Question: Which genus has more species, Linaria or Stangeria?

Context paragraphs:
Nuttallanthus: Nuttallanthus is a genus of four species of herbaceous annuals and perennials that was traditionally placed in the foxglove family Scrophulariaceae.  Due to new genetic research, it has now been placed in the vastly expanded family Plantaginaceae.  Three species of "Nuttallanthus" are native to North America and one to South America.  "Nuttallanthus" was until the 1980s included in a wider circumscription of the genus "Linaria", a genus now considered restricted to the Old World.

Stangeriaceae: Stangeriaceae is the smallest family of cycads, both in number of living and fossil species.  The family contains only two living genera, "Stangeria" and "Bowenia", though the latter genus has been recommended for placement in a separate family by itself.

Stangeria: Stangeria eriopus is a cycad endemic to southern Africa It is the sole species in the genus Stangeria, most closely related to the Australian genus "Bowenia", with which it forms the family Stangeriaceae.  IUCN Red List Category & Criteria: Vulnerable, mainly due to habitat loss and over-exploiting for traditional medicine.  It is listed under CITES Appendix I / EU Annex A, and CITES prohibits international trade in specimens of this species except when the purpose of the import is not commercial, for instance for scientific research.

Antirrhineae: The Antirrhineae are one of the 12 tribes of the Plantaginaceae family.  It contains the toadflax relatives, such as snapdragons.  They are probably most closely related to the turtlehead tribe (Cheloneae) and/or a large and badly resolved core group of their family including plants as diverse as water-starworts ("Callitriche"), foxgloves ("Digitalis"), and speedwell ("Veronica").  The Antirrhineae include about 30 genera with roughly 320 species, of which 150 are in genus "Linaria".  The type genus is "Antirrhinum" .

Linaria: Linaria is a genus of 150 species of herbaceous annuals and perennials and the largest genus in the Antirrhineae tribe of the plantain family Plantaginaceae.

Supporting paragraphs: Linaria Stangeria
Answer: Linaria