Question: Which genus has more species, Echium or Ptilotus?

Context paragraphs:
Echium: Echium is a genus of 60 species of flowering plant in the family Boraginaceae.

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.

List of Ptilotus species: This is a list of the currently recognized species in the genus "Ptilotus".  All species are native to continental Australia, mostly in the arid regions, though one species also occurs in Tasmania and another in Malesia.

Ptilotus spathulatus: Ptilotus spathulatus(pussy tails) is a species of perennial herbs in the genus "Ptilotus," native to Western Australia, South Australia, Victoria, New South Wales and Tasmania.  It is the only species of "Ptilotus" that occurs in Tasmania.

Ptilotus rotundifolius: Ptilotus rotundifolius is a pink-flowered species of shrub in the genus "Ptilotus" (Amaranthaceae).  It is commonly known as "royal mulla mulla".  It is native to the Gascoyne, Murchison and Pilbara IBRA regions of Western Australia.

Supporting paragraphs: Echium Ptilotus
Answer: Ptilotus