Lindernia calemeriana, Sivarajan, 1983

Prasad, Managvayal Govindan & Sunojkumar, Purayidathkandy, 2018, Notes on the identity of two Indian species of Lindernia sensu stricto (Linderniaceae), and lectotypification of the name L. srilankana, Phytotaxa 371 (1), pp. 42-48 : 42

Identity of Lindernia calemeriana

Lindernia calemeriana Sivarajan (1983: 351) , was first described by the author based on his collections from the sandy sea coast at Point Calemere, a south eastern coastal place of India. In the protologue, it was stated that the species appears closely similar to L. minima ( Bentham, 1846: 420) Mukerjee (1945: 132) but differs in its larger, ovate-acute, prominently serrate, pinnately veined leaves and prominently spurred staminodes. During the present investigation, we have collected L. calemeriana from its type locality and also from some other places. Subsequent studies have shown that morphological characters of L. calemeriana exactly match with another Asian species, Lindernia srilankana described by Cramer and Philcox (1974: 35) from Sri Lanka. After a detailed analysis of morphological characters of both the species along with protologue and type specimen we confirmed that the former is conspecific with the later. We could not find any considerable character differences between these two species ( Table 1) and hence propose that L. calemeriana Sivar. should be treated as a new synonym of L. srilankana L.H. Cramer & Philcox.