Difference between revisions of "Crataegus viridis var. lanceolata"

(Sargent) E. J. Palmer

Ann. Missouri Bot. Gard. 22: 561. 1935.

Endemic
Basionym: Crataegus lanceolata Sargent Trees & Shrubs 2: 65, plate 130. 1908
Synonyms: C. interior Beadle
Treatment appears in FNA Volume 9. Treatment on page 533. Mentioned on page 532, 534.
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Revision as of 20:38, 24 September 2019

Stems: trunk bark light gray, ± exfoliating; 1-year old twigs gray. Leaves: blade ± lanceolate, narrowly elliptic to narrowly obovate or oblong, 2.5–6 cm, thin, base cuneate, lobes 0 or obscure else rarely 1 per side, distinct, but not on most leaves, sinuses shallow, max LII 5(–20)%, margins serrulate-crenate, mainly in distal 2/3, sometimes entire, teeth to 1 mm, venation craspedodromous, sometimes semicamptodromous, veins 3–7 per side (often dividing before margin), apex acute to acuminate, surfaces glabrous except abaxially with tufts of hair in vein axils. Inflorescences: branches glabrous. Flowers: hypanthium glabrous.


Phenology: Flowering Apr; fruiting Sep–Nov.
Habitat: Moist, fertile, alluvial woodlands, agricultural derivatives of these
Elevation: 10–200 m

Distribution

V9 894-distribution-map.jpg

Ala., Ark., Fla., Ga., La., Miss., Mo., S.C., Tex.

Discussion

The range of var. lanceolata is poorly documented; it appears to be rather common in Louisiana and extends into Missouri, into eastern Texas, and through Alabama to South Carolina. In its most extreme expression, it is readily distinguished; it intergrades with both var. ovata and var. viridis. The foliage, with its distinctive venation, and the usually small- and few-flowered inflorescences are characteristic. Particularly large, oblong leaf forms of var. lanceolata have been referred to Crataegus interior.

Selected References

None.

Lower Taxa

None.
James B. Phipps +
(Sargent) E. J. Palmer +
Crataegus lanceolata +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, Mo. +, S.C. +  and Tex. +
10–200 m +
Moist, fertile, alluvial woodlands, agricultural derivatives of these +
Flowering Apr +  and fruiting Sep–Nov. +
Ann. Missouri Bot. Gard. +
C. interior +
Crataegus viridis var. lanceolata +
Crataegus viridis +
variety +