15. Bombax marginatum f. rupestre Hassl. in Repert. Spec. Nov. Regni Veg. 8: 70. 1910.

Holotypus: PARAGUAY. Cordillera: “In rupestribus Cordillera de Altos ”, II.1898 -1899, Hassler, E. 6031 (G [G00094591]! [lf, fl]) . Isotypi: (G [G00077086]! [lf, fl], G [G00094589]! [lf, fl], G [G00094590]! [lf, fl], LIL [LIL000882] [image]! [fl], MICH [MICH1210020] [image]! [lf, fl], MO [MO309212]! [lf, fl], P [P00634474]! [lf], P [P00634475]! [fl], P [P06622935]! [lf], P [P06622 940]! [fl], S [S10-34541]! [lf, fl]) .

The present holotype, Hassler 6031, is also a syntype of B. marginatum f. arboreum .