A re‐examination of Sanango racemosum. 1. Morphology and distribution

Abstract

Summary Norman, E. M.: A re‐examination of Sanango racemosum. 1. Morphology and distribution. – Taxon 43: 591‐600. 1994. – ISSN 0040‐0262. The history of the genus Sanango and its classification are reviewed. A detailed description is given of its gross morphology, trichome and seed surface micromorphology. Data on germination, phenology and distribution in Ecuador and Peru are presented. The author concludes that characteristics of the inflorescence, trichomes, fruit morphology and seed surface anatomy as well as seed development are consistent with the inclusion of Sanango in the Gesneriaceae.

Embryological studies in Sanango racemosum (Loganiaceae s.l.)

“…The studies of Sanango racemosum (Ruiz & Pav.) Barringer by Norman (1994) Dickison (1994) and Fig. 27.…”

“…The monotypic genus Sunango has a restricted distribution in South America having been found in Peru (Bunting & Duke 1961) and Ecuador (Norman 1994). It is classed in the tribe Buddlejeae of the Loganiaceae when the family is considered in the broad sense (Bunting & Duke 1961;Leeuwenberg 1980) and in the Buddlejaceae when the tribe is given family status in the Scrophulariales (Cronquist 198 1).…”

“…It is classed in the tribe Buddlejeae of the Loganiaceae when the family is considered in the broad sense (Bunting & Duke 1961;Leeuwenberg 1980) and in the Buddlejaceae when the tribe is given family status in the Scrophulariales (Cronquist 198 1). Sanungo has also been included in Scrophulariaceae (Takhtajan 1966) and more recentlyafter studies on anatomy (Dickison 1994), morphology (Norman 1994) and chemotaxonomy (Jensen 1994) in Gesneriaceae (Wiehler 1994).…”

Familial placement of Cyrtandromoea, Titanotrichum and Sanango, three problematic genera of the Lamiales

“…Recent studies on floral anatomy, epidermal anatomy, and chemical constituents of Sanango (Norman, 1994;Dickison, 1994;Jensen, 1994) prompted Wiehler (1994) to move Sanango to the Gesneriaceae, specifically to the tribe Gesnerieae. Wiehler (1994) used several character states possessed by Sanango that are otherwise known in the families it had been placed in, Loganiaceae, Scrophulariaceae, and Buddlejaceae.…”

“…Recent investigations of floral and nodal anatomy (Dickison, 1994;Norman, 1994) and chemical constituents (Jensen, 1994) caused Wiehler (1994) to place Sanango in the Gesneriaceae, tribe Gesnerieae. Recent investigations of floral and nodal anatomy (Dickison, 1994;Norman, 1994) and chemical constituents (Jensen, 1994) caused Wiehler (1994) to place Sanango in the Gesneriaceae, tribe Gesnerieae.…”