80 ON SOUTH-AMERICAN APOCYNACEX. 
trorsely) in sestivation; they differ also in the position of the stamens, which are placed 
in the upper portion of the tube (not in the lower), and in the peculiar form of its disk, 
which, though distinct, is easily overlooked. 
ANAaRTIA, nob.: Tabernemontane sp. auctorum. Sepala 5, parva, seepius lanceolata, intus ad basin 
squamulis 2-3 minimis bidentatis munita. Corolla hypocrateriformis ; tubus tenuiter cylindricus, 
supra medium paullo inflatus, fauce constrictus ; segmenta 5, lineari-oblonga, tubo subbreviora, ad 
medium subito introrsum flexa, et in :stivatione dextrorsum convoluta, demum expansa. Stamina 
subsessilia, supra medium tubi in parte ventricosa inclusa; filamenta brevissima; anthere tenuiter 
lineares, subdiscretee, imo breviter biaristatz, apice membrana acuta terminate. Discus cylindricus, 
adnatus, truncatus, hyalinus, vix distinguendus. Ovaria 2, conice oblonga, disco 2plo longiora. 
Stylus filiformis; clavuncula incrassata, breviter oblonga, 5-sulcata, imo appendice membranacea 
munita; stigmata 2, breviter subulata. 
Frutices Americe callidioris; rami graciles, sepius dichotomi ; folia opposita in quoque nodo valde 
heterophylla, lanceolata aut oblonga, breviter petiolata; racemi axillares, breves; pedunculus sub- 
brevis, crebriter cicatricosus, et e floribus lapsis sepe depauperatus ; flores persistentes pauci, pedicellati. 
1. ANARTIA Meyers, nob.: Tabernemontana undulata, Mey. (non Vahl) Esseq. p. 135; A. DC. Le 
p. 368: Tabernemontana Meyeri, Don, Dict. iv. 89. In Guiana: v. s. in hb. Mus. Brit. (sine flore) 
Acarouari (Sagot 391, sub T. oblongifolia, DC., var. angustifolia). 
A species certainly different from Vahl's plant, as its leaves are not undulated, its 
sepals unequal, and the corolla pubescent in the throat, and its leaves are in very 
unequal pairs. It is a shrub with subflexuous dichotomous branches, the branchlets 
compressed, with remote axils. The leaves are oblong, acute at the base, constricted at 
the summit by an obtuse linear acumen, firmly chartaceous, the margins somewhat 
revolute, of a very pale green above, opake, with immersed patent nerves arcuately con- 
joined within the margin, yellow and opake below, with immersed nerves, the unequal 
pairs being 4 and 2 in. long, 7 and 4 lines broad, on channelled petioles 3 and 14 line long: 
in the upper axils they are somewhat smaller, and in the same proportions. Meyer says 
the inflorescence is terminal on a short peduncle, bearing 3 or 4 flowers on short pedicels, 
each with a basal ovate obtuse concave bracteole; sepals unequal; corolla 1 in. long; 
tube cylindrical, ventricose below the mouth, which is pubescent; segments oblique, 
linear oblong, obtuse; anthers included below the mouth of the tube; disk not seen 
(said to be none); ovaries conical; style simple; clavuncle incrassated, with a basal 
membranaceous appendage. These characters are quite those of Anartia. 
2. ANARTIA RECURVA, nOb.: Tabernemontana recurva, Sagot, MS. (non Roxb.): ramulis tenuissimis, 
dichotomis, pallide brunneis, compressis, striolatis, stipula utrinque interpetiolari ad nodos rotun- 
data adpressa membranacea donatis: foliis valde heterophyllis, patentibus vel deflexis, lanceolato- 
oblongis, utrinque sensim valde acutis, marginibus subrevolutis, subchartaceis, supra pallide viridi- 
bus, opacis, ad costam sulcatis, nervis immersis, subtus opace flavicantibus, costa flava prominente, 
nervis rufulis prominulis ; petiolis tenuissimis, canaliculatis, stria transversali basi conjunctis, limbo 
12plo brevioribus: paniculis in nodis solitariis lateralibus, circa 12-floris ; peduneulo bifurcato ; 
sepalis parvis, acutis, intus squamula parva munitis ; corollz hypocrateriformis tubo cylindrico, infra 
faucem inflato ; segmentis oblongis, medium versus introflexis, in «estivatione dextrorsum convolutis ; 
filamentis brevibus, supra medium tubi insertis; antheris tenuibus, tubi parte ventricosa inclusis, 
