The Biosystematics of Scrophularia in Western North America

Multiple windows of colonization to Macaronesia by the dispersal-unspecialized Scrophularia since the Late Miocene

“…In particular, Scrophularia consists of about 270 species Devesa, 1993a) (200, cf. Mabberley, 2008), which have been subject to floristic and taxonomic studies in Western USA (e.g., Shaw, 1962), Europe (Richardson, 1972), Asia (e.g., China, Deyuan et al, 1998;Turkey, Lall and Mill, 1978;USSR, Gorshkova, 1955, among others), N Africa (e.g., Libya, Qaiser, 1982;Morocco, Ibn Tattou, 2007;Ortega-Olivencia and Devesa, 2002) and Macaronesia (Dalgaard, 1979).…”

Evolutionary Relationships in the Genus Scrophularia L.

“…This study, although based entirely on comparative morphological and phytogeographic relationships, is extremely valuable to the modern worker. Some of STIEFEJ.HAGEN'S views concerning the natural evolutionary relationships in the genus have been partly corroborated by niore recent cytotaxonomic and experimental taxonomic investigations (see CARLBOM, 1964;SHAW, 1962;VAARAMA and HIIRSALMI, 1967). STIEFELHAGEN believed that the major center of diversity and evolution of the genus was in the Himalayan region.…”

Chromosome numbers in six species of Scrophularia L. from cold desert regions of Lahaul-Spiti, H. P., India

“…However, the chromosome numbers of 2n=24 and 26 are reported in S. lucida L. which is some time confused with the S. decomposita Royle ex Benth. (Shaw 1962;Varrama and Hursalmi 1967;Grau 1982 andSnogerup 1955). …”