Passiflora baraquiniana Lemaire

Svoboda, Harlan T., Macdougal, John M. & Ballard, Harvey E., 2016, Typifications and nomenclatural notes in Passiflora section Dysosmia (Passifloraceae), Phytotaxa 288 (2), pp. 101-119 : 102

2. Passiflora baraquiniana Lemaire (1861: pl. 276)

≡ Passiflora foetida Linnaeus var. hirsuta Masters (1871: 631) .

Lectotype (here designated):—Illustration from Lemaire, Ill. Hort. 8, pl. 276. 1861 ( Fig. 1 ).

Notes: —The original illustration of this species ( Fig. 1 ) shows a plant that is clearly in the Dysosmia group, but is unique in its leaf morphology. Lemaire (1861) indicated that this plate was based on a specimen collected in the “forêts du territoire des Amazones,” by M. Baraquin, for whom he named the species. Such a specimen, however, has not been found in any of the major herbaria worldwide. Because Lemaire worked mainly with living plants, the location of his collections and types, if any, are unknown (Stafleu & Cowan 1979). Lemaire’s (1861) plate number 276 is here chosen as the lectotype as it is the only known original material. Although an epitype was sought to help with the interpretation of this name, no suitable herbarium specimen has yet been found.

The currently accepted name of this taxon, P. foetida var. hirsuta , has had a tumultuous nomenclatural past and often times not even been associated with P. baraquiniana . Masters (1871: 631), however, made a direct reference to P. baraquiniana as the only synonym. In the same publication, he also published the name P. suberosa Linnaeus var. hirsuta (Linnaeus) Masters (1871: 630) with P. hirsuta Linnaeus listed as one of several synonyms and apparent basionym for his new name. The following year, in the Flora Brasiliensis, Masters (1872: 583) also listed P. hirsuta as a synonym of P. foetida var. hirsuta , while still retaining it as the basionym of P. suberosa var. hirsuta (Masters 1872: 579; Porter-Utley 2014: 93).

Linnaeus’ (1753) description of P. hirsuta is a mix of polynomials and cited illustrations that depict passionflowers from two very different sections of the genus: the apetalous section Cieca Medikus ( P. suberosa ) and section Dysosmia ( P. foetida ). Thus, Masters cited P. hirsuta Linnaeus [pro parte] under both species and sections in 1872. While it is clear in the 1871 publication that Masters intended for P. hirsuta to be the basionym of the new combination P. suberosa var. hirsuta , his Passiflora foetida var. hirsuta is validly published there by citing a previously validly published description ( P. baraquiniana ). Because of this confusion, the author of this variety of P. foetida is often seen as “(Linnaeus) Masters”, but is to be cited correctly as simply “Masters.” The confusion surrounding P. hirsuta Linnaeus has also been reduced by the recent lectotypification of the name on an illustration clearly representing a species from section Cieca in the P. suberosa complex ( Porter-Utley 2014: 86).

Figures

FIGURE 1. Designated lectotype of Passiflora baraquiniana. Image provided by the Peter H. Raven Library, Missouri Botanical Garden.