Hookeria subdepressa Besch. in J. Bot. (Morot) 5: 345. 1891 .

Ξ Callicostella subdepressa (Besch.) Broth. in Engl. & Prantl, Nat. Pflanzenfam. I(3): 937. 1907.

Type citation. – “Guarapi, 1881, Balansa 3689 ”.

Type specimens. – Syntypes: Paraguay: Guarapi, dans les forêts, 1881, Balansa 3689 (G [1885], G00042270; Herb. Barb.-Boiss., G00042271; Herb. Boiss., G00042272; Herb. DC. [1884], G00042269).

Type designation. – None found.

Comments. – Number 3689 was used by Müller (MÜLLER & STEPHANI, 1887: 57) as original material for the nomen nudum “ Hookeria paraguensis ”.