ON SOTJTH-AMEEICAN APOCnNTACEiE. 65 



Anacampta, nob. : Tabernamontana (in parte) auct. : Sepala parva, rarius majora, oblonga, erecta, im- 

 bricata, intus squamula multifida munita. Corolla tubulosa; tubus cylindricusj supra medium 

 pauUulo ampliatus ; segmenta tubo pauUo brevioraj plus minusve curvata^ ad basin pro tertia parte 

 subrhomboidea, pro reliqua parte lineari-oblonga^ bic in sestivatione subito introflexa, apicibus 

 obtusulis intra faucem protensis. Stamina inclusa; filamenta brevissima, ad constrictionem tubi 

 inserta; antheree lineares, conniventes, cuspidatse, imo furcis 2 acutis subbrevibus armatse. Discus 

 carnosulus, cylindricuSj 5-costatuSj margine 5-crenatusj glaber vel bispidulus, ovariis pauUo brevior. 

 Ovaria 2, oblonga, libera, ssepe pilosa ; stylus subbrevis ; clavuncula incrassata, oblonga, imo membraua 

 crispata peltata donata ; stigmata 3, breviter subulata, terminalia. Folliculi 2, dolabriformi-oblongi, 

 subacuti, valde compressi, laeves, divaricati, ventre arcuato debiscentes. Semina subpauca, ovata, 

 compressa, dorso crebre striata, asperula, ventre late sulcata at ibi hilo centrali notata, funiculo 

 carnoso semivestita aut suspensa. 



Arbusculse plerumque Brasiliana, scepius glaberrimce ; rami validiusculi, angulati : folia opposita, 

 plerumque majuscula, oblonga, glaberrima, coriacea aut rigide chartacea ; petioli crassi, supra plani, 

 imo angulosi, striati, superne versus basin cucuUa concava muniti, et illic profunda fossati, ad 

 nodos linea transversa nexi ; paniculae laterales, subbreviores, pedunculati, apice approsoimatim ramosce, 

 ramis flores 3-4 breviter pedicellatis gerentibus. 



1. Anacampta congesta, nob.: Tabernmmontana congesta, Benth. MS.; Tabernamontana rubrostriolata, 

 Miill. I. 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 iu preference to the MS. name of 

 Martius, employed by Miiller, 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, 4^-7 5 in. long, 2|-4ij in. broad, on stout 

 broad petioles 3 lines long, channelled and deeply fossate at the base, and conjoined 

 across the node by a transverse ridge ; panicle lateral and solitary at the axUs, 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 haK as long, dolabriform, sinistrorsely convoluted in aestivation ; 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, l|-lj in. long, 

 3| 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. : Taberncemontana angulata, Mart. ; Miill. /. c. p. 72, tab. 23. In Ama- 

 zonas, prov. Para : non vidi. 

 A well-marked cognate species, with stout dichotomous branchlets, deeply angular- 



K 



