. 116 ON SOUTH-AMERICAN APOCYNACEÆ. 
subinequilateral, pubescent, ciliato-denticulate on the margins, 4 lines long; corolla 
4 lines long, tubular, with a border of 5 ovate-oblong, nearly equilateral segments dex- 
trorsely convolute in œstivation; stamens seated a little above the base of the tube on 
short pubescent filaments; anthers hairy behind, included, and nearly as long as the 
tube; disk of 5 obtusely ovate truncated lobes, as long as the ovaries; style short, 
incrassated at its summit by a cylindrical clavuncle, having a 5-cleft indusium at its 
base; stigmata 2, shortly rounded; 2 follicles, spreading, terete, pointed, glabrous out- 
side. A species well known to the natives under the name of “ quilmay,” being used to 
produce sneezing. 
4. ELYTROPUS HETEROPHYLLUS, nob. : Elytropus Chilensis, Müll. (in parte) l. c. p. 440: Echites hetero- 
phyllus, Miquel in Linn. xxv. 653. In Chile, prov. Valdivia (Lechler) : v. s. in herb. meo (n. 7914), 
Chiloé (Capt. King). 
Captain King's plant does not appear to differ from that of Lochler, as described by 
Miquel. The branches are dark red, terete, scabridly granulous, not dilated at the axils, 
which are 1-13 in. apart; leaves opposite, in equal pairs, but the pairs vary in size, the 
lower ones largest, they are elliptic, narrower and obtuse at the base, acuminate and 
mucronate at the summit, rigidly chartaceous, with very revolute margins, green above, 
glabrous, subrugulous, flavidly opake beneath, punctate-rugulous, hairy on the midrib 
and 8 pairs of ascending prominulent nerves, scabridulous to the touch; the pairs of 
leaves are respectively 2%, 12 in. long, 6, 11 lines broad, on slender, patent, puberulous 
petioles 4-6 lines long; flowers solitary in the opposite axils, on slender pedicels 
4-6 lines long, each bearing about 3 pairs of opposite bracteoles; sepals linear, acute, 
very membranaceous, subglabrous, or ciliolate, 24 lines long, 3 line broad, with alternate 
acute inner scales; tube of corolla 33 lines long; segments oblong, 34 lines long, 2 lines 
broad, with simple dextrorse convolution ; rest as in the other species. Miquel attributes 
to it 2 follicles, erect, subtorulose, acute at each end, 3 in. long. 
5. ELYTROPUS SPECTABILIS, nob.: Echites spectabilis, Stadelm. Bot. Zeit. 1841, Beibl. 44; A. DC. 
l. c. p. 462; Müll. l c. p. 153. In Amazonas, Rio Negro et Rio Solimoés ; in regione Japurensi : 
non vidi. 
A plant evidently congeneric with the Echites ptarmica of Póppig. It has a stoutish, 
terete, subtomentous trunk, with climbing thickish branchlets covered with fuscous 
pilose hairs, and with distant internodes; the opposite large leaves are oblong, slightly 
cordate at the base, with a short narrow acumen, membranaceous, of a dark olive hue, 
with subrevolute margins, opake on both sides, glabrous, with 10 pairs of divaricate 
nerves arcuately conjoined near the margins, without any apparent veins, 10-12 in. long, 
4-54 in. broad, on petioles 12-2 in. long; inflorescence in opposite axils, as long as the 
petioles; peduncle 3 lines long, supporting 8 slender pedicels 52-74 lines long, covered 
with from 16 to 20 linear-subulate bracts 3 lines long, the last 5 alternate with the sepals, 
all clothed with velvety tomentum, and terminated by a single flower, 2-24 in. long; 
sepals linear-subulate, pubescent, 4-5 lines long, each with an internal basal tridentate 
scale; corolla white, with a cylindrical tube constricted below the middle, with a border 
