78 : REMARKS ON GUACO PLANTS. 
tiolus striatus, basi in cylindrum auctus et incrassatus, tertiam folii 
. partem longitudine æquans. Folia 6—8-pollicaria, alterna, elliptica, 
coriacea, cordata, breviter acuminata, integerrima, glabra, lucida, 
utrinque nervis tribus prominentibus canaliculatis aut striatis, de 
medio ad basin nonnil angustata, lobis cordatis brevibus rotun- 
datis approximatis. Vulgo dicitur, 'Huaco.'—La Llave in ‘ El 
Mosaico Mexicano,' tom. ii. p. 299. 
* Grows on the banks of the Rio Blanco, Hacienda of Guadalupe, 
two leagues south of Cordoba. 
* Having received of this species only imperfect specimens, without 
any flowers, and finding that it had alternate leaves, I began to doubt 
whether it actually belonged to Mikania ; but in submitting it to M. 
Manuel Bustamenta, Professor of Botany of our Museum (Mexico), 
that gentleman assured me that the leaves very much resembled those 
of the living Huaco plant in the National Garden, brought thither 
from Chiapas. Another circumstance which induced me to consider it 
a Mikania, was that on chewing for some time a piece of the leaves a 
pungent sensation is perceived, followed by a bitter taste, which im- 
mediately attacks the salivary glands. 
“TI, MIKANIA REPANDA, La Llave. 
“ Folia 8-pollicaria, opposita, longe petiolata, ovato-cordata, margine 
versus apicem integro, versus basin repando, utrinque scabra, nervis 
quinque striatis et prominentibus, lobis baseos magnis et rotundatis. 
Vulgo appellatur, * Huaco macho.'—La Llave, 1. c. p. 299. 
** Very abundant about Cordoba. My specimens were obtained on 
the farm of Corral y San Antonio. 
“TTT. MIKANIA ANGULATA, La Llave. 
“ Folia opposita, longe petiolata, 5-nervia, nervis canalieulatis, ovato- 
cordata, obtusiuseula, versus apicem integra, versus basin lobis pro- 
funde cordatis dentato-angulatis, supra scabra, subtus villoso-sub- 
tomentosa. Nomen vernacul. ‘Huaco hembra.—La Llave, 1. c. 
p. 299. 
* Very abundant about Cordoba. 
** The two latter species, Nos. 2 and 3, were in flower, and are un- 
doubtedly true Mikanias. The difference however between them is 
very slight. The margin of M. repanda from being entire gradually 
