162 PROCEEDINGS OF THE ACADEMY OF 



Rio Sinu in Bolivar, the Rio Cauca in Valle, and the Rio Don Diego 

 in Magdalena; doubtless wide-spread elsewhere. Ranges from 

 Mexico to Argentina and in the West Indies. 



Bolivar. Boca Verde, on Rio Sinu (gravelly river-bank, alt. 

 90-120 m.), Pennell 4197, (field along river, alt. 100-200 m.), Pennell 

 4567; Frasquillo, on Rio Sinu (grove along river in village, alt. 

 90-120 m.), Pennell 4610; Vilches, on Rio Sinu (shaded yard, alt. 

 20-50 m.), Pennell 4708 [corolla blue], 4709 [corolla pale-blue], 

 4710 [corolla intermediate in color between 4708 and 4709]. 



Magdalena. Open sandy ground by the Rio Don Diego, near the 

 sea, H. H. Smith 2730 (Y). 



Valle. La Paila, I. F. Holton 580 (H, Y). 



2. Lendneria angulata (Oersted) Pennell, comb. nov. 



Stemodia angulata Oersted in Kjoeb. Vidensk. Meddel. 1853: 22. 1853. 

 "I Naerheden af Cartago i Costa-Rica." 



Certainly distinct from Stemodia jorullensis H. B. K., Nov. Gen. 

 et Sp. 2: 358. 1818, which is described as 1-1 \ feet tall and with 

 leaves in threes, incised or doubly serrate. 



Moist soil in shade, river-banks and waste land, at altitudes 

 below 600 meters, Tropical zone, along the Rio Sinu in Bolivar, 

 and in Magdalena; doubtless wide-spread in northern Colombia. 

 Ranges northward to Guatemala. 



Bolivar. Frasquillo, on Rio Sinu (shady soil along river, alt. 

 70-100 m.), Pennell 4192. 



Magdalena. Minca (clamp door-yard, in crevices of bricks, alt. 

 600 m.), H. H. Smith 1328 (C, H, U, Y). 



13. VANDELLIA Browne. 

 Vandellia Browne; L., Mant. PI. 1: 12, 89. 1767. 

 Type species, V. diffusa L. 



1. Vandellia diffusa L. 



Vandellia diffusa L., Mant. PI. 1 : 89. 1767. "Habitat in Insula S. Thomae. 

 D. D. Browne." Description inaccurate in describing the calyx as quad- 

 ripartite (but with upper lobe subbifid), its lobes equal, the lower lip of 

 corolla as bilobed, and the capsules as one-celled, but is nevertheless 

 certified by Bentham, DC. Prod. 10: 416. 1846 as being the plant here 

 considered. 



Lindernia diffusa (L.) Wettst, in Nat. Pflanzenfam. 43b : 79. iggi. 



Pyxidaria diffusa (L.) Kuntze, Rev. Gen.: 464. 1891. 



Moist open soil, along trails and in towns, at altitudes beiow 

 1500 meters, Tropical zone; widely distributed through tropical 

 America, in situations to suggest its having been naturalized. Ap- 



