familyMoraceae
genusMaclura

Maclura

Nuttall

Gen. N. Amer. Pl. 2: 233. 1818, name conserved.

Common names: Osage-orange bois d'arc
Etymology: for American geologist William Maclure, 1763-1840
Treatment appears in FNA Volume 3. Treatment on page 393.
 TaxonIllustrator 
FNA03 P74 Maclura Brosimum Dorstenia pg 394.jpegDorstenia contrajerva
Brosimum alicastrum
Maclura pomifera
John Myers
John Myers
John Myers

Trees, deciduous; sap milky. Branches with axillary spines. Terminal buds surrounded by bud-scales. Leaves alternate; stipules caducous, free. Leaf-blade ovate to lanceolate, not leathery, margins entire, never lobed; venation pinnate. Inflorescences: flowers borne outside receptacle; staminate inflorescences loose short racemes; pistillate inflorescences dense heads. Flowers: staminate and pistillate on different plants. Staminate flowers: calyx 4-lobed; stamens 4, inflexed; filaments filiform; anthers introrse, with short connective. Pistillate flowers: sepals 4, 2 outer sepals wider than inner ones; ovary 1, superior, 1-locular; style unbranched, filiform. Syncarps globose, 8-12 cm or more diam.; each achene completely enclosed by its enlarged, fleshy calyx.

Distribution

North America

Discussion

Species 1 (1 in the flora).

Maclura is a monotypic genus endemic to North America.

Selected References

None.

Lower Taxa

"wider" is not a number.

... more about "Maclura"
Richard P. Wunderlin +
Nuttall +
3 (?) +  and 5 (?) +
4-lobed +
enlarged +
Osage-orange +  and bois d'arc +
North America +
for American geologist William Maclure, 1763-1840 +
pistillate +  and staminate +
pistillate +  and staminate +
with 3-5 basal palmate veins +  and pinnate +
ovate +  and lanceolate +
not leathery +
pinnate +  and entire +
1-2-carpellate +
Gen. N. Amer. Pl. +
flask--shaped +
connate +  and distinct +
2 +  and 4 +
filiform +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Maclura +
Moraceae +
flattened +