New Zealand Journal of Botany abstracts
Species novae graminum Novae-Zelandiae III*. Two diploid species of
Rytidosperma (Danthonieae: Danthonioideae)
B. P. J. Molloy
Research Associate
Landcare Research
P.O. Box 69
Lincoln 8152, New Zealand
H. E. Connor
Department of Geography
University of Canterbury
Private Bag 4800
Christchurch, New Zealand
Abstract Two diploid species of Rytidosperma,
R. horrens and R. telmaticum, are described from central
South Island, the latter as a segregate from R. pumilum. The
preferred habitat of R. telmaticum is the
margins of kettle-holes, drainage ponds, and other depressions in
glacial deposits as one of the dense turf species there; it occurs more
sparingly in seral communities on some montane riverbeds, and in one
case on sparsely vegetated schist terrain. Rytidosperma horrens
is known from only one locality where it grows on the margins of
sloping wet flushes. Both species, and their close associates, occupy
relatively fertile sites.
Keywords Rytidosperma; R. horrens;
R. telmaticum; R. pumilum; new species;
Danthonieae; Danthonioideae; Gramineae; grass; ecology; conservation;
New Zealand
*For “Species novae graminum Novae-Zelandiae II” see Connor, H.E.
& Lloyd, K.M. on Chionochloa
nivifera, New Zealand Journal of Botany 42: 531–536 (2004)
B05002; Received 5 January 2005; accepted 23 June 2005; Online
publication date 8 September 2005
New Zealand Journal of Botany, 2005, Vol. 43: 721–734
0028–825X/05/4303–0721 © The Royal Society of New Zealand 2005
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