Which genus has more species, Echium or Ptilotus?
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Echium Echium is a genus of 60 species of flowering plant in the family Boraginaceae.
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Ptilotus Ptilotus R.Br. is a genus of approximately 110 species of annual and perennial herbs and shrubs in the family Amaranthaceae. All species are native to mainland Australia, although one species, "Ptilotus spathulatus" (R.Br.) Poir., also occurs in Tasmania and another, "Ptilotus conicus" R.Br., in Malesia on the islands of Flores and Timor. Most of the diversity is in Western Australia, particularly in the Pilbara. Common names for species in this genus include mulla mulla, foxtails, pussy tails and lamb's tails. The genus was first formally described by botanist Robert Brown in "Prodromus Florae Novae Hollandiae" in 1810. In family-level phylogenetic studies, "Ptilotus" has been placed within a clade informally known as the 'aervoids'. It has been resolved as monophyletic and is closely related to "Aerva" Forssk. An interactive key to the species of "Ptilotus" is available at KeyBase.
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Echium italicum Echium italicum, the Italian viper's bugloss, Lady Campbell weed, or pale bugloss, is a species of plant from Boraginaceae family, that can be found in the Mediterranean Basin (especially in Italy, hence the name 'italicum') and, as an introduced species in the United States (for example in the state of Maryland).
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Echinopyge Echinopyge is a trilobite in the order Phacopida, that existed during the lower Devonian in what is now Turkey. It was described by Haas in 1968, and the type species is "Echinopyge cathamma". The type locality was the Kurtdogmus Formation.
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Ptilotus nobilis Ptilotus nobilis, commonly known as yellow tails, regal foxtail or broad foxtail is a perennial herb of the family Amaranthaceae. It is found across dry interior areas of mainland Australia.
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Ptiloedaspis Ptiloedaspis is a genus of tephritid or fruit flies in the family Tephritidae.
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Helichrysum The genus Helichrysum consists of an estimated 600 species, in the sunflower family (Asteraceae). The type species is "Helichrysum orientale". The name is derived from the Greek words ἑλίσσω ("helisso" , to turn around) and χρῡσός ("chrysos" , gold).
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Ectemnius Ectemnius is a genus of wasps in the family Crabronidae. 188 species are known.
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Erythroxylum Erythroxylum ("Erythroxylon") is a genus of tropical flowering plants in the family Erythroxylaceae. Many of the approximately 200 species contain the drug cocaine; "Erythroxylum coca", a native of South America, is the main commercial source of cocaine and of the mild stimulant coca tea. Another species, "Erythroxylum vacciniifolium" (also known as Catuaba) is used as an aphrodisiac in Brazilian drinks and herbal medicine.
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Eclipta (beetle) Eclipta is a genus of beetles in the family Cerambycidae, containing the following species:
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Echium stenosiphon Echium stenosiphon is a species of flowers that belong to the "Boraginaceae" family. The species are endemic in Cape Verde. Its last form of the scientific name means the narrow siphon.
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Eidolon (genus) Eidolon is a genus of megabats in the family Pteropodidae. It contains two species:
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Ophioderma (echinoderm) Ophioderma is a genus of brittle stars in the family Ophiodermatiidae.
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Pterygotus Pterygotus is a genus of marine arthropod within the extinct order eurypterida (or "Sea Scorpion"), and includes some of the largest species of this group.
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Melilotus Melilotus, known as melilot, sweet clover, and kumoniga (from the Cumans), is a genus in the family Fabaceae (the same family that also includes the "Trifolium" clovers). Members are known as common grassland plants and as weeds of cultivated ground. Originally from Europe and Asia, it is now found worldwide.
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Ectrosia Ectrosia is a genus of Asian, Australian, and Pacific Island plants in the grass family.
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Pterostylus Pterostylus is a genus of fly in the family Dolichopodidae.
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Echinodorus Echinodorus (burhead or Amazon sword plant) is a genus of plants in the family Alismataceae and distributed in the Western Hemisphere from the central United States to Argentina. Its scientific name is derived from Ancient Greek "echius" – rough husk, and "doros" – leathern bottle, alluding to ovaries, which in some species are armed with persistent styles, forming prickly head of fruit. Some of the species are commonly cultivated in artificial aquatic habitats.
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Ecthymia Ecthymia is a genus of moths of the Noctuidae family.
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Corophium Corophium is a genus of the amphipod family Corophiidae. Formerly a much larger genus, many species have been transferred to segregate genera such as "Monocorophium" and "Crassicorophium".
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Ecteinascidia Ecteinascidia is a sea squirt genus in the family Perophoridae.
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Schizochytrium Schizochytrium is a genus of unicellular eukaryotes in the family Thraustochytriaceae, which are found in coastal marine habitats. They are assigned to the Stramenopiles (heterokonts), a group which also contains kelp and various microalgae.