ON SOUTH-AMERICAN APOCYNACEA. 65 
ANacAMPTA, nob.: Tabernemontana (in parte) auct.: Sepala parva, rarius majora, oblonga, erecta, im- 
bricata, intus squamula multifida munita. Corolla tubulosa; tubus cylindricus, supra medium 
paullulo ampliatus ; segmenta tubo paullo breviora, plus minusve curvata, ad basin pro tertia parte 
subrhomboidea, pro reliqua parte lineari-oblonga, hic in sestivatione subito introflexa, apicibus 
obtusulis intra faucem protensis. Stamina inclusa; filamenta brevissima, ad constrictionem tubi 
inserta; anthere lineares, conniventes, cuspidatz, imo furcis 2 acutis subbrevibus armate. Discus 
carnosulus, cylindricus, 5-costatus, margine 5-crenatus, glaber vel hispidulus, ovariis paullo brevior. 
Ovaria 2, oblonga, libera, szepe pilosa ; stylus subbrevis ; clavuncula incrassata, oblonga, imo membrana 
 erispata peltata donata; stigmata 2, breviter subulata, terminalia. Folliculi 2, dolabriformi-oblongi, 
subacuti, valde compressi, leves, divaricati, ventre arcuato dehiscentes. Semina subpauca, ovata, 
compressa, dorso crebre striata, asperula, ventre late sulcata et ibi hilo centrali notata, funiculo 
carnoso semivestita aut suspensa. 
Arbuseule plerumque Brasiliane, sepius glaberrime; rami validiusculi, angulati: folia opposita, 
plerumque majuscula, oblonga, glaberrima, coriacea aut rigide chartacea; petioli crassi, supra plani, 
imo angulosi, striati, superne versus basin cuculla concava muniti, et illic profunde fossati, ad 
nodos linea transversa neri; panicule laterales, subbreviores, pedunculati, apice approximatim ramose, 
ramis flores 3-4 breviter pedicellatis gerentibus. 
1. ANacaMPTA CONGESTA, nob.: Tabernemontana congesta, Benth. MS.; Tabernemontana rubrostriolata, 
Müll. /. c. p. 71, tab. 21. fig. 1. In Amazonas: v. s. in hb. meo et alior. Santarem (Spruce 232). 
Mr. Bentham's specific name is here adopted in preference to the MS. name of 
Martius, employed by Müller, which does not apply to the present plant, and which 
probably was given by Martius to some undescribed species. It has stout, dichotomous, 
subfistulose branchlets, angularly sulcate, and of a yellowish colour: it has large 
obovate leaves, rounded at the base and suddenly narrowed along the petiole, obtuse 
towards the summit, and there constricted into a blunt, short acumen, or, by imper- 
fection, round and emarginate there; they are firmly chartaceous, with subrevolute 
margins, green above, sulcate on the midrib and divergent nerves, yellowish opake below, 
with prominent costa and reddish nerves, 44-74 in. long, 23-44 in. broad, on stout 
broad petioles 8 lines long, channelled and deeply fossate at the base, and conjoined 
across the node by a transverse ridge; panicle lateral and solitary at the axils, 6 lines 
long, bearing several congested flowers on slender pedicels bracteolated at their base, 
2 lines long; sepals ovate, ciliolated, imbricated, 1 line long, having within several 
lanceolate scales; tube of corolla 7 lines long, staminiferous in the middle, border- 
segments half as long, dolabriform, sinistrorsely convoluted in estivation; disk angular, 
adnate to the ovaries for half their length; fructiferous pedicel much stouter, 5 lines 
long, supporting 2°gibbous follicles acutely recurved at the summit. These are not 
yet matured in the specimen; they are smoothly opake, pale brown, 12-14 in. long, 
31 lines broad, and contain about 16 unripe, oval compressed, striated seeds, attached 
in the middle of the ventral face to a fleshy funicle. 
Drawings of this species, in flower and in fruit, are given in Plate IX. B. 
2. ANACAMPTA ANGULATA, nob.: Tabernemontana angulata, Mart. ; Müll. l. c. p. 72, tab. 23. In Ama- 
zonas, prov. Pará: non vidi. 
A well-marked cognate species, with stout dichotomous branchlets, deeply angular- 
K 
