Baill., ?Bull. Mens. Soc. Linn. Paris 83: 662. 1887.?, 1887.

Baill., ?Hist. Pl. (Baillon) 9: 357. 1888?, 1888.

Baill., ?Hist. Pl. (Baillon) 9: 338. 1888 [Feb-Mar 1888] ;  Wettst. in Engl. & Prantl, Naturl. Pflanzenfam. iv.3b (1891) 38?, 1888.

Baill. and Baill., ?Hist. Pl. (Baillon)  9: 338.?, 1888.

Baill., Baill.,, and Raf., ?Autik. Bot. 108. 1840; Pennell in Bull. Torrey Bot. Club, 1921, 48: 94.?.