Jaques Étienne Gay

Swiss-french botanist, civil servant and botanical collector (1786-1864).

Jaques Étienne Gay (1786 in Switzerland – 1864) was a Swiss-French botanist, civil servant, collector and taxonomist. His name is associated with plants in standardised botanical nomenclature, e.g. Crocus sieberi J.Gay. He was the most famous of the students of botanist Jean François Aimée Gaudin with whom he began collecting plants at the age of 14. He was married to Rosalie Nillion. The botanical genus Gaya was named in his honour, as well as the genus Neogaya belonging to the family Apiaceae. Also the species Potamogeton gayi A.Benn. in 1892.

Abbreviations: J.Gay
Occupations: botanist
Citizenships: Switzerland, France
Languages: French
Dates: 1786-10-11T00:00:00Z – 1864-01-16T00:00:00Z
Birth place: Nyon
Direct attributions: 92 plants, 0 fungi
Authorship mentions: 175 plants, 0 fungi

92 plants attributed, 83 plants contributed to175 plants:

Cota tinctoria (Golden Chamomile) (L.) J.Gay 1845
perennial plant species in the asteraceae family
Cota tinctoria, the golden marguerite, yellow chamomile, or oxeye chamomile, is a species of perennial flowering plant in the sunflower family. Other common names include dyer's chamomile, Boston daisy, and Paris daisy. In horticulture this plant is still widely referred to by its synonym Anthemis tinctoria. It is a short-lived plant often treated as biennial, native to Europe, the Mediterranean and Western Asia and naturalized in scattered locations in North America. It has aromatic, bright green, feathery foliage. The serrate leaves are bi-pinnatifid (= finely divided) and downy beneath. It
Geranium endressii (French Crane's-bill) J.Gay 1832
perennial plant species in the geraniaceae family
Geranium endressii, commonly called Endres cranesbill or French crane's-bill, is a species of hardy flowering herbaceous or semi-evergreen perennial plant in the genus Geranium, family Geraniaceae. It is native to the Western Pyrenees in Spain, and is cultivated as a garden subject. Growing to 75 cm (30 in) tall and broad, it has a mounding to sprawling habit, therefore is useful as groundcover in light shade. The leaves are deeply divided and the flowers are soft pink with red veins. It is very hardy, down to at least −20 °C (−4 °F) and possibly less. The cultivar ‘Castle Drogo’ has gained
Crocus banaticus (Byzantine Crocus) J.Gay 1831
plant species in the iridaceae family
Crocus banaticus, is a species of flowering plant in the family Iridaceae. It is native to the Balkans, particularly in Serbia, Romania and south western Ukraine. It creates its own subgenus in the Crocus subfamily known as Crociris. It is a cormous perennial growing to 10 cm (4 in). Flowers, usually violet but also white, appear in autumn (fall). The small inner tepals are surrounded by three larger tepals, unlike the more symmetrical crocus species found outside of the subfamily. The flowers are followed by grass-like leaves, lacking the silver stripe normally associated with the genus.
Fragaria daltoniana J.Gay 1857
perennial plant species in the rosaceae family
Fragaria daltoniana is a species of flowering plant in the family Rosaceae. It is a strawberry native to the Himalayas. Its fruit has a poor flavor, and is of no commercial value. All strawberries have a base haploid count of 7 chromosomes. Fragaria daltoniana is diploid, having 2 pairs of these chromosomes for a total of 14 chromosomes. Fragaria daltoniana is one of the two Fragaria species containing a genome that is cold-resistant that can improve the growth and yielding of garden strawberry crops from abiotic stress.
Siebera J.Gay 1827
plant genus in the asteraceae family
Siebera is a genus of flowering plants in the tribe Cardueae in the family Asteraceae, native to Western Asia. Species Siebera nana (DC.) Bornm. - Israel, Palestine, Jordan, Lebanon, Syria, Turkey, Iran, Afghanistan Siebera pungens (Lam.) J.Gay - Israel, Palestine, Jordan, Lebanon, Syria, Turkey
Cota (Cota (plant)) J.Gay 1845
plant genus in the asteraceae family
Cota is a genus belonging to the chamomile tribe within the sunflower family. It is native to Europe, North Africa, and southwestern Asia, with a few species naturalized elsewhere. It is an herbaceous plant with flower heads including white or yellow ray florets and yellow disc florets. Species
Groenlandia J.Gay 1854
plant genus in the potamogetonaceae family
Groenlandia is a monotypic genus of aquatic plants (pondweed) of the family Potamogetonaceae. The only species in the genus is Groenlandia densa. Opposite-leaved pondweed is a common name for this plant. It is native to much of Europe, western Asia and Maghreb in Africa; despite its name it is not found in Greenland.
Fragaria nilgerrensis (Nilgiri Strawberry) Schltdl. ex J.Gay 1857
perennial, medicinal, and fruit plant species in the rosaceae family
Fragaria nilgerrensis, the nilgiri strawberry, is a species of flowering plant in the family Rosaceae. It is a wild strawberry native to southern and southeast Asia. It is similar in appearance to F. moupinensis. Its fruit are white to light pink, with flavour reminiscent of peach, and the fruit is of no commercial value. All strawberries have a base haploid count of 7 chromosomes. Fragaria nilgerrensis is diploid, having 2 pairs of these chromosomes for a total of 14 chromosomes.
Crocus sieberi (Sieber's Crocus) J.Gay 1831
plant species in the iridaceae family
Crocus sieberi, Sieber's crocus, also referred to as the Cretan crocus or snow crocus (as is Crocus chrysanthus), is a plant of the genus Crocus in the family Iridaceae. A small, early blooming crocus, it easily naturalises, and is marked by a brilliant orange which is mostly confined to the stamens and style, fading through the bottom third of the tepal. It grows wild generally in the Balkans: Greece, especially in the island of Crete, Bulgaria, Albania and North Macedonia. There are four subtypes: sieberi (Crete), atticus (Attica area around Athens), nivalis and sublimis. Its cultivars are
Carex colchica J.Gay 1838
perennial plant species in the cyperaceae family
Carex colchica is a species of perennial plant in the family Cyperaceae.
Asphodelus cerasiferus (Asphodelus Cerasifer (unwarranted Correction)) J.Gay 1857
plant species in the asphodelaceae family
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Adenocarpus complicatus (L.) J.Gay 1836
plant species in the fabaceae family
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Endressia J.Gay 1832
plant genus in the apiaceae family
Endressia is a genus of flowering plants belonging to the family Apiaceae. Its native range is eastern Pyrenees in France, to northern Spain. Known species: Endressia castellana Coincy Endressia pyrenaica (J.Gay ex DC.) J.Gay The genus name of Endressia is in honour of Philipp Anton Christoph Endress (1806–1831), a German botanist and plant collector, and it was published in Ann. Sci. Nat. (published in Paris) Vol.26 on page 223 in 1832.
Oxytropis lapponica (Wahlenb.) J.Gay 1827
perennial plant species in the fabaceae family
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Herniaria polygama J.Gay 1847
annual plant species in the caryophyllaceae family
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Eryngium viviparum J.Gay 1848
endangered and perennial plant species in the apiaceae family
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Crocus boryi J.Gay 1831
plant species in the iridaceae family
Crocus boryi is a species of flowering plant in the genus Crocus of the family Iridaceae. It is a cormous perennial native to western and southern Greece to Kriti (Crete).
Carex pachystylis (Thick-stem Sedge) J.Gay 1838
perennial plant species in the cyperaceae family
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Thomasia (Thomasias) J.Gay 1821
plant genus in the malvaceae family
Thomasia is a genus of thirty-one species of flowering plants in the family Malvaceae. Plants in this genus are small shrubs that are endemic to the south-west of Western Australia, apart from T. petalocalyx that is native to Victoria and South Australia. The leaves are simple with leaf-like stipules at the base of the petiole, the flowers bisexual with five papery, petal-like sepals, usually five petals and five stamens opposite the petals. The fruit is a capsule covered with star-like hairs.
Crocus tournefortii (Tournefort's Crocus) J.Gay 1831
plant species in the iridaceae family
Crocus tournefortii, the Tournefort crocus, is a species of flowering plant in the iris family Iridaceae. It is from South Greece and Northern Crete. Growing to 10 cm (3.9 in), it is a cormous perennial with narrow sword-shaped leaves and pale lilac flowers appearing in autumn and winter. It has gained the Royal Horticultural Society's Award of Garden Merit.
Crocus olivieri J.Gay 1831
plant species in the iridaceae family
Crocus olivieri is a species of flowering plant in the family Iridaceae. It is from the Balkans, Albania, Yugoslavia and Bulgaria to Greece and Turkey. The species is found growing in deciduous scrub and on open hillsides, or in pine woods from sea level to 1500 meters; flowering occurs in January till March.
Crocus fleischeri (C. Fleischeri) J.Gay 1827
plant species in the iridaceae family
Crocus fleischeri is a species of flowering plant in the genus Crocus of the family Iridaceae. It is a cormous perennial with a native range from the eastern Aegean Islands to western and south western Turkey.
Crocus cambessedesii (Balearic Crocus) J.Gay 1831
plant species in the iridaceae family
Crocus cambessedesii is a species of flowering plant in the genus Crocus of the family Iridaceae. It is a cormous perennial native to Baleares (Majorca, Minorca).
Cota altissima (Southern Chamomile) (L.) J.Gay 1855
annual plant species in the asteraceae family
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Rogeria (Djirries) J.Gay 1826
plant genus in the pedaliaceae family
Rogeria is a genus of plants in the Pedaliaceae family consisting of several species, with a native range extending from the island of Cape Verde to Eritrea, Namibia to the Cape Provinces (of South Africa). It is found in the countries of Angola, Burkina Faso, Cameroon, Cape Verde, Chad, Eritrea, Mali, Mauritania, Namibia, Niger, Nigeria, Senegal, Sudan and South Africa. It was also thought to be found in Brazil as well as Africa, but this seems to be a mix-up with another shrub species. Some species such as Rogeria longiflora are medicinal plants.
Guichenotia J.Gay 1821
plant genus in the malvaceae family
Guichenotia is a genus of 17 species of flowering plants in the family Malvaceae that is endemic to the south west of Western Australia. Plants in the genus Guichenotia are shrubs with simple, linear to oblong leaves with leaf-like stipules at the base of the petiole, the flowers bisexual with three bracteoles at the base of the sepals, and five petal-like sepals, the petals sometimes absent. The fruit is a capsule usually containing 15 seeds. The genus was first formally described in 1821 by Jaques Étienne Gay in Mémoires du Muséum d'Histoire Naturelle. The first species Gay described was
Euphorbia forskaolii J.Gay 1847
plant species in the euphorbiaceae family
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Anthemis chrysantha J.Gay 1848
annual plant species in the asteraceae family
Anthemis chrysantha (known in Spanish as manzanilla de Escombreras or "Escombreras chamomile") is an Ibero-North African annual asteraceae endemism present in a few Cartagenan and Algerian islets and coastal locations. Researchers have observed enough differences between the Spanish and Algerian populations so as to conclude that they are separate subspecies. The plant was described by Jacques Etienne Gay.
Rhodalsine J.Gay 1845
plant genus in the caryophyllaceae family
Rhodalsine geniculata is a species of flowering plant belonging to the family Caryophyllaceae. It is the sole species in genus Rhodalsine. Its native range is the Canary Islands, the Mediterranean Basin (northern Africa, Iberia, Italy, Greece, and Cyprus) and northern Somalia.
Lathyrus filiformis (Bauhin’s Vetchling) (Lam.) J.Gay 1857
perennial plant species in the fabaceae family
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