228 ON SOUTH-AMERICAN APOCYNACEZ. 
6. Seconpatia Peruviana, Däpp. Nov. Gen. iii. p. 71, tab. 281. In Peruvia, ad Cuchero: non vidi. 
This is described as a climbing plant, hanging from the summit of trees 30-40 feet 
high, having many branches 3-4 in. thick, intertwining, covered with a dark rough 
bark. Its branchlets are slender, straight, smooth, their axils scarcely dilated, 13-2 in. 
apart, bearing 2 extremely small stipules; the leaves are elliptic, broadish at the base, 
and suddenly narrowed upon the petiole, acutely acuminate, subundulate on the 
margins, membranaceous, smooth above, glaucous beneath, with fine divergent nerves 
and transverse veins, 4 in. long, 2 in. broad, on slender petioles 5 lines long; panicles 
opposite, axillary, shorter than the leaves; peduncle slender, 1 in. long, its summit 
divided into 2 slender branches, with a solitary pedicellate flower in the dichotomy, 
each branch 14 in. long, bearing 6-8 alternate flowers on bracteolate pedicels 13 line 
long, laxly disposed ; sepals acutely ovate, 1 line long; tube of corolla stoutishly cylin- 
drical, 9 lines long, 5-suleate, narrowed in the middle and contracted in the mouth, 
which is there furnished with a pilose ring; segments obtusely oblong, inequilateral, 
dextrorsely convolute, 24 lines long; stamens seated a little above the base of the tube; 
anthers acuminate, divided at the base into 2 acute subdiverging prongs; style ex- 
tremely short, stoutish; clavuncle incrassate, claviform, with a membranous basal 
appendage ; disk urceolate, 5-lobed on margin, shorter than the 2 unilocular ovaries; 
follicles 2, oblong, very divaricate, in an immature state plano-convex, containing 
numerous imbricate seeds, too much injured by insects for their structure to be 
ascertained. 
All these characters seem to favour the conclusion of Póppig, that the plant belongs 
to Secondatia. 
HAPLOPHYTON. 
A genus established by Prof. De Candolle in 1844 (Prodr. viii. p. 412), upon a Mexican 
plant in Pavon's herbarium and a drawing of the same by Mocinno et Sesse, named 
Echites cimicifuga. It is a shrubby plant, subherbaceous, with very slender terete, erect, 
dichotomous, puberulous branches; leaves subopposite, subdistichous, narrowly ovate- 
acuminate, thinly membranaceous, puberulous, with hairs arising from vesicles, glandular 
in the axils of the oblique nerves, veinless, 2-23 in. long, 8-10 lines broad, on petioles 
1-13 line long; flowers geminate in the dichotomies of the branchlets, on puberulous 
pedicels three times as long as the petioles ; sepals linear-acuminate, 2 lines long, 
erect, without inner scales, subpilose outside; corolla hypocrateriform, 9 lines long, pale 
yellowish; tube 4 lines long, cylindrical, broader in the middle, glabrous in the mouth 
and at the base, otherwise internally pilose ; segments oblong-obovate, more than twice 
the length of the tube, simply sinistrorsely convolute ; stamens inserted in the middle 
of the tube on slender filaments; anthers linear, obtuse, shortly and roundly bilobed 
at the base; disk none; style filiform ; stigma capitate, 2-lobed; follicles 2, narrowly 
terete, erect, straight, striate, at first subpuberulous, 2 in. long; seeds many, linear- 
oblong, crowned with a coma of equal length. 
The specimen is from Tehuantepec (Andrieux 250). 
