Nidularium innocentii var. striatum (Bull) Wittmack[as Nidularium innocentii var. striatum (W Bull) Wittm.]

Observations: —William Bull (1828-1902) first introduced N innocentii var. striatum to horticulture as N. striatum in the 1888 catalogue of his Commercial establishment in Chelsea, England. He included a lovely plate of the taxon that became its lectotype. Wittmack (1888), referring to William Bull's catalogue, mentioned that Jacob Makoy from Liege, Belgium, owned a similar plant called N. makoyanum and concluded that the correct name should be N. innocentii var. striatum.
Baker (1889) incorrectly listed N. makoyanum as a synonym of N. neglectum while Pynaert (1891) reproduced William Bull's plate and retrieved the name N. striatum, also mentioning the existence of N. amazonicum var. tricolor. In 1894, Emile Rodigas presented a beautiful colored plate of N. innocentii var. luteo, but Mez (1896, 1935) insisted on allotting species status to this taxon under the name N. striatum.
Smith (1955) and Smith & Downs (1979) again demoted this widely cultivated taxon to variety status. However, in 1981 Raulino Reitz described variety bauense, of wild origin, which is no different from variety striatum. Nidularium innocentii var. striatum also had several invalid names in horticulture such as N. aureo-striatum and N. innocentii var. variegata.
The decision to maintain variety striatum as a valid taxon took into consideration the same arguments presented in relation to the previous variety. In this case, variety striatum has been cultivated for over 100 years and is one of the most popular taxa of this genus.