210 rianfs Cdlected in Partguay. 



Boiissengaiiltia baselloides, H. B. K., Nov. Gen., vii, 196. 



Asuncion (623); Pilcoinayo River (994). March-April. 



A very slender vine twining- over bushes and shrubs. The 

 flowers are greenish- white, sometimes a dark maroon color, minute, 

 spreading rotately in anthesis, in numerous, very slender axillary 

 racemes, the racemes solitar}^ or panicled. Leaves alternate, entire, 

 glabrous, pointed at the apex, subcordate, petioled, the largest 

 blades collected 6 cm. long by nearly as broad at the base. 



PHYTOLACCACE.^. 

 Kiviiia liumilis^ L., Sp. PL, 121. 



Asuncion (263 and 748); Pilcoraayo River (1544). December- 

 June. 



Petiveria alliacea, L., Sp. PL, 342. 



Between Villa Rica and Escoba (530); Asuncion (T70); Pilco- 

 inayo River (948). January-May. 



This plant, also occurring in South Florida, has a curious provi- 

 sion for the dissemination of its seed which is worthy of notice. 

 The linear-cuneate achenium has at the blunt apex 4-6 little knees 

 from which project as many weak spines, at first somewhat erect, 

 afterwards hardening and becoming reflexed and appressed, \ as 

 long as the achenium, or some 3 or 4 mm. in length. As the fruit 

 is easily drawn out of the enveloping sepals and these spines readily 

 catch upon passing animals, an excellent means of dispersion is 

 afforded. 



Microtea debilis, Sw., Prod., 53. 

 Caballero (4tl). January. 



Seguiera Paragiiayeiisis, Morong, n. sp. 



A tree 14-17 m. or more in height, witli a rather slender trunk and dark 

 gray bark, the branches smooth and witli lighter colored bark. Found only 

 in fruit. Leaves oval, entire, coriaceous, glabrous, obscurely but hardly 

 reticulate-veined, the margins with a callous edge, emarginate and mucronate, 

 rounded at the base, the largest blades collected 6 cm. long and 4 cm. wide ; 

 petiole about 1 cm. long. Stipules tuberculiform or a minute stiaiglit spine. 

 Samara 2-2^ cm. long, thickened at the base and expanding into an obtuse 

 wing 8-10 mm. broad, the wing angled, thickened and nearly straight on the 

 upper side, and very thin, cristate and curved on the lower side, nerved on 

 the faces, the nerves sloping towards the lower margin and often branching. 



