Hi
Lachnagrostis semiglabra as a name is referred to L. lyallii by Edgar (1995) which is present at Macraes E.D.
Coriaria lurida is harder to work with as elements of that name have been referred to C. pteriodoides, C. plumosa and C. kingiana by W. R. B. Oliver in 1942 (see reference). At Macraes the name will almost certainly refer to C. plumosa.
Cheers
Peter J. de Lange
References
Edgar, E. 1995: New Zealand species of Deyeuxia P.Beauv. and Lachnagrostis Trin. (Graminieae: Aveneae). New Zealand Journal of Botany 33: 1-33.
Oliver, W.R.B. 1942: The genus Coriaria in New Zealand. Records of the Dominion Museum, Wellington 1: 21-43.