Raman s 1990

• Authors: Raman s
• Title: The trichomes on the corolla of the scrophulariaceae v. tribe Antirrhineae chavannes
• Location: Beitraege zur biologie der pflanzen, 64 (3). 1990. 357-376.
• Abstract: the tribe Antirrhineae were distinguishable by the distributional pattern of hairs on the inner surface of the corolla, especially that occurring on the lower lip palate and the occurrence of two parallel running stripes of hairs on the lower (anterior) surface of the corolla tube as in Antirrhinum, linaria, chaenorrhinum and maurandya. the two very closely resembling species cymbalaria muralis and cymbalaria pallida could be separated from one another by the occurrence of two parallel running stripes of hairs that extended up to the end of the spur in cymbalaria pallida. on the analysis of the forms of hairs the following conclusions were arrived at: (a) on the inner surface of the corolla usually unicellular hairs are present, and also drumstick like hairs - whichform the characteristic feature for the family scrophulariaceae, since these were not observed in the neighbouring families raman (1968). (b) on the outer surface of the corolla on the one hand only glandular trichomes were met with as in misopates orontium, maurandya barclaiana and the linaria species, on the other hand both glandular as well as uniseriate simple trichomes were observed in the genera Antirrhinum and chaenorrhinum. presence of membrane structures on the glandular trichomes form the specific character for maurandya barclaiana.