348 ROBINSON. 
n. Heads about 5-flowered, marist singly or by 
few-headed glomerules in a loose g cymose 
panicle; leaves sparingly Aabsoiant to ada h 2? 
DOQORG foc hs SN We ais Se 16. E. iresinoides, 
m. Inflorescence compact; heads Cia eee 0. 
o. Leaves obtusish or barely a ute p. 
p. Heads sessile tn) nearly so; eave crenate almost 
from the base: “shrubsioe 4.0 rs tot 17. E. chamaedrifolium. 
Dp. frands slender-pedicelied; leaves mie: from 
about the middle or subentire; tre ..18. E. prunifolium. 
o. Leaves acuminate o: gers nuate @. 
q. Leaves ovate, undersanes 
r. Leaves thin, delicatel membra naceous; in- 
volucral scales ciliate but: sli ghtly if at all 
Sree pubescent; corollas about 3.5 mm 
WON a Sa eee) eee Pak pseudoglomertiia 
r eaves thickish or somewhat firm 
e: Lorie dorsally agian as well me ciliate; 
corollas (proba Ww 35 ong : 
(p y white) se orig 
. Seales ciliate but essentially glabrous ‘dor- 
ane sac seberie (lilac-blue) 5.5-6 mm. long. 21. E. Stuebelii. 
iC-OV: 
n short thickish eclinles Seer ie . E. inulaefolium. 
ge 18-70-flowere tea 
. Heads densely co d 
u. Leaves wy dalenchcr ho: 23° em. long, coarsely ee 

OMA Ae eas Wi i ede eon ae . E. rugosum. 
u. Leaves 6-9 cm. oe petioles 5-10 mm. lon: 
— Ov: _ raf vate-lanceolate, — "thant half 
as long as broa tate but ti abrous 
os ae a eae ay ee obscsrifolin 
v. Leaves ovate-lanceolate, about adie pubescent 
d'giandularatomifercus beneath....... 25. E. chi imborazense. 
i Heads | loosely pani 
es i 
w. Annual herb; leaves thin, membranaceous; noo 
a Se Bi as os a ee ek ee E. microstemon- 
t. dali xxx. 15 900).— Pictinena: ‘at ome base 
Pichincha, alt. =a m., Jameson, no. 154 (K.). CHIMBORAZO: a 
the foot of the Voleano inwekagns: near the village of Penipes # 
2470 m., Humboldt & Bonpland (Par., phot. Gr.). PRov. NoT ior 
CATED: in shade among thickets on high plains, Sodiro, no. 6/7 
ace. to Hieron. I. ce. 
Although no material of E. Jamesonii Turcz. Bull. Soc. Nat: Mose. 
xxiv. pt. 1, 169 (1851) has been seen by the writer, it is im 
from its character and habitat to doubt its identity with Z. salicinwn 
Lam., with which it appears to agree fully in all important features 
