mesothermn.adj.

1874 Nature 9 July 191/2 The third group [of plants in de Candolle's classification]..are named Mesotherms.

1875 J. G. Baker Elem. Lessons Bot. Geogr. 102 Geographical range of the mesotherms.

1935 Ecology 16 336 Many concepts of vegetation have been based upon the ‘most important’ factor. Among these are DeCandolle's (1874) concepts of megatherms, mesotherms, and microtherms based on temperature.

1960 N. Polunin Introd. Plant Geogr. x. 285 The great world vegetational zones..depend primarily on temperature, and we find it convenient to distinguish between megatherms (plants favouring warm habitats), microtherms (plants favouring cold habitats), and the intermediate mesotherms.

1998 Environmental Biol. of Fishes 53 447 Those with low thermal amplitudes, such as cold stenotherms, or relatively high short-term amplitudes, such as tropical mesotherms, were predicted to exhibit relationships that are either independent or negative functions of acclimation temperature.

1875 J. G. Baker Elem. Lessons Bot. Geogr. 51 Passing to Mesotherm types, the temperature needed for germination becomes gradually higher.

1930 Ecology 11 224 Morphological features exhibited by..dry or moist mesotherm subtropical and temperate vegetation.

1988 Proc. Royal Soc. Queensland 99 35 Drymophila moorei..and the Smilax spp. showed microtherm phenology, but D. caerulea, Dioscorea transversa and E. latifolius showed responses somewhat intermediate between microtherm and mesotherm.

1998 Austral. Syst. Bot. 11 401 This..occurred in a regionalised vegetation of mesotherm open-forests in which podocarps and araucarians were important.