66 Plants Collected in Paraguay. 



surmounted by the sepals aud glands. The flower buds are very 

 silky with appressed fuliginous hairs, and the branches of the in- 

 florescence marked in the; same manner. 



Heteropterys angustifolia, Gris., Linusea, xiii, 223. 



Between Yilla Rica and Escoba (48*7). January. 



A liana climbing high among trees, shrubby, or looking like a 

 small tree. Leaves opposite, or alternate, willow-like, linear, cuspi- 

 date, entire, glabrous, 4-8 cm. long, and 4-8 mm. wide, on petioles 

 bracteolate and articulate midway, 2-5 mm. long. Flowers in ter- 

 minal corymbs 4-8 cm. long. Found only in fruit, but persistent 

 sepals 5, oblong, with 2 glands on the outside of each, and petals 

 3-toothed. Fruit a samara in 2s., 2 cm. long, broadly winged. 



Heteropteris Pirayiiensis, Morong, n. sp. 



Suffruticose. Stem terete, angled or striate below, more or less compressed 

 and silky downy on tlie young branches, about 1 m. high. Leaves of a silvery 

 hue, opposite, entire, coriaceous, ovate, subcordate, apiculate, glabrous and 

 somewhat shining above, minutely downy beneath, often with 1 or 2 glands 

 near the base of the blade ; the largest collected 8 cm. long and 5 cm. wide. 

 Petioles canaliculate above, eglandulose or biglandular near the apex, 5-10 

 mm. long. Flowers in small terminal panicles. Found only in fruit, but the 

 persistent sepals oblong, each with 2 glands on the back. Flowers 4 in the 

 umbel ; pedicels jointed and bibracteolate above the base ; bracteoles minute, 

 obtuse. Samaras 2 together, obovate or sometimes cultriform, the wing beau- 

 tifully purple-tinted, shining and sculptured with striae, about 2 cm. long, on 

 slender peduncles 10-15 mm. long. 



Between Pirayu and Yaguaron (6t2). April 8. 



Heteropteris amplexicaulis, Morong, n. sp. 



A liana, twining over trees for 6 or 8 m. Leaves numerous, opposite, lan- 

 ceolate, elliptical or nearly orbicular, amplexicaul, apiculate, entire, callous 

 on the margins, glabrous, somewhat shining above, lighter colored beneath, 

 eglandulose, 2-6 cm. long, and l|-3 cm. broad. Flowers in rather small ter- 

 minal panicles. Calyx 4 or 5 parted, obtuse, downy, membranous and ciliate 

 on the margin, with 8, sometimes 10 glands. Petals 4 or 5, bright yellow, longer 

 than the calyx lobes (4 or 5 mm. long), rounded at apex, unguilicate. Pedi- 

 cels jointed and bracteolate just above the base, midway or near the apex, 

 occasionally glandular. Ovary quite hairy, the hairs sometimes reddish. 

 Samaras reddish-purple, 3, about 2 cm. long, pubescent below, the wing 

 sculptured with striae, broad, crenate on the upper margin. 



Asuncion (199). November-December. = Balansa 2400. 



