COLOMBIAN EUPATOUHMS. 321 



d. Fhnveriiis stcMu leafy to above th(> iniddlo; loavos tri- 

 angular, the base truncate or nearly so 82. E. pauj)eratnm . 



c. Leaves f>labroiis above (or with obscure vestiges of arach- 

 noid jniberulence), white-woolly beneath e. 



e. Leaves deltoid-ovate to suborbicular, rounded, trun- 

 cate, or cordate at the base 83. E. microphyllum. 



c. Leaves lance-ovate to lanceolate, acute at base. . .84. E. lanulalum. 

 a. Leaves j)innately veined /. 

 /. Leaves lanceolate, small, mostly 1-2 cm. lonj^; lateral veins 



4-G on each side of the midrib 84. E. lamdatum. 



f. Leaves narrowly oblong, 3-6 cm. long; veins 12-18 on each 



side of the midrib 85. E. stoechadifolium. 



80. E. ballotaefolium HBK. Weak branching herb or under- 

 shrub reaelung 1 m. in heiglit; stems flexuous, green, densely glandular- 

 pubcrulent to -tomentellous; leaves opposite or (at least the upper) 

 alternate, light-green, softly membranaceous (sometimes becoming 

 stiffish in age), acute, subtruncate or shallowly cordate at base, 2.5-4 

 cm. long, three-fourths as wide, 3-5-nerved, softly pilose on both 

 surfaces, paler beneath; petiole about 1.5 cm. long; heads 30-50- 

 flowered, 5 mm. high, in small dense terminal corymbs disposed in a 

 loosely and often irregularly branched open inflorescence; involucre 

 campanulate, the scales about 30, acute; corollas lilac or blue 

 (Pennell).— Nov. Gen. et Spec. iv. 121 (1820); Bak. in Mart. Fl. 

 Bras. vi. pt. 2, 360 (1876); Klatt in Engl. Bot. Jahrb. viii. 34 (1887). 

 E. urticaefolium L. f. Suppl. 354 (1781), not Reichard, nor Bak. 

 Conodinium prasiifolium DC. Prod. v. 135 (1836) ; Deless. Ic. iv. 6, t. 

 15 (1839). E. nepetoides Lindl. ex DC. 1. c. in synon. Conodinium 

 baUotaefolium (HBK.) Sch. Bip. ex Bak. 1. c. in synon. E. halloii- 

 folium [HBK.] Ktze. Rev. Gen. i. 337 (1891); Heering, Mem. Soc. 

 neuchat. Sci. Nat. v. 418 (1913). 



Cundinamarca: Guadalupe, alt. 3009 m., Bros. Apollinaire & Arthur, no. 

 30 (U. S.); La Pena. alt. 2800 m., Bros. Apollinaire & Arthur, no. 46 (U. S.); 

 dry meadow near Bogotd, alt. 2800-2900 m., Pennell, no. 2311 (Gr.). 



Antioquia: San Cristobal, alt. 2800 m., Bros. Apollinaire & Arthur, no. 98 

 (Gr.); cultivated ground, Yarumito, Mayor, no. 569, ace. to Heering, 1. c. 



Without locality: Mutis (Linn. Soc, phot. Gr.); Humboldt & Bonpland 

 (Par., phot. Gr.); Otto, no. 687 (Gr.); Triana, no. 1190 (K.). 



[Venezuela, Margarita Island, Brazil.] 



Variable, passing in Brazil into forms with smaller and more sharply 

 toothed leaves. In Colombia the following varieties may be dis- 

 tinguished on involucral characters: 



Var. typicum. Involucral scales lanceolate, moderately firm in 



