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Willoughbya trifolia sp. nov. 
Branchlets, lower leaf-surfaces and peduncles minutely puberu- 
, dense; peduncles of the heads 2-4 mm. long; involucral 
scales . mm. long, 2 mm. broad, oblong, abruptly and acutely 
pointed, tricostate; akene dark-brown to black, nearly 3 mm. long, 
strongly angled ; pe 4 mm. long, copious, rigid, rather coarse ; 
corolla-tube Slemier mm. long, the lobes spreading, 1.5 m 
long, oblong; pio beeke: filiform, spreading widely, 3 mm. long. 
‘* A low climber, with white flowers, in wet forest-mould, scarce.’ 
Coroico, September 10, 1894. (Vo. 2426.) The same as Afandon 
266, which Schultz-Bipontinus has called, without description, 
Mikania trifolia (Linnaea 34: 535. 1865-66). 
Willoughbya longiflora sp. nov. 
Ferruginous-tomentose; stems and branches stout; petioles 4-8 
cm. long, very stout; blades 1-1.5 dm. long, two-thirds as broad, 
ovate, deeply cordate, acute, thin, dark-green and slightly scabrous 
above, ferruginous-tomentose underneath, 3- or 5-costate, the princi- 
pal veins very strong and prominent underneath ; peduncles much 
elongated, angled; corymbs r-1.5 dm. broad, lax and open; ped- 
uncles of the heads lara ee scales of the involucre ae mm. 
mm. long; anthers very thick and prominent; style-branches 3 
mim. long. 
‘¢ Climbing 8 to ro ft. in forest shade, the flowers greenish-white ; 
scarce.” Calapampa, near Coroico, July 5, 1894. (Vo. 2325.) 
Also zo. 2297. 
Willcughbya leucophylla sp. nov. 
Glabrous except for the finely white-scurfy veinlets underneath ; 
branchlets stoutish, finely and regularly costate, pale; stipules 
rhomboidally uate, recurved into a pouch-like form, the pouch 
ovoid, 1 cm. long, 5 mm. broad, ae oan brown with numerous 
light ribs or striae; petioles 2-4 cm. long, slender; blades 0.6—-1.2 
long, 3 . broad, ovate, strongly cordate, abruptly and 
slenderly acuminate but scarcely acute, the margin obscurely sin- 
uate, coriaceous, dark-green above, whitish underneath, 5-ribbed, 
the principal branches t meeting at some distance from the margin, 
