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is to be found under Viguzera, but the absence of scales at the apex 
of the achene shows that it is a Helianthus. 
It is true that the achenes of the center of the heads are generally 
covered with bristly hairs and, at the apex, those hairs, exceeding 
a little the length of the fruit, may look like a very reduced pappus. 
But where the very caducous lateral bristles are preserved, one may 
see very distinctly that those bristles alone form the pappus. In 
that case, if hairs are developed on the fruit, it is obvious that 
they are inserted on the outer wall of the achenes. It is very inter- 
esting to note that in the same head some achenes are quite glabrous 
and some others are covered with bristly adpressed hairs. 
Our plant resembles HY. corntfolius and aureus H.B.K., with 
the original of which we compared it in Paris, but AZ. cornzfolius 
differs by its hirsute stems and wider and very scabrous leaves. : 
aureus differs also by its oblong leaves and larger heads with ligu- 
late flowers attaining 3 X 0.5 cm. length and width. 
The Viguzeras being very near allies of Helzanthus we wish to 
note also the species of that genus most resembling our plant. 
These are only Vigu¢era dentata Spreng. from Guatemala or V. 
decurrens and helianthoides from North America. But all of them 
are quite distinct. 
Lipochaeta lifuana Hochr. sp. nov. 
Prob. suffrutex, totus adpresse viloso-argenteus. Caules ob- 
scure tetragoni, praecipue apice dens e villosi. Folia opposita, 
valde variabilia, a lanceolato-oblonga ad ee lanceolato-linearia, 
adpresse villosae. Thalamus fere ae radii flo I-I 
luteae, ligulatae; disci flores tubulosi, 5-lobati, loborum margine 
rifoliae Gray, simillima, compressa, angulata, apice truncata et 
villosa. Fructus maturos non vidi. 
Petiolio. 3 -o.7 cm. longi, lamina 2.8 x 1 X 0.7-2.2 XO. 35- 
. longa et lata. Pedunculi uni nilcaprtal 2-3 cm. lon 
Capitula cum bracts, praeter radium ca. tr cm. in diametro eee 
flores ligulati ca. 1-0.8 cm. longi, flores tubulosi cum achaenio ca. 
0.6 cm. longi; ee exteriores ca. 0.4 X 0.3-0. 5x vix 0.2 cm. 
olngae et latae; paleae ca. 0.55 cm. longae. 
