92 ON SOUTH-AMERICAN APOCYNACEAL. 
leaves, bearing 2 to 4 flowers 14 in. long, on bracteolated pedicels; sepals smooth, 
elliptic oblong, obtuse, with undulate membranaceous margins, deeply imbricated, the two 
interior much narrower; corolla salver-shaped, yellow; tube cylindrical, twisting, 1 in. 
long, with expanded segments inequilaterally obovate and obtuse, shorter than the tube; 
anthers sagittate, seated in the middle of the tube; disk fleshy, investing 2 ovaries. 
Prof. De Candolle rightly placed this species in Malouetia, as the kind of inflorescence ` 
here indicated is unknown in any plant of the Zabernemontanee, but is not uncommon 
in Malouetia: the structure of the flower is that of this genus. 
18. MALOUETIA TETRASTACHYA, nob. : Tabernemontana tetrastachya, H. B. K. iii. 227 ; A. DC. l. c. p. 368. 
In Nova Granada: non vidi. 
A lactescent tree, with smooth, terete branches; leaves oblong, narrowly acute at the 
base, acuminate, with obsoletely undulate or repand margins, membranaceous, nerves 
remote, prominent beneath, 6-7 in. long, 2-23 in. broad, on channelled petioles 6 lines 
long, their margins conjoined across the node by a transverse ridge; cymes opposite and 
interpetiolar, much shorter than the leaves; peduncle dichotomously divided into 4 
approximated, divaricated, many-flowered spikes; flowers the size of those of jessamine, 
on close pedicels 3 lines long, bracteolated at the base. This species quite conforms 
with M. riparia in the character of its inflorescence and structure of its flowers. 
19. MALOUETIA JASMINOIDES, nob.: Tabernemontana jasminoides, H. B. K. iii. 225; A. DC. l c. p. 379. 
In Venezuela, prope Cumana : non vidi. 
This species, with flowers like those of jessamine, evidently belongs to this genus, as 
Kunth suspected; its opposite, oblong leaves, acute at the base, subacuminate, sub- 
membranaceous, are 3-4 in. long, 14-18 lines broad, on petioles 3 lines long; in a 
specimen from 'Purbaco (perhaps another species) they are 5-6 in. long, 20-21 lines 
broad, on petioles 6 lines long; peduncle 6-15 lines long, bearing several flowers on 
slender pedicels 6-7 lines long; sepals ovate, 1 line long; tube of corolla 4 lines long, 
swollen at the base, the segments being expanded, obovate-oblong, 5 lines long; stamens 
placed in the mouth of the tube, linear, biaristate at the base; the 2 ovaries surrounded 
by the disk; style slender; clavuncle adhering to the anthers. 
20. Maxovetia CuBana, A. DC. Prodr. viii. 379: Malouetia retroflexa, Müll. Linn. xxx. 408; Griseb. Fl. 
Br. W. Ind. p. 412. In Antillis: Cuba, et ins. San Vincente (Guilding). 
The descriptions of De Candolle and Müller accord so well together that they denote 
identically the same species. The leaves are elliptic-oblong, acute at the base, obtusely 
acuminate, 3-4 in. long, 10-15 lines broad, on petioles 2-3 lines long; the peduncle is 
3 lines long, bears 4 to 7 flowers, on slender pedicels 8-10 lines long ; sepals subulately 
lanceolate, reflexed at their apex, 2 lines long; tube of corolla 4 lines long, constricted 
in the middle; the segments, as large as the tube, are linear, acute, glabrous outside, 
puberulous within; stamens partly exserted; anthers dorsally hispidulous; disk of 
5 erect lobes; ovaries 2, hispidulous at the apex; follicles 12 in. long, 4 lines broad, 
obtusely attenuated. 
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