. sordida +
Crataegus collina +
variety +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
straight +
slender +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
craspedodromous +  and gland-tipped +
1.5 cm15 mm <br />0.015 m <br /> (?) +
inconspicuous +
less erect +  and oblique +
1 +  and several +
determinate +
few +  and numerous +
not +  and pubescent +
5 +  and 7 +