Plants Collected in Paraguay. 137 



sively cultivated an Paraguay for the manufacture of indigo, of 

 which it makes an excellent quality, but is now seldom seen, except 

 in the wild state. A shrub 12-15 dm. high, with white striate 

 stem and large ovate-lanceolate, serrate leaves, the whole plant 

 very smooth. Pappus tawny. Heads small, 15-20 flowered. 



£upatoriiiiit laevigatum, Lam., Encyc, ii, 408. 



Pilcomayo River (951). March. 



Stem 12-18 dm. high, viscous, much branched. Flowers blue, 

 the corymbs with numerous crowded heads, on widely spreading 

 terminal branches 25-35 cm. long. Heads cylindrical, 8-10 mm. 

 long, with 4 or 5 rows of 3-5 nerved scales, about 20-flowered. 

 Achenia black, glabrous. Leaves petioled, lanceolate or ovate- 

 lanceolate, 4-12 cm. long, 2-5 cm. wide, acuminate, more or less 

 serrate above the sloping base. 



Some of this was probably distributed as E. conyzoides. 



Eupatorium macrocephallim (D.C.), Less., Linnaea, 1830, p. 836. 



Caballero (463); Pilcomayo Kiver (1513). January-April. 



The long naked peduncles, large heads, purplish involucral scales, 

 purple flowers and long plumose purple styles of this plant bear a 

 striking resemblance to Liatris when growing on the campo. Heads 

 often 2 cm. high and as broad when in full flower, 75-100 flowered. 

 Stems very glandular hairy or bristly, the hairs nodose and trans- 

 lucent. 



Eupatoriiim macropliyllum, L., Sp. PL, Ed. 2, 1175. 



Asuncion (280 and 280 a). December. 



This was one of the "stickiest" plants I ever encountered, the 

 stems and leaves being covered with glandular hairs, and adhering 

 so forcibly to the drying-paper that it required a daily change and 

 nearly a month's drying to make herbarium specimens. Flowers 

 very numerous, a bright purple, with long protruding yellow styles, 

 giving them quite a variegated appearance. Heads 50-60 flowered. 

 Leaves large, on long petioles, cordate-ovate, crenate. 



Eupatorium inulticreniilatiim, Schultz Bip. ; Baker, 1. c, 335. 



Yilla Kica (482) ; Asuncion (632). January-March. 

 Suffruticose, like many other species growing in Paraguay. 

 Stems from Ij to 2 m. high, hoary with white down all over, with 



