Black, G. A. 1963. Advancing Frontiers Pl. Sci. 5: 55.
Santa Cruz; Portachuelo., Santa Cruz, Bolivia, South America - Neotropics
19 Apr 1916
Protologue cites collection number as "14598", apparently an error for 14958. Protologue cites holotype (and no isotype) at US; 2 sheets found at US, neither annotated by author as holotype. Holotype and isotype, or holotype mounted on 2 sheets?
Marked "sheet II" and with other US sheet (1297198) appears to be a single specimen mounted on 2 sheets, but this sheet annotated as "holotype" and other sheet annotated as "isotype" by Smith & Soreng.