Plants Collected in Paraguay. 171 



Corolla very large and showy, a light purple or rose color .with- 

 out, and darker within. Capsules large, ovate, the 4 valves thick, 

 brownish, opening wide in dehiscence, and containing 2-4 3-sided 

 seeds, which are thickly clothed with a long fuscous wool. 



Ipomoea JVIartiiiicensis (Jacq.), Mey. Esseq., 98. 



Gran Chaco, near Asuncion (362). December-January. 



Procumbent or twining, with w^hite flowers but little over 2 cm. 

 long. It reminded me at the time of collection of our Convolvulus 

 arvensis. The leaves, however, are elliptical instead of being sagit- 

 tate. 



Ipomcea lHorongii, Britton, n. sp. 



Erect or ascending, minutely puberulent at least abov^e, 0.5 m. or more long. 

 Stems angled ; leaves petioled, the lower large, sometimes 2 dm. long and 

 nearly as broad, 3-lobed to the middle or beyond, the lobes lanceolate, acute 

 or acuminate, entire or very nearly so, mucronulate ; upper leaves ovate, 

 entire or lobed ; flowers corymbose, numerous ; ultimate pedicels short ; calyx- 

 lobes ovate, obtusish, 4-6 mm. long; corolla funnel-form (blue?), abruptly 

 narrowed within the calyx, 6-7 cm. long, 4-5 cm. broad at the summit. 



Luque (303). Perhaps the Mio-Mio, of Parodi, Contrib. PI. Par., 

 i, 16. 



One of the shrubby Ipomoeas, growing 9-12 dm. in height, vary- 

 ing much in different localities. The flowers are large, rose-tinted, 

 purple at the base within ; the tube covered with white, appressed 

 hairs. The corolla is sometimes 8 cm. in length, and nearly as 

 much in diameter when expanded. It occurs in open grounds at 

 Asuncion and near the railroad track at Luque, flowering from 

 December to May. 



Ipomoea tricliocarpa. Ell., Bot. S. Car. and Georgia, i, 258. 

 /. commutata, R. and S., Syst., iv, 228. 



Asuncion (253). December. 



Ipomoea tulierculata (Desr.), R. and S., 1. c, 208. 



Asuncion (237). = Balansa 1059. 



Taken altogether the handsomest Morning-glory of the country. 

 It grows everywhere in the woods, climbing over trees 10 m. or 

 more in height, and hanging out a rich profusion of lovely flowers, 

 which open at sunrise and continue open for half the day. The 

 leaves are palmately 5-lobed, the 2 lower lobes divided, very gla- 



