SOUTH AMERICAN BOTANY. 293 
with very differently shaped leaves from the preceding, not 
at all white beneath, and a differently formed corolla. 
718. (1) Cynanchum nummulariefolium (Hook. & Arn.) ; 
levissime pubescens, foliis rotundatis obtusis retusisve cum 
mucrone marginibus anguste revolutis, cymis paucifloris sub- 
sessilibus, corolla subcampanulata, corona monophylla 5-loba 
lobis rotundatis antheris oppositis, stigmate apiculo bifido.— 
Cordilleras of Chili. Cuming, (N. 276.) Sierra Bella Vista, 
Aconcaja. Bridges, (n. 161.)—This is readily distinguished 
by its copious, roundish, subcoriaceous, pale yellow-green 
leaves. 
719. (2) Cynanchum myrtifolium (Hook. & Arn.); sub- 
pubescens, foliis ellipticis seu elliptico-ovatis obtusiusculis, 
cymis paucifloris subsessilibus, corolla sabeampanulata, corona 
membranacea cupuliformi subplicata vix lobata ore truncato 
gynostegium zsequante corolla duplo breviore laciniis carinisve 
interioribus nullis, stigmate apiculo bifido.—Near Osorno, 
Chili; growing among bushes, rare. Bridges, (N. 599.) — 
720. (3) Cynanchum cuspidatum (Hook. & Arn.); gla- 
brum, foliis ellipticis basi acutis apice cuspidatis, cymis sessili- 
bus multifloris, corolla subcampanulata intus pubescente, co- 
rona pentaphylla foliolis lineari-lanceolatis gynostegio longi- 
oribus.— Plentiful in the woods of La Goa, S. Brazil. Tweedie, 
(n. 291.) 
721, (4) Cynanchum diffusum (Hook. & Arn.) ; glabrius- 
culum, foliis (paucis parvis) lato-lanceolatis cuspidatis, ramis 
floriferis subaphyllis, cymis subsessilibus 3—8-floris, corolla 
subrotata glabra, corona pentaphylla foliolis lineari-acuminatis 
gynostegio longioribus.—Ionidium diffusum. Gill. i» Bot. 
Mise, v. iii. p. 145.—About Buenos Ayres, Dr. Gillies, 
and frequent there upon the hedges of Cactus. Tweedie, 
(n. 220.) — When this plant was referred to Jomidium, its 
flowers were unknown to Dr. Gillies. We now possess 
copious flowering specimens, which are remarkable for the 
almost entire failure of leaves upon those numerous branches 
Which bear the blossoms, giving the plant a very naked 
appearance. 
