
COLOMBIAN EUPATORIUMS. 293 
no. 5541, ace. to Hieron. 1. c.; on savannahs and in thickets about Inzé, alt. 
1000-1700 m., Lehmann, no. 7994¥ acc. to Hieron., 1. e. 
Meta: in loam east of Villavicencio, alt. 450-500 m., Pennell, no. 1595 (Gr.). 
[Venezuela.] 
36. E. morifolium Mill. Large shrub or even small tree; 
branches thick, green, angulate-ribbed, pithy or often fistulose, when 
_ young slightly 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 em. 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 thyrsoid 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.— Dict. ed. 8, no. 10 (1768); Robin- 
Son, Proc. Am. Acad. xlii. 42 (1906). E. populifolium HBK. Nov. 
Gen. et Spec. iv. 111 (1820). E. critonioides Steetz in Seem. Bot. 
Herald, 145 (1854). E. megaphyllum Bak. in Mart. FI. Bras. vi. pt. 2, 
322 (1876); Hieron. in Engl. Bot. Jahrb. xxviii. 569 (1901). 
Magpatena: near Santa Marta on road to Onaca, alt. 305 m., H. H. Smith, 
no. 669 (Gr., U. S.). 
Et Vatie: La Paila, Holton, no. 317 (N. Y.); in dense thickets near Las 
Juntas del Dagua, alt. 2000-2800 m., Lehmann, no. 7697, ace. to Hieron. I. ¢. 
a8 E. megaphyllum. 
_ Wrrnovr LOCALITY: Triana, no. 1181 (N. Y.). 
[Mexico to Brazil.] 
A coarse species of wide range, originally described from Vera Cruz, 
passing without easy demarcation into several forms differing in leaf- 
contour, number of florets, and greater or less pubescence on the inflores- 
fence. 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 
