Physical Description

Diagnostic Description

Formal Description

Habit

Shrub or small tree, 2-6 m tall; young stems and leaves densely red-papillose, the new growth appearing greyish and matte on live plants; stems fleshy and green, strongly winged, the wings 2-5 mm broad; bark of older stems soon glabrate, greyish.

Sympodial Structure

Sympodial units difoliate, geminate.

Leaves

Leaves elliptic, widest at the middle, glabrous and shiny above, paler below, occasionally minutely red-papillose on the veins below; major leaves 20-50 x 10-20 cm, with 15-17 parallel pairs of main lateral veins, the apex acute, the base acuminate, decurrent on the petiole and from there onto the stem; petioles strongly winged from the bases of the decurrent leaf blades, 4-7 cm long; minor leaves differing from the major ones only in size, 15-19 x 9-11 cm, the apex acute, the base acuminate, winged onto the petiole; petioles 1.5-2 cm long.

Inflorescences

Inflorescences opposite the leaves, simple or very occasionally furcate, 0.5-1 cm long, 3-5-flowered, minutely red-papillose like the young stems and leaves; pedicel scars closely spaced and overlapping. Buds ovoid, the calyx a completely closed envelope until just before anthesis, when the corolla emerges and tears the lobes. Pedicels at anthesis white and fleshy, 1.5-2 cm long, abruptly narrowing below the calyx tube, then tapering to 0.5-1 mm in diam. dry specimens (thicker in live plants).

Flowers

Flowers with the calyx tube campanulate, 3-3.5 mm long, occasionally minutely red-papillose, the lobes very irregular in shape, 3-5 mm long, the margins thick and white in dry specimens; corolla white, rather fleshy, 2-3 cm in diam., planar at anthesis, lobed nearly to the base, the corolla tube only 1 mm long, the lobes wider at the middle than at the base, the tips and margins of the lobes minutely papillose; anthers 4-6 x 1-1.5 mm, poricidal at the tips, the pores tear-drop shaped, the anthers tightly connate at anthesis; free portion of the filaments ca. 1 mm long, the filament tube ca. 0.5 mm long; ovary densely pinkish-grey papillose, the papillae minute in flower, growing with the fruit; style straight, ca. 1.3 cm long; stigma bilobed, the surface minutely papillose.

Fruits

Flowers with the calyx tube campanulate, 3-3.5 mm long, occasionally minutely red-papillose, the lobes very irregular in shape, 3-5 mm long, the margins thick and white in dry specimens; corolla white, rather fleshy, 2-3 cm in diam., planar at anthesis, lobed nearly to the base, the corolla tube only 1 mm long, the lobes wider at the middle than at the base, the tips and margins of the lobes minutely papillose; anthers 4-6 x 1-1.5 mm, poricidal at the tips, the pores tear-drop shaped, the anthers tightly connate at anthesis; free portion of the filaments ca. 1 mm long, the filament tube ca. 0.5 mm long; ovary densely pinkish-grey papillose, the papillae minute in flower, growing with the fruit; style straight, ca. 1.3 cm long; stigma bilobed, the surface minutely papillose.

Seeds

Seeds pale tan, ovoid-reniform, ca. 5 x 4 mm, the surfaces minutely pitted.

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Type Information

Isotype for Solanum abitaguense S. Knapp
Catalog Number: US 3024846
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: Cashurcu, 13-14 km W of Mera on Banos - Mera rd., Tungurahua, Ecuador, South America
Elevation (m): 1200 to 1400
  • Isotype: Knapp, S. 1986. Brittonia. 38: 290.
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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Isotype for Solanum abitaguense S. Knapp
Catalog Number: US 3071362
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: Cashurcu, 13-14 km W of Mera on Banos - Mera road., Tungurahua, Ecuador, South America
Elevation (m): 1200 to 1400
  • Isotype: Knapp, S. 1986. Brittonia. 38: 290.
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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Default rating: 2.5 of 5

Isotype for Solanum abitaguense S. Knapp
Catalog Number: US 3071359
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: Cashurcu, 13-14 km W of Mera on Banos - Mera road., Tungurahua, Ecuador, South America
Elevation (m): 1200 to 1400
  • Isotype: Knapp, S. 1986. Brittonia. 38: 290.
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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Article rating from 0 people

Default rating: 2.5 of 5

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