Galium longipedunculatum (Mariath&Ehrendorfer)Mariath&K.De Toni, 2015

De Toni, Karen L. G. & Mariath, Jorge E. A., 2015, New combinations for two species of Galium (Rubiaceae) from southern Brazil, Phytotaxa 218 (3), pp. 295-298 : 296

2. Galium longipedunculatum (Mariath&Ehrendorfer)Mariath&K.De Toni , comb.nov.

Relbunium longipedunculatum Mariath & Ehrendorfer (1977:184) .

Type: — BRAZIL. Rio Grande do Sul: Cambará do Sul, Itaimbezinho , 3 December 1971, J.C. Lindeman, F.M. Lindeman, A.M. Girardi & M.L. Porto (holotype ICN 9332 ! , isotype U 6267 ).

Additional selected specimens:— BRAZIL. Rio Grande do Sul: Bom Jesus, Serra da Rocinha , 18 January 1950, B. Rambo 45364 ( PACA). Cambará do Sul, 26 July 1975, J. Waechter ( ICN 29115 ) ; Itaimbezinho , 18 December 1950, B. Rambo 49357 ( PACA) ; Jaquirana, 6 April 2002, K. De Toni ( RB 444175 ) .

Both species are restricted to mountain top grasslands (Campos de Cima de Serra), a physiographic region located within the states of Rio Grande do Sul and Santa Catarina (above 800 m). These species grow in rocky grasslands (Campos Rupestres) or rocky outcrops. Galium longipedunculatum is also found on basalt cliffs located within the Aparados da Serra and Serra Geral National Parks ( Porto et al. 1977).