ONSOUTH-AMERICAN APOCYNACEZ. 31 
TRIBE TABERNZEMONTANE.E. 
This tribe is here restricted within more precise limits than those employed by 
De Candolle. Its chief character resides in its 2 broad spreading follicles dehiscing along 
the ventral suture, which is bent inwards and placentiferous on both margins; the seeds 
all present similar characters to those explained under Peschiera, being half-immersed 
in a soft fleshy substance shown to be a funicle—a fact of great importance, a struc- 
ture, as far as we yet know, peculiar to this tribe. Its numerous species are in- 
coherently classified by Müller, being confounded by him in the single genus Taber- 
nemontana, and placed in his tribe Plumeriee. The following clavis shows the dif- 
ferential features of the genera into which the South-American and Mexican species are 
here divided. 
A. Estivation of corolla sinistrorse : leaves opposite. 
a. Disk, none. 
1. Tube of corolla very slender, cylindrical, swollen at the base, and there 
staminigerous, segments shorter than the tube, and simply contorted; 
follicles subovoid and muricated ` 0.0. 0.0.0.0... 0. . + Peschiera. 
6. Disk cylindrical, often short, wholly adnate to the lower portions of the ovaries. 
2. Tube of corolla cylindrical, swollen below the contracted mouth, and there 
staminigerous, segments long and narrow with a peculiar introflexed esti- 
vation, and descending into the mouth of the tube ; follicles oblong, gibbously 
curved, smooth . . . 2 ny . Bonafousia. 
3. Tube of corolla slender, Schong a little sacked $ in ts mouth, cassis 
dolabriform simply convoluted; stamens slender, of a bluish tinge, always 
more or less exserted in the apex; follicles smooth, arcuated . . . . . Tabernemontana. 
4. Tube of corolla stouter, cylindrical, swollen in the middle and there stamini- 
gerous ; anthers subcoherent in a cone; follicles oblong, arcuate, smooth . Taberna. 
5. Calyx long, tubular, with a 5-toothed margin; tube of corolla stoutish, 
cylindrical, constricted in the middle and there staminigerous; anthers 
slender, free; disk half length of ovaries, with a denticulated margin; 
delen OVALE, Apiculacod; MOGO oa. os o ge n 04 191 + Dodonemma. 
c. Disk cupshaped, half length of ovaries. 
6. Tube of corolla cylindrical, stoutish, fleshy, constricted in the middle, above 
which it is staminigerous; anthers free, slender; follicles ovate and muri- 
CADA BS FICIAL =. >. 2. L5! |. Phoca pas: 
d. Disk cylindrical, truncated, fleshy, wholly or partially concealing the ovaries. 
7. Tube of corolla gradually swelling from below the mouth, segments oblong, - 
obtuse, nearly as long as the tube, inflected at 4 of their height, and 
descending within the mouth of the tube; follicles gibbously px com- 
pressed, smooth . . . : . Anacampta. 
'8. Tube of corolla short, —— ind shortly pem at We e EE 
