Gouda 2023b (Article) Guzmania, Peru
Guzmania bismarckii Rauh vs. Guzmania lindenii (André) Mez – Part II a new species and variety
Author(s):—E.J. Gouda
Publication:—Journal of the Bromeliad Society 72(4): 155-164. (2023)
Abstract:—More study was needed to understand the confusion between Guzmania lindenii (André) Mez (1896) and Guzmania bismarckii Rauh (1984 because the latter was considered a synonym of G. lindenii in the JBS 69(3) on page 122 (Gouda 2020). Rauh also described Guzmania lindenii var. concolor (1983) which was not considered in the former article and as a follow up I requested the type material of this variety for study in Utrecht. For years two different large variegated species have been known as Guzmania lindenii (figures 6-8) and G. bismarckii (figures 1-5), but now that the latter name is considered a synonym of the first, what should be the name of the second clearly different species and what about the variety of G. lindenii described by Rauh? It has become clear that what Rauh thought to be G. lindenii and the variety he described are clearly not G. lindenii, and both are from a different location in Peru. While G. lindenii is known from northern Peru (San Martin), this variety is from central Peru (Pasco/Junin). This throws light on why Guzmania bismarckii was described by Rauh as a different species and the ongoing confusion, which will be resolved here. A new species is described and illustrated, and the plant Rauh described as Guzmania lindenii var. concolor, which is a variety of this new species with concolorous green leaves but also other differences, will be transferred to variety level of the newly described species.
Published names (2):Guzmania vonbismarckii
Guzmania vonbismarckii var. concolor
Taxonomy:—Guzmania vonbismarckii var. concolor A variety with concolorous green leaves and less branched primary branches with longer spikes. Primary bracts about equaling to about half as long as the stipes of the primary branches; Primary branches mostly simple or with one smaller secondary branch, 11-20 cm long, long stipitate; Stipes of the primary branches 3-6.5 cm long; bearing 1(-2) sterile bracts; Spikes fertile part (6.5-)7.5-13.5(-18.5) cm long, ca. 2 cm wide (excluding the petals); Flowers 2.2-2.7 cm long. (p.163).