PONTEDERIACEAE. 



EICHHORNIA Kunth. 



Eichhornia natans (Beauv.) Solms Monogr. Phanerog. IV. p 526. 

 Pontederia natans Beatw. Fl d'Oware II. p 18. t. 68 f. 2. 



Paloemee River: Versteeg 905, floating in stagnant water (fl. Octob.) 

 Upper Saramacca River: Pulle 496 (fl. Jan.). 

 Tropical Africa and South-America. 



Eichhornia crassipes (Mart.) Solms 1. c, 527. 



Pontederia crassipes Mart. ap. Rom. at Schult. Syst. VII. p 1137. 

 Upper Lawa River, near Cottica: Versteeg 372 (fl. Octob.) 

 Paramaribo : Focke 97 named Heteranthera formosa Miq. in Linnaea 

 XVII p. 61 = forma Eichhorniae asureae ex Miq. Stirp. Surin. Select 

 p 220. 

 Paramaribo: Splitgerber 236 H. L. B. 905, 88—92 in stagnant water 



(fl. Dec). 

 Upper Nickerie River: Tulleken 526 H. L. B. 903, 322—935 (fl. Octob) 

 Surinam: Hostmann H. L. B, 903, 322—283; Hostmann Hb. Rheno- 

 Traject. without number; Kappler Hb. Rheno-Traject, without num- 

 ber ; Wullschlagel 755 ; Coulon 62 ; Kappler 1952 ex Solms 1. c. 528. 

 Tropical and subtropical America. 



Eichhornia azurea (Sw.) Kth. Enum. pi. IV. p. 129. 

 Pontederia azurea Sw. Fl. Ind. Occ. 1. p 609. 



Paramaribo: Splitgerber 193 H. L. B. 905, 88—90, 89 in stagnant 



water (fl. Nov.) 

 Lower Surinam River: Kappler ed. Hohenacker 1842 (fl. Octob.) 

 Surinam: Hostmann H. L. B. 903, 322—333. 

 All tropical and subtropical South-America. 



PONTEDERIA Linn. 



Pontederia rotundifolia Linn. Suppl. 192. 



