ON SOUTH-AMERICAN APOCYNACE, 89 
A. DC. Prodr. viii. 379. In Brasilia: v. v. in montibus Organensibus, et s. in herb. Mus. Brit. 
loc. cit. (Gardner 5547). 
I found this species in 1838, in the Organ Mountains, where it forms a shrub 10 feet 
high, with dichotomous branchlets which are shining, darkly rufescent, striated, fistulose, 
and compressed at the axils; leaves lanceolate or oblong-lanceolate, gradually acute at 
both ends, with subrevolute margins, chartaceous, deep green above, subnitid, somewhat 
granular, with semi-immersed curving nerves, below pallidly flavescent, very opake, with 
prominent midrib and reddish yellow prominent nerves, having a porous gland in their 
axils; they are 2}-3? in. long, 2-14 in. broad, on dark channelled petioles 2-3 lines 
long. Cyme 3 in. long, solitary at each node, or in the dichotomy of the branches, 
glabrous; a very short peduncle, thickened at the apex, with scale-like bracteoles, 
bearing about 12 flowers; pedicels crowded, slender, declinate ; sepals small, ovate, sub- 
mucronate, with membranaceous margins, furnished within with alternate entire or 
2-dentate scales; tube of corolla slender, narrowed above, with 5 small fleshy glands in 
its thickened mouth, 3 lines long; segments oblong obtuse, pubescent at their base, 
dextrorsely convoluted, 4 lines long; stamens included and inserted a little above 
the middle of the tube; anthers curvingly sagittate at their base, acute and pilose 
at the apex; disk of 5 ovate erect lobes, pilose at the apex, and somewhat shorter than 
the ovaries. 
10. MALOUETIA ARBOREA, nob.: Echites arborea, Vell. Flor. Flum. p. 114, Icon. iii. tab. 47: Secondatia 
arborea, Müil. l. c. p. 110: Tabernemontana leta, A. DC. in parte (non Mart.), Prodr. viii. 364, In 
Brasilia, prov. Rio de Janeiro, Fazenda de Mendanha (Velloz) : non vidi. 
A species unquestionably belonging to this genus, and differing little from M. glan- 
dulifera, chiefly in its larger leaves and longer peduncles. Like most other species, it is 
lactescent, with an erect trunk 8 in. in diameter, with its primary branches dichoto- 
mous, spreading, 2 lines thick; branchlets 1 line thick, with axils 13-23 in. apart; 
leaves opposite, elliptic, acute at both ends, very slender nerves above, the midrib and 
nerves below being stouter, prominent, with a porous gland in their axils; they are 
4-41 in. long, 11-12 in. broad, on petioles 2-3 lines long; inflorescence solitary at each 
node, densely S-flowered; peduncle 14 line long; pedicels very slender, 5 lines long; 
sepals acute, 13 line long; tube of corolla cylindrical, narrowed above, 5 lines long, with 
5 glands in the mouth; segments subequilateral, of a whitish yellow colour, 4 lines long, 
14 line broad; stamens inserted below the mouth and partly exserted ; 2 follicles stoutly 
terete, recurvingly divaricate, lactescent when cut across, 4 in. long, 4 lines thick; seeds 
many, subimbricated, glabrous, linear-oblong, very compressed, with incurving margins, 
peltately attached to the inflexed placentee : this is clearly shown by the inclined section 
in Velloz’s drawing. The loose seed depicted in a separate figure, with a long apical 
coma, has been placed there in mistake by the Paris lithographer; and this perhaps 
led Dr. Miiller to refer the plant to Secondatia; but it belongs most certainly to 
Malouetia. Bentham and Hooker (Gen. ii. 723) agree that it should be excluded from 
Secondatia. 
N 
