Crataegus schuettei var. ferrissii

(Ashe) Kruschke

Publ. Bot. Milwaukee Public Mus. 3: 176. 1965.

Conservation concernEndemic
Basionym: Crataegus ferrissii Ashe J. Elisha Mitchell Sci. Soc. 17: 11. 1901 (as ferrissi)
Treatment appears in FNA Volume 9. Treatment on page 566. Mentioned on page 565.

Leaf blades ovate to ovate-oblong, 3–6 cm, base rounded to subtruncate, sinuses deep (max LII 25–40%), proximal lobe most deeply separated, spreading at 60º–80º. Inflorescence branches glabrous. Flowers 15–20 mm diam. Pomes 9–12 mm diam.


Phenology: Flowering May; fruiting Sep–Oct.
Habitat: Brush, field margins, woodland edges
Elevation: 300 m

Discussion

Of conservation concern.

Variety ferrissii is a very distinct form from northern Illinois that has recently been rediscovered near Tinley Park; it should perhaps be referred to another species.

Selected References

None.

Lower Taxa

None.
James B. Phipps +
(Ashe) Kruschke +
Crataegus ferrissii +
Brush, field margins, woodland edges +
Flowering May +  and fruiting Sep–Oct. +
Publ. Bot. Milwaukee Public Mus. +
Conservation concern +  and Endemic +
Crataegus sect. Tenuifoliae +
Crataegus schuettei var. ferrissii +
Crataegus schuettei +
variety +