Callaeum septentrionale

(A. Jussieu) D. M. Johnson

Syst. Bot. 11: 343. 1986.

Illustrated
Basionym: Hiraea septentrionalis A. Jussieu Ann. Sci. Nat. Bot., sér. 2, 13: 259. 1840
Synonyms: H. greggii S. Watson Mascagnia septentrionalis (A. Jussieu) Grisebach
Treatment appears in FNA Volume 12. Treatment on page 360.
Please click on the illustration for a higher resolution version.
Illustrator: Karin Douthit

Copyright: University of Michigan

Leaf-blades lanceolate to elliptic-ovate, larger blades 20–70 (–95) × 6–40 mm, base cuneate to rounded, apex acute or acuminate, abaxial surface tomentose or sparsely sericeous to glabrate, adaxial surface glabrous, bearing 1–3 small glands on each side near petiole apex or blade margin. Pedicels 6–24 mm, 1.8–5 times as long as peduncles. Samaras orbiculate or butterfly-shaped, lateral wings 10–42 (–55) × 16–21 mm, dorsal wing 10–17 × 6 mm. 2n = 20 (Mexico).


Phenology: Flowering year-round, most commonly May–Sep; fruiting Jun–Oct.
Habitat: Brushy woodlands.
Elevation: 100–200 m.

Discussion

Callaeum septentrionale is distinctive in the flora area, being the only native species of Malpighiaceae with hairy petals and orbiculate or butterfly-shaped samaras with dominant lateral wings. The posterior three anthers are smaller than the anterior seven, and the stigma, borne on the internal angle of the style, is oblate (wider than high). The species has the ability to climb, but when growing without support it can be shrubby, with the branches then often trailing. Callaeum septentrionale is known in the flora area only from south of Laredo, but it is to be sought in southern Texas near the Mexican states of Nuevo León and Tamaulipas. It is sometimes cultivated as an ornamental in southern Arizona and southern California; C. macropterum (de Candolle) D. M. Johnson is also cultivated in southern Arizona. There is no evidence that either species has become naturalized in either state.

Selected References

None.

Lower Taxa

None.
... more about "Callaeum septentrionale"
sparsely sericeous;glabrate +
notably larger +
Acuminate (?) +  and Acute (?) +
William R. Anderson† +
(A. Jussieu) D. M. Johnson +
cuneate +  and rounded +
Hiraea septentrionalis +
Tex. +  and e Mexico +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
100–200 m. +
multicellular +
Brushy woodlands. +
2-armed +  and unicellular +
submedifixed +  and medifixed +
terminal +  and axillary +
7 cm70 mm <br />0.07 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (4 cm40 mm <br />0.04 m <br />) +
4.2 cm42 mm <br />0.042 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4.2 cm42 mm <br />0.042 m <br />) +
1.8-5 times as long as peduncles +
0.6 cm6 mm <br />0.006 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
tomentose +  and white-sericeous +
Flowering year-round, most commonly May–Sep +  and fruiting Jun–Oct. +
butterfly--shaped +  and orbiculate +
connate +  and distinct +
Illustrated +
free +, connate +  and distinct +
distinct +
cylindric +
H. greggii +  and Mascagnia septentrionalis +
Callaeum septentrionale +
Callaeum +
species +
few-flowered +
deciduous +, evergreen +  and perennial +
vine +  and shrub +