Lithospermum

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Lithospermum
Nawrot czerwonoblekitny Lithospermum purpurocaeruceum.jpg
Lithospermum purpurocaeruleum
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Boraginales
Family: Boraginaceae
Subfamily: Boraginoideae
Genus: Lithospermum
L.
Type species
Lithospermum officinale
L.
Species

about 50-60, see text

Synonyms [1]
  • BatschiaJ.F.Gmel.
  • CyphorimaRaf.
  • LasiarrhenumI.M.Johnst.
  • MacromeriaD.Don
  • NomosaI.M.Johnst.
  • OnosmodiumMichx.
  • OsmodiumRaf.
  • PentalophusDC.
  • PerittostemaI.M.Johnst.
  • PsilolaemusI.M.Johnst.
  • PurshiaSpreng.

Lithospermum is a genus of plants belonging to the family Boraginaceae. The genus is distributed nearly worldwide, but most are native to the Americas and the center of diversity is in the southwestern United States and Mexico. [2] Species are known generally as gromwells or stoneseeds.

Contents

Taxonomy

Plants of the World Online currently accepts 84 species. [3] Other sources accept about 50 [4] to 60 species in the genus. [5] A 2009 molecular study showed that the genus Onosmodium is included within Lithospermum. [2]

Species

84 species are accepted. [3] [4] [6] [7]

Formerly placed here

Ecology

Lithospermum leaves are eaten by the caterpillars of certain Lepidoptera, such as the moth Ethmia pusiella which has been recorded on L. officinale.

Uses

The dried root of Lithospermum erythrorhizon is a Chinese herbal medicine with various antiviral and biological activities, including inhibition of human immunodeficiency virus type 1 (HIV-1). [9] [10] Lithospermum erythrorhizon is native to Japan, where it has been traditionally used to make a purple dye. In southwestern North America, a species of this genus was used as a contraceptive by the Shoshone Native American tribe. [11]

Fossil record

7 petrified nutlets and nutlet fragments of a Lithospermum species have been described from the Late Miocene Ash Hollow Formation, Ogallala Group, five km south of Martin in Bennett County, South Dakota. †Lithospermum dakotense sp. nov. shows similarities in size, shape, attachment and epidermal cell patterns to extant Lithospermum species. The fossil nutlets were preserved in various stages of maturity. The fossils closely resemble the nutlets of Lithospermum caroliniense and Lithospermum incisum . [12]

Related Research Articles

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References

  1. "Lithospermum L. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 23 June 2022.
  2. 1 2 Cohen, James I.; Davis, Jerrold I. (2009). "Nomenclatural changes in Lithospermum (Boraginaceae) and related taxa following a reassessment of phylogenetic relationships". Brittonia. 61 (2): 101–111. doi:10.1007/s12228-009-9082-z. S2CID   31935880.
  3. 1 2 Lithospermum L. Plants of the World Online . Retrieved 27 July 2024.
  4. 1 2 "Lithospermum Linnaeus, Sp. Pl. 1: 132. 1753". Flora of China.
  5. Cohen, J. I., (2012). Comparative floral development in Lithospermum (Boraginaceae) and implications for the evolution and development of heterostyly. American Journal of Botany 99(5), 797–805.
  6. GRIN Species Records of Lithospermum. Archived 2015-09-24 at the Wayback Machine Germplasm Resources Information Network (GRIN).
  7. Lithospermum. USDA Plants: North American species.
  8. 1 2 3 4 5 Weigend, M., et al. (2010). Five new species of Lithospermum L.(Boraginaceae tribe Lithospermeae) in Andean South America: another radiation in the Amotape-Huancabamba zone. Taxon 59(4), 1161–1179.
  9. Chen, X., et al. (2003). Shikonin, a component of Chinese herbal medicine, inhibits chemokine receptor function and suppresses human immunodeficiency virus type 1. Antimicrobial Agents and Chemotherapy 47(9), 2810–2816.
  10. Gao, H., et al. (2011). Anti-adenovirus activities of shikonin, a component of Chinese herbal medicine in vitro. Biol Pharm Bull. 34(2) 197–202.
  11. "Health – Contraceptive, Indian Style". Chatelaine. June 1964.
  12. Amer. J. Bot. 74(11): 1690-1693. 1987. A Fossil Lithospermum (Boraginaceae) from the Tertiary of South Dakota by Mark L. Gabel