Pergularia tomentosa Linnaeus , Systema Naturae , ed. 12, 2 : 191; Mantissa Plantarum : 53. 1767 Chapter 7: Linnaean Plant Names and their Types (part P) Jarvis, Charlie L. Linnaeus 1767 Magnoliopsida Apocynaceae Pergularia Plantae Gentianales Tracheophyta species tomentosa      Pergularia tomentosaLinnaeus,  Systema Naturae, ed. 12, 2: 191;  Mantissa Plantarum: 53. 1767.  "Habitat in Arabia. Forskahl."RCN: 1748.   Lectotype(Goyder in Kew Bull.61: 248. 2006):  Forsskal972(C).   Generitypeof  PergulariaLinnaeus(vide Brown in Bull. Misc. Inform. Kew1907: 324-325. 1907).   Note:Brown (in Bull. Misc. Inform. Kew1907: 323-325. 1907) argued that Linnaeus'generic description could not include either of the species included within the genus in 1767. The protologue of  P. tomentosaindicates that the plant came originally from "Arabia", via Forsskal, and was cultivated in Uppsala. However, sheet 306.2 (LINN) is from China, and Brown argues that it cannot be accepted as the basis of  P. tomentosa.Swarapanandan (in Taxon32: 468-469. 1983) provided a review of the confusion in the generic concept, but neither he nor Brown (his "I suspect that [308.6 LINN] may be the very specimen on which Linnaeus based ..."  Pergularia" is inadequate) provided a formal typification for"  P. tomentosa.This was subsequently done by Liede (in Asklepios51: 65. 1990) who designated  Forsskal269(C) as a neotype. However, it is from Egypt, and Goyder (in Kew Bull.61: 248-249. 2006) therefore rejected it in favour of  Forsskal972from Arabia, which he treats as the lectotype.