Iris setina, the iris of Sezze, is a species in the genus Iris, it is also in the subgenus of Iris. It is a rhizomatous perennial, from a small region in Italy.It has glaucous sword-like leaves, slender branched stem, and one or two violet toned flowers. It is not yet cultivated as an ornamental plant in temperate regions.
| Iris setina | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Iridaceae |
| Genus: | Iris |
| Subgenus: | Iris subg. Iris |
| Species: | I. setina
|
| Binomial name | |
| Iris setina | |
Description
editIt is similar in form to Iris germanica.[1]
It has evergreen, glaucous and smooth leaves. Most are ensiform (sword-like) but a few were falcate (sickle-shaped). They can grow up to 40 cm (16 in) long and between 3 cm wide. Although, the leaves at the stem base are smaller.[1]
It has a slender stem or peduncle, that can grow up to between 11 and 50 cm (4 and 20 in) tall.[1][2][3] They normally have 2 branches,[3] the lowest branch is about 11–14 cm (4–6 in) long. The branches have one small, narrow stem leaf, around 7–10 cm (3–4 in) long.[1]
The upper branch has a slightly inflated spathes (leaves of the flower bud), which are slightly violet stained or marked.[1]
The stems (and branches) hold between 1 and 2 terminal flowers, blooming between February and early March.[1]
The flowers come in shades of violet,[3] or violet-purple.[2] Like other irises, it has 2 pairs of petals, 3 large sepals (outer petals), known as the 'falls' and 3 inner, smaller petals (or tepals), known as the 'standards'.[4]: 17 Some flowers are bi-toned,[3] with the falls darker than standards.[1]
After the iris has flowered, it produces a seed capsule, which has not yet been described.
Biochemistry
editAs most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings.[4]: 18
In 1993, Colasante & Saur (in Linzer biol. Beitr. Vol.25, Issue2 on page 1189) stated that Iris setina could be regarded as an allopolyploid and theorise that it may have derived from other bearded dwarf species such as Iris pseudopumila Tineo and Iris pallida Lam.[1]
It also has a chromosome count of 2n=40,[1][2][3] which is the same as Iris bicapitata, Iris relicta, Iris lutescens and Iris revoluta.[5]
Taxonomy
editThe Latin specific epithet setina refers to 'Setia',[6][7] which is an old form of Sezze,[8] a town in the region of Latium (which is now Lazio, one of the administrative regions of Italy).[1]
In 1958, Professor Ignazio Ricci (1922–1986),[9] found the iris on Monte Trevi (near the town of Sezze) in Latium, south of Rome. He then reported and published the discovery in 'Annali Botanica' (Roma) Vol.26 (Issue 1) on pages 43–49, as being different to forms of Iris germanica L.[1]
Then on 15 February 1974, more specimens of the iris were found on the Monte Trevi and then sent to Maretta Colasante, who named the iris as Iris setina and then described and published it in Giornale Botanico Italiano (Giorn. Bot. Ital.) Vol.120 (1–2) Supplement 1 on page 112. on 30 September 1989.[1][6]
It was then published in Bulletin of the American Iris Society Vol.292 on pages 82–85 in January 1994.[1]
It is listed in the Encyclopedia of Life,[10] and is listed on the Catalogue of Life,[11] but has not yet been assessed for the IUCN Red List as of October 2015.[12]
Distribution and habitat
editRange
editIt is found near the town of Sezze,[1][2][5] within the region of Latina,[5] in Italy.[3][6]
Propagation
editIrises can generally be propagated by division,[13] or by seed growing.
Toxicity
editLike many other irises, most parts of the plant are poisonous (rhizome and leaves), and if mistakenly ingested can cause stomach pains and vomiting. Handling the plant may cause skin irritation or an allergic reaction.[14]
References
edit- ^ a b c d e f g h i j k l m n Franco, Alain (24 December 2014). "(SPEC) Iris setina Colas". wiki.irises.org (American Iris Society). Retrieved 5 January 2016.
- ^ a b c d "Iris summary" (PDF). pacificbulbsociety.org. 14 April 2014. Retrieved 23 November 2014.
- ^ a b c d e f Kramb, D. (5 September 2004). "Iris setina". signa.org (Species Iris Group of North America). Retrieved 5 January 2016.
- ^ a b Austin, Claire (2005). Irises; A Garden Encyclopedia. Timber Press. ISBN 0881927309.
- ^ a b c Colasante, M.; Vosa, C.G. (2000). "Iris:Allocyclic segments as Chromosome markers?". Annali di Botanica. 58: 127–134. Retrieved 28 October 2015.[permanent dead link]
- ^ a b c d "Iridaceae Iris setina Colas". ipni.org (International Plant Names Index). Retrieved 5 January 2016.
- ^ Peruzzi, Lorenzo; Domina, Gianniantonio; Bartolucci, Fabrizio; Galasso, Gabriele; Peccenini, Simonetta; Raimondo, Francesco M.; Albano, Antonella; Alessandrini, Alessandro; Banfi, Enrico; Barberis, Giuseppina; Bernardo, Liliana; Bovio, Maurizio; Brullo, Salvatore; Brundu, Giuseppe; Brunu, Antonello; Camarda, Ignazio; Carta, Luisa; Conti, Fabio; Croce, Antonio; Iamonico, Duilio; Iberite, Mauro; Iiriti, Gianluca; Longo, Daniela; Marsili, Stefano; Medagli, Pietro; Pistarino, Annalaura; Salmeri, Cristina; Santangelo, Annalisa; Scassellati, Elisabetta; Selvi, Federico; Soldano, Adriano; Stinca, Adriano; Villani, Mariacristina; Wagensommer, Robert P.; Passalacqua, Nicodemo G. (30 January 2015). "An inventory of the names of vascular plants endemic to Italy, their loci classici and types". Phytotaxa. 196 (1). Magnolia Press: 107. doi:10.11646/phytotaxa.196.1.1. hdl:10447/196152.
- ^ Stillwell, Richard; MacDonald, William L.; Holland, Marian. "SETIA (Sezze) Italy". perseus.tfts.edu (The Princeton Encyclopedia of Classical Sites). Retrieved 26 January 2016.
- ^ "Ricci, Ignazio (1922–1986)". ipni.org. Retrieved 26 January 2016.
- ^ "Iris setina". eol.org. Retrieved 5 January 2016.
- ^ "Iris setina Colas". catalogueoflife.org. Retrieved 5 January 2016.
- ^ "Search". iucnredlist.org. Retrieved 16 October 2015.
- ^ "How to divide iris rhizomes". gardenersworld.com. Retrieved 12 October 2015.
- ^ David G Spoerke and Susan C. SmolinskeToxicity of Houseplants, p. 236, at Google Books
External links
edit- Painted image of the iris in flower[permanent dead link]
- Has images of the iris from the Botanical Garden of Rome, Italy
- Photo of the iris from Monti Lepini.
Data related to Iris setina at Wikispecies