296 ROBINSON. 
INTENDENCIA DEL Cuoco: mouth of the Nercua, Schott, no. 4 (Field Mus.). 
ANTIoguia: roadsides at Guaca, alt. 1480 m., Mayor, no. 576, ace. to Heer- 
ing, l. ¢. : 
MaGpALENA: a common weed at several points near Santa Marta, alt. 
150 m., H. H. Smith, no. 522 (Gr., U.8.). 
Touma: river-gorge below Nalagaima, Rusby & Pennell, no. 1167 (N. Y.) 
field loam, “La Trinidad,” Libano, Pennell, no. 3372 (Gr.). 
Ex Vaute, La Paila, Holton, no. 319 (N. Y.); near Cali, alt. 300-1000 m., 
Lehmann, no. 7700, ace. to Hieron. 1. ec. 
{Mex. to Boliv., Venez., Lesser Antil., Porto Rico., and Jam.] 
A common and weedlike plant of wide distribution in the warmer 
parts of America. The nearly related but distinct FE. Sinclairt Benth. 
of Panama and Central America may well occur in the northern parts 
of Colombia. It is more delicate and has an involucre more turbinate 
at the base, the very small and sharply pointed outermost scales being 
_ inclined to extend down upon the summit of the almost capillary 
pedicel. : 
41. E. pycnocephalum Less. Herbaceous perennial, 48 dm. 
or more high, finely pubescent, the hairs incurved; internodes, espe 
at base in a more or less conspicuous callosity, the intermediate and 
outer gradually shorter oval and obtuse to rather narrowly lanceolate 
and decidedly acute, nearly smooth to conspicuously pubescents 
florets normally roseate or purplish; achenes black with lighter ribs, 
somewhat pubescent at least-on the ribs.— Linnaea, vi. 404 (1831); 
Heering, Mém. Soc. neuchat. Sci. Nat. v. 419 (1913). E. Schiedeanum 
Schrad. Ind. Sem. Hort. Goett. 1832, p. 3 (1832); Heering, 1. ¢ : 
Schiedeanum, var. virgatum (Schrad.) DC. Prod. v. 159 (1836) ; 
Hieron. in Engl. Bot. Jahrb. xix. 45 (1894). 
Macpatena: near Santa Marta, alt. 762 m., H. H. Smith, no. 623 (Gr.); 
distrib. as Ageratum mexicanum. 
