ON SOUTH-AMERICAN APOCYNACEX. 217 
bifid peduncle; sepals oblong, erect, concave; tube of corolla cylindrical, longer than 
the calyx, with a prominent ring in the mouth, concave beneath, apparently without 
appendages ` segments obliquely roundish, emarginate, rotate; disk of 5 small ovate 
lobes. i 
From its bifid peduncle and flowers without faucial appendages, it probably belongs 
to this group. 
22. TEMNADENIA QUINQUANGULARIS, nob. : Echites quinquangularis, Jacq. Amer. p. 32, tab. 25; A. DC. 
l.c. p. 468: Prestonia quinguangularis, Spr. Syst. i. p. 637. Ad Carthagena: non vidi. 
A climbing species, with scabridulous branches, the cdo 54 in. apart; leaves opposite, 
elliptic- obovate, obtuse at the base, subacute at the reflexed summit, nerves divergent, 
243 in. long, 13-13 in. broad, on patent slender petioles 8 lines long; raceme lateral, 
not quite as TA as the leaves; peduncle bare for 1 in., bearing above 12-16 subalter- 
nate flowers on reflexed pedicels 3 lines long ; sepals aeuminate, reflexed at the apex, 
2 lines long; corolla greenish-yellow, with a white cylindrical tube, broader at its base, 
9 lines long, pentagonal above, and somewhat thickened in the mouth, without any 
apparent appendages; segments obovate, obliquely truncate, 4 lines long; stamens in- 
serted above the inflated portion of the tube on a pilose ring; unthers'laneeolately 
acuminate, hastate at the base, cohering in a cone, which fills the upper portion of the 
tube; disk 5-lobed, as long as the ovaries. 
De Candolle considered this species quite foreign to Prestonia, and not conformable 
with Hemadictyon; the flowers were regarded by him as agteeing with those of his 
Echites cordata (Angadenia nitida, ante, p. 177). 
Mrrozus*. 
An extensive natural group of plants, one of the most uniform in its characters 
among the Echitee, easily recognizable by their extremely slender branchlets. They 
disagree utterly with Anisolobus and Amblyanthera, to which some of the species have 
been referred by Müller. The Zchites funiformis of Velloz may be regarded as the 
type. The almost filiform branchlets are dilated at the somewhat remote nodes, and 
there furnished with 2 small caducous stipules; the leaves are opposite, generally rather 
small, glabrous, oblong, often cordate at the base, pointed at the summit, upon short, 
slender petioles ; the inflorescence is lateral, upon a long or shorter peduncle, bearing 
several alternate flowers on minutely bracteolate pedicels ; calyx small; corolla salver- 
shaped, rather small or of moderate size, with dextrorse convolution. Tts chief peculiarity 
is its disk, which is tubular, submembranaceous, 5-grooved, entire on the margin or 
arched between the grooves, quite or nearly concealing 2 free ovaries. The fruit consists 
of 2 long, very slender follicles, smooth, often torulose, either free or conjoined at the 
apex; seeds with a simple sericeous coma. 
Mrrozus, nob. Calyx parvus ; sepala 5, acuta aut obtusa. Corolla mediocris ; tubus infra medium eylin- 
dricus, superne amplior ; segmenta oblique ovata, tubo dimidio breviora, in estivatione dextrorsum 
$ From píros (filum), ¿zos (ramus), from its funiform branches. ` á 
F 
