Plants Collected in Paraguay. 213 



ends of the short branches or branchlets. Branches at right angles to the 

 stem. Leaves coriaceous, veined and colored like 197 a, bat sometimes oval 

 as well as elliptical, small, oiily 2-2^ cm. long and 1-1^ cm. broad, rounded 

 or barely subcordate at tjie base, obtuse at the apex, on nearly capillary, 

 downy, plane petioles 2-4 cm. long. Flowers minute, greenish-yellow, alter- 

 nate, in nearly capillary racemes 3-4 cm. long, the rachis sharply angled, 

 pedicels 1 mm. long. Ochrese caducous. Ochreolse and bracts as in no. 197 a, 

 bat scarcely ^ mm. long. Perianth segments reflexed. Style short, 3-divided, 

 curling downwards over the ovary : stigmas 3, capitate. Fruit ovoid, attenu- 

 ate at both ends, 5 mm. long and 3-4 mm. in diameter, obtusely 3-angled, the 

 persistent enclosing sepals closely appressed. Seeds black, shining. 



Deep woods on the banks of the Pilcomayo River (882). January. 



Coccoloba micropliylla, Morong, n. sp. 



A small tree, much branched, with dark, rugose bark, 5-8 m. high, glabrous, 

 the young branches striate and lighter colored. Leaves oblong-elliptical, 

 coriaceous, glabrous, dark green, obtuse at the apex, narrowed at the base, on 

 glabrous, canaliculate petioles 5 or 6 mm. long, the blades 3-9 cm. long and 

 1^-2^ cm. broad. Flowers white, in axillary racemes 5-8 cm. long, not over 

 5 mm. high, commonly 2 contained in the same ochreola, mostly crowded on 

 all sides of the rachis ; pedicels 2-3 mm. long. Ochrese about 5 mm. long. 

 Ochreolas 3-lobed, 2 mm. long. Bracts obtuse. Styles 3, erect ; stigmas 3, 

 capitate. Fruit ovoid, obtusely 3-angled, 5-8 mm. long. 



This, like the preceding" species, grows in dense thickets on the 

 banks of the Pilcomayo (899). = Balansa 2059. January. 



AKISTOLOCHIACEiE. 

 Aristoloctiia Giberti, Hook., Bot. Mag., t. 5345. 



Near Luque (714). May. 



A very handsome climbing- vine, clambering over trees. The 

 large round-cordate, glaucous leaves are on petioles 3-5 cm. long, 

 having rounded, foliaceous, sessile stipules in their axils. The 

 flowers are solitary, conspicuous for their shape and color. The 2 

 projecting lobes stand out of the inflated body at right angles, 

 giving the flower the look of a duck or swan swimming in the 

 water. For this reason it is popularly called patito, or little duck. 

 Flowers greenish, striped or spotted with purple. The pods are 

 cylindrical, 4 cm. long, 2 cm. in diameter, truncate at both ends, 

 filled with thin, flat, obovate seeds. 



