Deeringothamnus rugelii

(B. L. Robinson) Small

Addisonia 15: 17, plate 489. 1930.

Common names: Rugel's pawpaw
Conservation concernEndemicIllustrated
Basionym: Asimina rugelii B. L. Robinson in A. Gray et al., Syn. Fl. N. Amer. 1(1): 465. 1897
Treatment appears in FNA Volume 3.
Revision as of 07:22, 30 July 2020 by imported>Volume Importer
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Leaves: petiole 1-2 mm. Leaf-blade oblong to obovate or oblanceolate, 1-7 cm, margins revolute, apex acute to obtuse, broadly rounded, often notched. Inflorescences: peduncle slender, 1-2.5 cm. Flowers spreading-ascending to recurved, canary yellow, rarely purple, faintly fragrant; sepals 2-3, erect or slightly spreading, ovate to oblong, ca. 10 mm, apex acute; petals prevalently 6, ascending to slightly spreading, lance-oblong, ca. 1.5 cm × ca. 3-4 mm; pistils (2-) 5 (-7), fusiform. Berries 3-6 cm. Seeds 1-1.5 cm, ± compressed laterally.


Phenology: Flowering spring, all year as disturbance reaction.
Habitat: Moist sandy peats of slash pine-palmetto flats, savannas
Elevation: 0-50 m

Discussion

Of conservation concern.

Deeringothamnus rugelii commonly associates with both Asimina pygmaea and A. reticulata, and overlaps in flowering time with both. No hybrids between the two genera had been observed until a recent discovery of a putative hybrid between D. rugelii and Asimina reticulata by Dr. E. Norman (pers. comm. 1994).

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Deeringothamnus rugelii"
acute;notched;rounded;acute;obtuse +
Robert Kral +
(B. L. Robinson) Small +
aromatic +
Asimina rugelii +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
oblong;obovate or oblanceolate +
Rugel's pawpaw +
blunt +  and short-cylindric +
0-50 m +
pedunculate +  and few-flowered +
canary yellow +
fragrant +
spreading-ascending;recurved +
unisexual +  and bisexual +
yellow-green +
oblong-cylindric +
coalescent +  and distinct +
Moist sandy peats of slash pine-palmetto flats, savannas +
petiolate +  and simple +
deciduous +
aromatic +
flat-topped +
3 +  and 8 +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
ascending;slightly spreading +
lance-oblong +
unequal +  and larger +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering spring, all year as disturbance reaction. +
fusiform +
septate;diaphragmed +
flat +  and elevated +
flat-surfaced +
3 +  and 8 +
compressed +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
imbricate +  and valvate +
persistent +
connate +  and distinct +
spreading +  and erect +
ovate;oblong +
10 cm100 mm <br />0.1 m <br /> (?) +
branched +  and simple +
arching +  and semidecumbent +
Conservation concern +, Endemic +  and Illustrated +
hypogynous +
10 +  and 20 +
fusiform +  and stout-linear +
Deeringothamnus rugelii +
Deeringothamnus +
species +
evergreen +  and deciduous +
unequal +