Holothrix orthoceras00, Maria Elizabeth Holland, 1863

Holothrix orthoceras (harv. ) rchb. F. [as tryphia orthoceras harv. ] - william henry harvey - thesaurus capensis, or illustrations of south african flora, vol. 2: t. 105 (1863) [w. H. Harvey] (1811-1866). Date: 1863.