COLOMBIAN EUPATORIUMS. 293 



no. 5541, ace. to Hicion. 1. c; on savannahs and in thickets about Inzil, alt. 

 100O-170{) m., Lchmanii, no. 7994, ace. to Hieron., 1. c. 



Mkta: in loam east of \'illaviccncio, alt. 450-500 m., PcnncU, no. 1595 (Or.). 



[Venezuela.] 



36. E. morifolium jNIill. Large shrub or even small tree; 

 branches thick, green, angulate-ribbed, pithy or often fistulose, when 

 young slightl}- woolly, soon nearly or quite glabrate; leaves opposite, 

 large, broadly ovate to ovate-oblong, coarsely serrate (teeth 1-2 mm. 

 high, 4-8 mm. wide at base), mostly short-acuminate at the tip, 

 rounded to an entire usually obtuse, rarely acute or sometimes cordate 

 base, 12-20 cm. long, 8-13 cm. wide, firm-membranaceous or some- 

 what thick-chartaceous, green on both sides, 3-ribbed above the base 

 (in other cases almost regularly pinnate-veined), pellucid-punctate; 

 the smaller veins light-colored and slightly prominulent beneath; 

 heads (4-)8-12-flowered, subsessile to shortly pedicellate, in large 

 dense terminal leafy-bracted thNTSoid panicles; involucral scales 

 stramineous, ovate, obtuse or rounded at the apex, smoothish or 

 arachnoid-woolly, about 5-ranked; corollas (greenish to yellowish- 

 white) tubular, 4 mm. long, slightly constricted just below the limb; 

 teeth lance-oblong; achenes 2 mm. long, dark-olive to nearly black, 

 with narrow lighter-colored ribs. — Diet. ed. 8, no. 10 (1768); Robin- 

 son, Proc. Am. Acad. xlii. 42 (1906). E. populifolium HBK. Nov. 

 Gen. et Spec. iv. Ill (1820). E. critonioides Steetz in Seem. Bot. 

 Herald, 145 (1854). E. mecjaphjUum Bak. in Mart. Fl. Bras. vi. pt. 2, 

 322 (1876); Hieron. in Engl. Bot. Jahrb. xxviii. 569 (1901). 



Magdalena: near Santa Marta on road to Onaca, alt. 305 m., //. H. Smith, 

 no. 669 (Gr., U. S.). 



El Valle: La Paila, Holt on, no. 317 (N. Y.); in dense thickets near Las 

 Juntas del Dagua, alt. 2000-2800 m., Lehmann, no. 7697, ace. to Hieron. 1. c. 

 as E. megaphylluvi. 



Without locality: Triana, no. 1181 (N. Y.). 



[Me.xico to Brazil.] 



A coarse species of wide range, originally described from Vera Cruz, 

 passing without easj^ demarcation into several forms differing in leaf- 

 contour, number of florets, and greater or less pubescence on the inflores- 

 cence. Abundant material is now available from Mexico and Central 

 America, but it does not fall into satisfactory varieties. 



37. E. thyrsigerum Hieron. Soft-woody shrub with liana-like 

 terete striate stems sometimes 5 m. in length; leaves opposite, ovate, 

 12 cm. or more long, 5 cm. or more wide, acute or somewhat attenuate 



