Crataegus scabrida var. cyclophylla

(Sargent) Kruschke

Publ. Bot. Milwaukee Public Mus. 3: 170. 1965.

Conservation concernEndemic
Basionym: Crataegus cyclophylla Sargent Rhodora 7: 210. 1905
Synonyms: C. brainerdii var. cyclophylla (Sargent) E. J. Palmer
Treatment appears in FNA Volume 9. Treatment on page 524.

Leaf-blades broadly elliptic, 3–5 cm, adaxial surface sparsely to densely appressed-pubescent young, glabrescent. Inflorescence branches glabrous. Flowers: hypanthium glabrous.


Phenology: Flowering May–Jun; fruiting Sep–Oct.
Habitat: Brush, roadsides, woodland edges
Elevation: 20–200 m

Discussion

Of conservation concern.

Variety cyclophylla grows in southern New England and eastern Ontario.

Selected References

None.

Lower Taxa

None.
glabrescent +  and appressed-pubescent +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
James B. Phipps +
(Sargent) Kruschke +
compound +  and simple +
opposite +  and alternate +
rounded +  and cuneate +
Crataegus cyclophylla +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
less ovate or rhombic-elliptic +  and rhombic-elliptic +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
short-ovate +  and ovate broadly elliptic +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
villous +  and glabrous +
adnate +  and distinct +
crowded +, scattered +  and alternate +
Ont. +, Conn. +, Mass. +  and Vt. +
not +  and aggregated +
20–200 m +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 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 +, tan +  and deep reddish-brown +
older +, old +  and new +
Brush, roadsides, woodland edges +
constricted +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
deciduous +
craspedodromous +
glandular-serrate +  and 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 +
sessile-glandular +  and eglandular +
glabrous +  and pubescent +
Flowering May–Jun +  and fruiting Sep–Oct. +
adnate +, free +, connate +  and distinct +
dark gray-brown +  and russet +
exfoliating +  and corrugated +
pruinose +
orange-red +  and reddish +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
pubescent +  and glabrous +
suborbicular +
Publ. Bot. Milwaukee Public Mus. +
not arillate +
persistent +
free +  and distinct +
glandular-serrate +  and subentire +
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 +
C. brainerdii var. cyclophylla +
Crataegus scabrida var. cyclophylla +
Crataegus scabrida +
variety +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
dark-brown +  and nearly black +
slender +  and stout +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
craspedodromous +  and gland-tipped +
inconspicuous +
less erect +  and oblique +
1 +  and several +
reddish-brown +  and dark +
determinate +
stout +  and more or less slender +
5 +  and 7 +