Solanum arcanum

{{Speciesbox

|image =

|status = LC

|status_system = IUCN3.1

|status_ref = {{Cite IUCN |last1=Gonzales Arce |first1=P. |last2=Knapp |first2=S. |date=2020 |title=Solanum arcanum |page=e.T71778895A71779012 |doi=10.2305/IUCN.UK.2020-3.RLTS.T71778895A71779012.en |access-date=1 November 2024 }}

|genus = Solanum

|species = arcanum

|authority = Peralta{{Cite POWO | last = POWO | date = 2024 | id = 60438513-2 | title = Solanum arcanum Peralta | access-date = 1 November 2024}}

|synonyms_ref =

|synonyms =

Lycopersicon peruvianum var. humifusum {{Small|C.H.Mull.}}

}}

Solanum arcanum is a species of flowering plant in the nightshade family Solanaceae in section Lycopersicon, the tomatoes, endemic to Peru.{{cite journal |last1=Peralta |first1=Iris E. |last2=Knapp |first2=Sandra |last3=Spooner |first3=David M. |title=New Species of Wild Tomatoes (Solanum Section Lycopersicon: Solanaceae) from Northern Peru |journal=Systematic Botany |volume=30 |issue=2 |year=2005 |pages=424–434 |issn=0363-6445 | jstor = 25064070 | doi=10.1600/0363644054223657 |s2cid=86254917 |url=https://naldc-legacy.nal.usda.gov/naldc/download.xhtml?id=2616&content=PDF |access-date=29 December 2018 |archive-date=30 October 2020 |archive-url=https://web.archive.org/web/20201030201738/https://naldc-legacy.nal.usda.gov/naldc/download.xhtml?id=2616&content=PDF |url-status=dead |url-access=subscription }}

Description

Solanum arcanum is a perennial {{cn-span|text=plant, woody at the base, being up to {{cvt|1|m|ft}} or more wide and up to {{cvt|1|m|ft}} tall. Its stem is between {{cvt|7|and|12|mm|in|1}} in diameter at its base, often hollow, green, glabrous to variously pubescent with a mixture of simple uniseriate trichomes.|date=November 2024}}

{{cn-span|text=Its sympodial units are 2-foliate; internodes being between {{cvt|2|and|6|cm|in|1}}. Its leaves are interrupted imparipinnate, green to pale beneath, glabrous to sparsely short pubescent with a mixture of simple uniseriate trichomes, some populations lacking trichomes. The petiolule is between {{cvt|0.5|and|1|cm|in|1}}.|date=November 2024}}

Inflorescences are between {{cvt|6|and|20|cm|in|0}} in size, simple, with 5–20 flowers, ebracteate or nearly all the nodes bracteate; peduncle between {{cvt|3.5|and|10|cm|in|1}}, glabrous and minutely glandular to densely velvety pubescent with intermixed longer patent trichomes like those of the stems. The pedicels are between {{cvt|1.1|and|1.7|cm|in|1}}, articulated at the middle or in the distal half. Buds are conical, straight, approximately half way exerted from the calyx. Flowers with the calyx tube are minute, the lobes lanceolate; corolla is between {{cvt|1.8|and|2|cm|in|1}}, pentagonal and yellow.{{Cite web |title=Solanum arcanum |publisher=PBI Project |url=https://solanaceaesource.myspecies.info/content/solanum-arcanum |website= Solanaceae Source (solanaceaesource.myspecies.info) |access-date=10 September 2024 }}

{{cn-span|text=Ovary is globose, glabrous or with a few minute trichomes at the apex; the style being between {{cvt|0.8|and|1|cm|in|1}}; stigma capitate and green. The fruit is between {{cvt|1|and|1.4|cm|in|1}} in diameter, globose and green with a dark green stripe around it that may change to purple at maturity. Seeds are obovate, narrowly winged at the apex and acute at the base, pale brown, pubescent with hair-like outgrowths of the tegument cell radial walls, which give the surface a silky appearance. Chromosome number: n=12.|date=November 2024}}

Distribution

It is found in coastal and inland Andean valleys in northern Peru at elevations {{Convert|100|–|2500|m|ft|abbr=off|-2}}.

Solanum arcanum

Description

Distribution

References

Further reading