Plants Collected in Paraguay. 211 



Seeds round, flattened, with a black membranaceous testa, 4 mm. long. Fruit 

 in axillary or terminal and panicled racemes, on capillary pedicels 5-8 mm. 

 long. 



Roadsides east of Asuncion (690). May. 



Seglliera COriacea, Benth., Trans. Lin. Soc, xviii, 235. Ex descr. 



Asuncion (645 and 660). April. 



A half-climbing shrub, diffusely branched at the summit, 2^-3 

 dm. high, striate, glabrous below, the young branches and inflores- 

 cence tomentose. The samara, which has not been described, is 

 2-21 cm. long, the wing narrow at the lower part and much ex- 

 panded above, rounded at the apex and 10-12 mm. broad, many and 

 closely nerved on the faces. Seeds round, flattened, reddish colored, 

 5 mm. long. The stipules are straight, stout thorns, thick at the 

 base, often 2 cm. long. The branches of the panicle are also fre- 

 quently subtended by a thorn. It has ample panicles of white 

 flowers, and produces samaras profusely. Common in thickets. 



POLYGONACEJ^. 



Polygonum pimctatum, Ell., Bot. S. C. and Greorg., i, 455. 

 P. acre, H. B. K., Nov. Gen,, ii, 179, not Lam. 



Asuncion (88); Pilcomayo River (1033). November-May. 

 Abundant in the lowlands on the river-side at Asuncion, and also 

 occurring in the waters of the great laguna on the Pilcomayo River. 



Polygonum acuminatum, H. B. K., 1. c, 178, var. microstemon, 



Meisn. in Mart. Fl. Bras., v. 14, t. 4, f. 2. 



Pilcomayo River (1060). June. 



Leaves of this species are linear-lanceolate, some of them over 20 

 cm. long, appressed-pubescent on both sides, sessile or subsessile. 

 Fruit lenticular, black and shining. Ochrese long and setosely ciliate, 

 the bristles nearly 1 cm. long. Stem terete, perfectly glabrous, except 

 at the top, where it is hairy. Spikes thick, cylindrical. Flowers white. 



Polygonum liispidum, H. B. K., 1. c, 178. 



Pilcomayo River (1026). May. 



This species differs from no. 1060 in having a very hispid stem, 

 ovate or lanceolate, acuminate and black punctate-dotted leaves, 

 and the ochrege hypocrateriform, with shorter cilise. The spikes 

 are thick and cylindrical, red like those of our Prince's Feather ; 



