Negretia urens Blanco, 1837

Wiriadinata, H., Ohashi, H. & Adema, F., 2016, Notes on Malesian Fabaceae (Leguminosae-Papilionoideae) 16. The genus Mucuna, Blumea 61 (2), pp. 90-124 : 121

Negretia urens Blanco

Negretia urens Blanco (1837) 586; (1845) 409; (1879) 387, nom. illeg.

According to Fernandez-Villar (1880) this is Mucuna monosperma Roxb. ex Wight. However , this species does not occur in the Philippines. Merrill (1905a, 1906) identified it as M. imbricata DC. ex Baker. A species also absent from the Philippines. The specimen cited by Merrill as an example of Negretia urens (Merrill 3783) is according to Wilmot-Dear (1991b: 250) a mixed collection which is for the greater part M. diplax to which pods and seeds of M. platyplekta are added. Later Merrill (1910, 1918) changed the identification to M. nigricans (Lour.) Steud. This, however, is a confusing and misapplied name. The material once named M. nigricans belongs to at least five taxa ( Wilmot-Dear 1991c). In the Philippines two of these taxa are found: M. hainanense subsp. multilamellata and M. diplax (see Wilmot-Dear 1991a, b). However, it is not clear from Blanco’s description of the pods to which of these species his Negretia urens belongs. Merrill’s illustrative specimen of Negretia urens Blanco (Merrill sp. Blanc. 779) belongs to M. diplax .