154 New Species of South American Plants 



the involucre hemispherical, 8 mm. broad, 6 mm. high, the base 

 umbilicate, the scales in 2 series, green, strigose, broadly ovate, 

 obtuse. Rays wanting. Scales of the disk 3 mm. long, not 

 quite equaling the flowers, obovate, keeled, abruptly contracted 

 into a short, blunt, broad point. Akenes (very young) small> 

 about as broad as long, truncate, the pappus of about three 

 coarse, caducous, crooked bristles, the longer nearly half the 

 length of the corolla, which is broadly infundibular, the lobes 

 about a fourth of its length. Style-branches elongated, ap- 

 pendaged with one or more long hairs. 



"In open land near Cacagualita, 1600 feet, November 15. 

 About 4 feet high." (Herbert H. Smith, Colombia, No. 2719). 



Encelia soratensis. 



Scabrous throughout, the stem erect, strongly costate, the 

 branches slender, strongly ascending. Leaves sessile or with 

 a very short ciliate petiole, 2.5 to 5 cm. long, 1 to 2 cm. broad, 

 ovate with the base abruptly produced into the petiole, acumi- 

 nate and acute at the summit, obsoletely serrate, thickish, deep- 

 green, lightly bullate and harshly strigose above, paler and 

 pilose underneath, 3-nerved, the lateral pair nearly basal and 

 very near the margin. Heads solitary at the ends of the branches, 

 long and slenderly peduncled. Involucre about 2 cm. broad, 

 crateriform, umbilicate at the base, the outer scales in about 

 3 series, sub-equal, lanceolate, the tips recurved, the inner erect, 

 oblong, obtuss, all strongly nerved, the disk 1.5 cm. broad, 

 strongly convex, in fruit sub-globose. Exserted portion of 

 rays 1.5 cm. long, oblong, slightly toothed, the lower portion 

 lightly pilose externally. Scales of the disk 7 mm. long, lance- 

 oblong, obtuse, about three-fourths the length of the flowers. 

 Akene, in flower, half the length of the corolla, obovate, truncate, 

 compressed, the longer awn about as long as the narrow portion 

 of the corolla-tube, which is half the length of the akene and 

 coarsely pilose and about one-fourth the total length of the 

 corolla. Corolla-lobes short, ovate, acutish, slightly recurved. 

 Style-branches recurved, flattened. 



"In cultivated fields, Sorata, Bolivia, 7500 feet. Octoberf 

 1902." (R. S. Williams, No. 1546.) 



Encelia deltoidea. 



Softly pubescent throughout, the hairs of the stem divari- 

 cate. Branchlets stout, erect, angled and striate, the inter- 

 nodes 6 to 8 cm. long. Petioles i to 2 cm. long, stout, 3-ribbed, 

 subtended by inequilaterally ovate stipules about 6 mm. long 

 and broad, with rounded summit. Blades 6 to 12 cm. long, 4 

 to 8 cm. broad, deltoid, the base sub-truncate but with a short 

 very broad, cuneate projection into the petiole, the summit 



