Deguelia chrysophylla (Kleinhoonte) R.A. Camargo & A.M.G. Azevedo, 2018

Camargo, Rodrigo A. & Tozzi, Ana Maria G. A., 2018, New Combinations in Deguelia (Leguminosae, Papilionioideae) for the Guiana Shield, Phytotaxa 356 (4), pp. 285-290 : 286-287

Deguelia chrysophylla (Kleinhoonte) R.A. Camargo & A.M.G. Azevedo , comb. nov.

Basionym:— Lonchocarpus chrysophyllus Kleinhoonte in Pulle (1933: 174). Lectotype (designated here): — SURINAM. Prope Paramaribo, 21.5 km ab via ferrea in directione occidentale, 11 March 1924, Boschwezen Suriname ( Forestry Bureau of Suriname ) 6416 ( U [digital image!]; isolectotypes: K000082330 !, K000478107 !, NY00023387 [digital image!], NY00023363 [digital image!], US 00002675 [digital image!]).

Few specimens have been examined for this species because it has been scarcely collected. It has a peculiar morphology and can be distinguished from other species by its leaflets, which resemble those of Deguelia rufescens [= Lonchocarpus rufescens Benth. (1839: 432) ] in shape (which are usually narrower than in other species), suggesting morphological similarities between these species, as noticed by Krukoff and Smith (1937) and followed by Amshoff (1939). Its flowers also possess a distinct calyx (all the teeth are subequal and half of the size of the tube, the vexillary teeth almost totally united, with a round apex, rather than obtuse as presented in D. rufescens ), petals (particularly the obovate wings, rather than elliptical, and the keel petals which have an acute apex rather than obtuse) and a distinct oblong fruit ( Tab. 1). Even though Kleinhoonte (in Pulle, 1933) cited only one collection in the protologue, he did not indicate the herbarium of deposit. Since there are duplicates of Boschwezen Suriname (Forestry Bureau of Suriname) 6416 in different herbaria, we designated here the specimen at U as the lectotype.

Distribution and habitat: —This species occurs in Surinam and Guiana ( Fig. 1 ). It is also cited from French Guiana ( Sousa 1997; DeFilipps et al. 2004). However, we did not find specimens from this country in herbaria collection, and both Sousa (1997) and DeFilipps et al. (2004) did not provide vouchers for their species lists. Lewis & Acevedo-Rodrígues (2012) cite Lonchocarpus chrysophyllus Kleinhoonte in Pulle (1933: 174) as exotic for Puerto Rico.

Vernacular names: —Black-haiari, black-aishal, nivree, nivree-male in Creole; hayari, wakuru-kuda, wakorokoda in Arawak dialect; maneku, ma-neku in Boni dialect; inyeku in Galibi dialect; aya in Patamona dialect; ikun, ikunaxine in Palikur dialect; hali-hali in Wayana dialect; imeku in Wayapi dialect ( Krukoff & Smith 1937; DeFilipps et al. 2004).

Representative Specimens Examined: — GUIANA. Wauna , Agr. Substa., March, E. Martyn 436 ( K) ; Kabrora , Moruca River, North-West District, taken from the forest cultivated in a house yard, 2 October 1997, T. Andel et al. 1912 ( U) .

Figures

FIGURE 1. Distribution map for the endemic species of the Guiana Shield (and adjacent areas of Venezuela) treated here.