Question: Ornithogalum and Limonium, are a genus of which type?

Context paragraphs:
Ornithogalum narbonense: Ornithogalum narbonense, common names Narbonne star-of-Bethlehem, pyramidal star-of-Bethlehem and southern star-of-Bethlehem, is a herbaceous perennial flowering plant with underground bulbs, belonging to the genus Ornithogalum of the Asparagaceae family.  The Latin name "Ornithogalum" of the Genus, meaning "bird's milk", derives from the Greek, while the species name "narbonense" refers to the French town of Narbonne.

Galtonia: Galtonia is a genus of plants in the family Asparagaceae, subfamily Scilloideae.  Native to Southern Africa, the genus is named after Sir Francis Galton.  According to some authorities it has been subsumed into "Ornithogalum" as a subgenus, while others prefer to keep it as a separate genus.

Limonium limbatum: Limonium limbatum, common names trans-pecos sea-lavender or desert sea-lavender, is a plant species native to the southwestern United States (Arizona, New Mexico, Texas and Oklahoma) and also in the Mexican State of Coahuila.  Most of the 300 species of the genus are found on seashores and in marine salt marshes, but "L. limbatum" grows on the shores of salt lakes and in alkaline depressions in desert areas, at elevations of 400-1800 m.

Ornithogalum: Ornithogalum is a genus of perennial plants mostly native to southern Europe and southern Africa belonging to the family Asparagaceae.  Some species are native to other areas such as the Caucasus.  Growing from a bulb, species have linear basal leaves and a slender stalk, up to 30 cm tall, bearing clusters of typically white star-shaped flowers, often striped with green.  The common name of the genus, Star-of-Bethlehem, is based on its star-shaped flowers, after the Star of Bethlehem that appeared in the biblical account of the birth of Jesus.  The number of species has varied considerably, depending on authority, from 50 to 300.

List of Ornithogalum species: The genus Ornithogalum contains about 180 species as of May 2012 .

Limonium brunneri: Limonium brunneri is a species of flowers that belong to the "Plumbaginaceae" family.  The species are endemic in Cape Verde.  The genus was named by Carl Ernst Otto Kunze in 1891.

Limonium: Limonium is a genus of 120 flowering plant species.  Members are also known as sea-lavender, statice, caspia or marsh-rosemary.  Despite their common names, species are not related to the lavenders or to rosemary.  They are instead in Plumbaginaceae, the plumbago or leadwort family.

Limonium jovibarba: Limonium jovibarba is a species of flowers that belong to the "Plumbaginaceae" family.  The species are endemic in Cape Verde.  The genus was named by Carl Ernst Otto Kunze in 1891.

Herbihabitans rhizosphaerae: Herbihabitans rhizosphaerae is a bacterium from the genus of "Herbihabitans" which has been isolated from rhizosphere soil from the plant Limonium sinense in Xinjiang in China.

Name-bearing type: Under the "International Code of Zoological Nomenclature" ("Code"), the name-bearing type is the biological type that determines the application of a name.  Each taxon regulated by the "Code" at least potentially has a name-bearing type.  The name-bearing type can be either a type genus (family group), type species (genus group), or one or more type specimens (species group).  For example, the name "Mabuya maculata" (Gray, 1839) has often been used for the Noronha skink (currently "Trachylepis atlantica"), but because the name-bearing type of the former, a lizard preserved in the Muséum national d'histoire naturelle in Paris, does not represent the same species as the Noronha skink, the name "maculata" cannot be used for the latter.

Supporting paragraphs: Ornithogalum Limonium
Answer: plants