Botanical Survey of India | Flora of India

JSP Page

Herbs or subshrubs, strongly scented. Leaves mostly opposite, simple, compound or pinnatifid, dotted or glandular. Heads radiate or discoid, few to many flowered. Involucre campanulate, fusiform or cylindric; involucra! bracts in 1-3-series, often fused, punctute. Receptacle flat or convex, naked. Florets yellow, white or orange red, all fertile. Anthers cordate at base, appendaged. Style branches elongate, smooth or papillate, appendaged or not. Achenes slender, cylindric, clavate or angled; carpopodium short. Pappus of scales, awns or bristles.

The tribe Tageteae includes ca 240 New World species belonging to 16 - 18 genera. The geographic centre of diversity for the tribe is in the xeric highlands of Mexico; 2 genera and 4 species in India.

The group has commonly been treated as a subtribe in Helenieae. The relationship of Tageteae to other Compositae is obscure, although some primitive members of Tageteae have achene types similar to those of Senecioneae. Bentham & Hooker (1873) included this taxon under the tribe Helenioideae subtribe Tagetineae (or Pectidinae).

Literature. BENTHAM, G. (1873). Notes on the classification, history and geographical distribution of Compositae. J. Linn. Soc. Bot. 13: 335 - 577. BENTHAM, G. & J.D. HOOKER (1873). Compositae: Genera plantarum 2: 163 - 533. KEIL, DAVID, J. (1975). Tageteae in Flora Panama. Ann. Miss. Bot. Gard. 62: 1220-1241.



KEY TO THE GENERA


1a. Leaflets filiform, eglandular; involucral bracts connate at base only 1. Dyssodia
b. Leaflets lanceolate, having glands near the margins; involucral bracts connate near to apex 2. Tagetes


JSP Page
  • Search