Plukenetia loretensis, Ule, Verh. Bot. Vereins Prov. Brandenburg

Cardinal-McTeague, Warren M. & Gillespie, Lynn J., 2020, A Revised Sectional Classification of Plukenetia L. (Euphorbiaceae, Acalyphoideae) with Four New Species from South America, Systematic Botany (Basel, Switzerland) 45 (3), pp. 507-536 : 523-525

12. PLUKENETIA LORETENSIS Ule, Verh. Bot. Vereins Prov. Brandenburg 50: 81. 1908.

Apodandra loretensis (Ule) Pax & K.Hoffm. in A.Engler (ed.), Pflanzenr. IV, 147, IX (Heft 68): 21. 1919.

TYPE: PERU. Iquitos, April 1903, E. Ule 6837 (holotype: B [destroyed]; lectotype designated here: L [accession 601470 , barcode L 0137704 ; image!] ; isolectotypes: F! [accession 767223 , barcode V0042476F ; fragment ex G] , G! [barcode G00441994 ] , HBG [barcode HBG-515850 ; image!] , MG [barcode MG006665 ; image!]).

Apodandra corniculata Cardiel, Revista Acad. Colomb. Ci. Exact. 18(71): 469. 1993. Type: Colombia. Caquetá, Sierra de Chiribiquete. Campamento Norte. Recorrido por el cauce casi seco de un arroyo al NE del campamento, [1.11667°, -72.83333°], 350–500 m, 13 December 1990 [mislabeled as 1991 on sheets], S. Castroviejo, J.M. Cardiel, G. Galeano & F. González 12042 (holotype: COL [accession 365413, barcode COL000002059 ; image!]; isotypes: COAH, COL [accession 365412, barcode COL000002060 ; image!], G [barcode G00434095; image!], MA [barcodes MA 509696, MA 509696-2; images!], US [accession 3303795, barcode 00433407; image!]).

Notes —See Gillespie (1993) for species discussion and Gillespie and Armbruster (1997) for species description. We report one new addition to the distributions given in Gillespie (1993) and Gillespie and Armbruster (1997): Pará, Brazil (Ramos 1105).

The holotype was destroyed at B so a new lectotype is designated from the isotype housed at L. This specimen has the most abundant and intact floral and vegetative material among the available isotypes.

Here, we treat Apodandra corniculata as a synonym of P.loretensis . Cardiel Sanz (1993) distinguished this species from P. loretensis on the basis of having leaf blades with 5–7 secondary veins and staminate flowers with 20–25 stamens; however, these characters are within the range of variation observed in P. loretensis ( Gillespie and Armbruster 1997; new observations). Additionally, the collection date on the type labels of A. corniculata are mislabeled as 1991, but the expedition is reported elsewhere on the label and in the manuscript as occurring in 1990 ( Cardiel Sanz 1993).