50 ON SOUTH-AMERICAN APOCYNACEZ. 
A species very distinct from the preceding: it is arborescent, 18 feet high, lactescent, 
the axils of the branchlets 2-5 in. apart; leaves 33-7 in. long, 11-2 in. broad, on petioles 
1-2 lines long; raceme 14 in. long; pedicels 3-4 lines long; sepals 14 line long; corolla 
in bud, tube 44 lines long, its terminal knob 24 lines long, inflected portions of seg- 
ments 54 lines long. According to Spruce the tube is white, the segments and mouth 
purpurascent (not yellow). 
3. BONAFOUSIA LATIFLORA, nob.: Peschiera latiflora, Benth. MS.: Tabernemontana flavicans, Mill. 
(non R. & Sch.) Z c. p. 77. In Amazonas, v. s. in hb. meo et Mus. Brit. Santarem (Spruce 
256). 
Evidently a very different plant from that described by Rómer and Schultes, which 
has divaricately dichotomous branches, with flowers on a long peduncle. It has 
slender divaricate branches; leaves opposite, rarely verticillately ternate, oblong, acute 
at the base, with a rather long obtuse acumen, pallid and yellowish below, with sub- 
prominulent midrib and divaricated nerves, which are reddish; the leaves are unequal 
in each axil, 24 and 24 in. long, 1 in. and 4% in. broad, on slender petioles 2-3 lines long; 
the upper leaves are smaller, the lower ones larger and more oval. The peduncle, seated 
in the dichotomy of the branches, is about 3 lines long, bearing about 4 flowers on sub- 
umbellate pedicels 4 lines long; sepals acute, 1 line long; tube of corolla very narrow 
and cylindrical, a little inflated below the mouth, 10 lines long, segments linear oblong, 
7 lines long, 2 lines broad, expanded in «estivation, inflected near the middle, the deflected 
summits reaching the mouth, sinistrorsely convoluted; stamens included in the ventri- 
cose portion of the tube; anthers 2-aristate at the base, acuminate at the summit; disk 
membranaceous, adnate, 4 the length of 2 pointed ovaries; style filamentous, reaching 
the stamens; clavuncle incrassated, oblong, 5-grooved, with a basal umbraculiform 
appendage; stigmata short. 
4. BONAFOUSIA OBLONGIFOLIA, nob.: Tabernemontana oblongifolia, A. DC. l. c. p. 368; Müll. J. c. p. 74 
In Brasilia: v. s. in hb. Mus. Brit. Jacobina, prov. Bahia (Blanchet 951, et, sec. DC., Blanchet 
2358). 
Branchlets slender, pale brown, striolated, with axils 12-21 in. apart; leaves very 
patent, lanceolate oblong, somewhat heterophyllous, acute and subinœquilateral at the 
base, acutely acuminated at the summit, chartaceous, pale green above, with semi- 
immersed nerves, paler and opake beneath, with a stout midrib and yellow prominulent 
nerves, 3 and 54 in. long at each node, 14-14 in. broad, on slender petioles 4-5 lines 
long; panicle terminal in the dichotomy of the branchlets; peduncle slender, 4 lines 
long, the 2 branches at its apex 2 lines long; pedicels few, slender, 6 lines long; oblong 
sepals obtuse, submembranaceous, spotted with yellow dots, 13 line long ; tube of corolla 
cylindrical, ventricose in the middle, 9 lines long, its roundish oblique segments being 
6 lines long, infolded sinistrorsely in the bud, the extremities descending into the mouth 
of the tube; stamens seated in the lower contraction of the tube, included in the swollen 
portion, emanating from as many pilose lines; 2 oblong, pointed, adpressed, smooth 
ovaries, embraced at their base, for 4 of their length, by a very thin disk. 
