GREENMAN. — NEW ANGIOSPERMS FROM MEXICO, 111 



culate, 1.0 to 2 cm. high, 5 cm. in diameter: involucre about 4-seriate ; 

 bracts of the involucre lance-oblong, acute to obtuse, thickisli, striate, 

 externally somewhat tawny pubescent and as well as the corollas and 

 pales of the receptacle more or less glutinous: ray-flowers 12 to 16, con- 

 spicuous : disk-flowers numerous : achenes strongly compressed laterally, 

 spax'ingly hirsute-pubescent on both surfaces, loug-ciliate on the mar- 

 gins. — Mexico. State of Chiai)as: along road from Ocuilapa to 

 Tuxtla, altitude 600 to 1000 m., 29 August, 1895, E. W. Nelson, no. 307, 

 (hb. Gr., and hb. U. S. Nat. INIus.). 



The affinity of E. collodes seems to be with E. (/lutinosa, Rob. & 

 Greenm., and E. PringJei, Feruald. From the former it is distinguished 

 by the larger and fewer heads, longer involueral scales, and by the 

 absence of the long sericeous hairs on the young shoots ; from the latter 

 it is readily separated by the foliar characters. 



Encelia Conzattii. Perennial : stem covered with a grayish bark ; 

 branches and brauchlets purplish, slightly compressed particularly at the 

 nodes, striate, closely and minutely appressed-strigulose : leaves opposite, 

 short-petiolate, lanceolate, 5 to 10 cm. long, 1 to 2.5 cm. broad, acumi- 

 nate, acute, remotely denticulate, narrowed below into a crisp-undulate 

 base, dark green and puberulent above, pale and closely canous-pubes- 

 cent beneath : inflorescence a terminal leafy subcorymbose or paniculate 

 cyme: heads including the sulphur-yellow rays 2 to 2.5 cm. in diameter, 

 1 cm. or less high, on densely canous-pubescent peduncles 0.5 to 3 cm. in 

 length ; involueral scales 2-3-seriate, the outer scales subfoliaceous ; 

 ray-flowers usually 6 : disk-flowers about 35 : achenes sparingly pubes- 

 cent on both surfaces, conspicuously ciliate on the margins. — Mexico. 

 State of Oaxaca : altitude 1750 m., July-August, 1900, Conzattl & 

 Gonzalez, no. 1007 (hb. Gr.). 



Encelia pilosa. Annual : stem erect, purplish or stramineous, his- 

 pidulous-pubescent with long pilose hairs intermixed, somewhat stipitate- 

 glandular especially in the inflorescence : lower leaves opposite, petiolate, 

 broadly ovate, 3 to 14 cm. long, fully two-thirds as broad, acute, suben- 

 tire to crenate-dentate, hirsute-hispid above, hirtellous-pubescent beneath, 

 3-nerved from the base ; petioles neither winged nor auricled, usually 

 bearing long pilose hairs ; upper leaves gradually reduced and shorter- 

 petioled : inflorescence a many-headed nearly naked subcorymbose or 

 paniculate cyme : heads radiate, 10 to 12 mm. high : scales of the invo- 

 lucre imbricated in 3 to 4 series, more or less purj^lish colored, exter- 

 nally pubescent, the outer scales ovate, acute, shorter than the inner 

 lanceolate ones : ray-flowers, commonly 5 ; rays yellow, elliptic-oblong. 



