Overview

Distribution

In middle elevation forests in eastern Ecuador and adjacent Peru, 900 to 1500 m.

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Physical Description

Diagnostic Description

Formal Description

Habit

Delicate shrub or small slender treelet 1-3 m tall; young stems completely glabrous, shiny and green; bark of the older stems grey.

Sympodial Structure

Sympodial units unifoliate.

Leaves

Leaves elliptic to lanceolate, widest at the middle, glabrous on both surfaces, the undersurfaces pale in both dry and live plants, 8-16 x 2-5 cm, with 7-9 pairs of main lateral veins, these raised above, in dry specimens somewhat prominent below, darkish, the rest of the venation obscure, the apex acute, the base acute, decurrent on the petiole; petioles 0.8-2 cm long, longer on older leaves.

Inflorescences

Inflorescences opposite the leaves, minute, simple, 3-5 mm long, 3-6-flowered, glabrous; pedicel scars closely spaced, but not overlapping. Buds globose, when very young minutely hirsute with uniseriate trichomes ca. 0.1 mm long or less, the corolla soon exserted from the calyx. Pedicels at anthesis slender, 6-8 mm long, deflexed, ca. 0.3 mm in diam. at the base.

Flowers

Flowers with the calyx tube not much differentiated from the pedicel, ca. 0.25 mm long, the lobes broadly deltoid, minutely apiculate, ca. 0.25 mm long, glabrous except for the tips of the lobes; corolla white, minute, 4-5 mm in diam., lobed ca. 2/3 of the way to the base, the lobes reflexed at anthesis, the tips of the lobes minutely papillose; anthers 1-1.5 mm long, ca. 0.75 mm wide, poricidal at the tips, the pores tear-drop shaped; free portion of the filaments ca. 0.25 mm long, the filament tube ca. 0.25 mm long; ovary glabrous; style straight, in long-styled flowers ca. 3 mm long, ca. 1 mm long in short-styled flowers; stigma a papillose area on the tips of the style.

Fruits

Fruit a globose, green berry, ca. 1 cm in diam. (immature); fruiting pedicels erect, woody, 2-2.2 cm long, ca. 0.75 mm in diam. at the base.

Seeds

Seeds not known from mature fruit.

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Type Information

Isotype for Solanum bellum S. Knapp
Catalog Number: US 3066251
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): S. Knapp & J. Mallet
Year Collected: 1984
Locality: Along Rio Metzera Grande on Hacienda San Gay, near Palora., Morona-Santiago, Ecuador, South America
Elevation (m): 950 to 950
  • Isotype: Knapp, S. 1986. Brittonia. 38: 294.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Botany

Source: National Museum of Natural History Collections

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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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Evolution and Systematics

Systematics or Phylogenetics

Phylogeny

Solanum bellum is a member of the Solanum unifoliatum species group (Knapp, 2002) of the Geminata clade (Bohs, 2005).

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
NT
Near Threatened

Red List Criteria

Version
3.1

Year Assessed
2004

Assessor/s
Montúfar, R. & Pitman, N.

Reviewer/s
Valencia, R., Pitman, N., Léon-Yánez, S. & Jørgensen, P.M. (Ecuador Plants Red List Authority)

Contributor/s

Justification
A shrub or treelet endemic to eastern Ecuador. Grows in wet forest generally below 1,000 m elevation, but higher in the cordilleras of Cutucú and Huacamayos. Not known to occur inside Ecuador’s protected areas network, but expected to be found in the Parque Nacional Sumaco-Napo-Galeras and perhaps in the Parque Nacional Yasuní. Apart from habitat destruction, no specific threats are known.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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Wikipedia

Solanum bellum

Solanum bellum is a species of plant in the Solanaceae family. It is endemic to Ecuador.

Source


Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

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References and More Information

Commentary

Solanum bellum is most probably closely related to S. unifoliatum and S. triplinervium from western Colombia, with unifoliate nodes and minute flowers, but is the only member of the species group to occur on the eastern slope of the Andes. Solanum bellum differs from those species in its fleshy leaves that dry pale on the undersides. The leaves on dry specimens are extremely pale on the undersides, and often the secondary venation is not at all obvious. Leaves of live plants develop a silvery sheen when growing in full sunlight, and are generally paler than those of other members of section Geminata.

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