New SPECIES or SOUTH AMERICAN PLANTS 89 
sheath, its margin more or less fimbriate, the fimbriae dark- 
colored. Blades 5 to 7 cm. long, I. 5 to 3 cm. broa d, oblong- 
ties upcu and connecting near the margin, connected by 
numerous crooked tertiaries, which are sligntly impressed o 
e upper surface acemes axillary, peduncled, elongated, 
thin. Dva ari , the naet pe nds of the calyx ve 
unequal, mostly small and obscure. Disk of two thick scales 
half as lo s the ovaries, obovate with truncate summ 
Corolla-tube about 1 1.5 ide, the throat 
nairowly campanulate, 2 i : many-nerved, the 
à 3 to 3.5 cm. broad. Follicles nearly parallel, 8 to 10 c 
long, and 8 mm. broad after opening and expanding, terete, 
lightly falcate. 
“Cotana, near Ilimani, Bolivia, 2,450 meters altitude, Nov- 
ember, 1911. A climbing shrub of variable height.” (Otto 
Buchtien, No. 3229. 
The habit of this plant is quite unlike that of Dipladenia, 
as are its peculiar interpetiolar sheaths and its calyx-glands. 
. It is quite different in these respects from any other genus, and 
is likely, on better acquaintance, to prove distinct. 
Odontadenia cuspidata, n comb. 
= Dipladenia cuspidata Rusby. Bull. N. Y. Bot. Gard. 
4:410 (1907). 
Mandevilla attenuata. 
Soft- -tomentose throughout, the stems very slender, terete, 
striate, reddish, the internodes shorter than their leaves. Peti- 
oles extremely short, thick, the blades 6 to 9 cm. long, 2 to 3.5 
ém. broad, lanceolate with rounded or slightly = date base and 
long-acuminate and acute summit, deep-green above, yellow- 
ey beneath, the pisc veins lightly impressed above, 
t 
i . 
io. ered, Hie c d about equal, both angle, ‘exceeded by 
we E short, 3 or 4 mm. br oad, ile divisions appressed, 
anceolate, long and slenderly acuminate. Inner scales of es 
Calyx short, Ovate, obtusish, ice equalling the very thic 
