ON SOUTH-AMERICAN APOCYNACEZ. 19 
opposite leaves, a short axillary raceme with few flowers of rather small size, a calyx 
of 5 unequal oblong sepals, of which 2 are exterior, broader and twice the length of the 
others, all imbricated; within, at the base, are numerous minute scales, so united as to 
appear like a ring denticulated on its margin; the corolla has a short tube, with a 
border of 4 or 5 oblong fleshy suberect segments, dextrorsely convoluted in sestivation, 
the whole marked by many pustular elevations; stamens alternate with the segments, 
fixed in the base of the tube,—the filaments being also pustular, the anther-cells parallel 
placed upon a connective bearing on its apex a large gland; a disk of 5 free erect lobes, 
surrounding the base of an oblong 2-celled ovary crowned by a short thick style 
indusiate at its apex and enclosing 2 rounded stigmata as in Ambellania. 
PomPHIDEA, nob.: Flores 5-, rarius 4-meri: sepala 5 (raro 4), lineari-oblonga, inzequalia, quorum 2 ex- 
teriora duplo longiora et latiora, imbricata, erecta, crassiuscula, intus squamulis numerosis mem- 
branaceis parvis acutis in annulum confluentibus: corolle tubo sepala majora sequante, cylindrico, 
segmentis tubo vix «equilongis, oblongis, subacutis, «qualibus, crassis, rigidis, glabris, suberectis, 
eestivatione paullo dextrorsum convolutis, cum tubo utrinque pellucide pustulatis. Stamina seg- 
mentis alterna, imo tubi inserta; filamenta tubo «equilonga, linearia, late complanata, utrinque 
pustulata, marginibus dense ciliato-pilosis; anthere parallele 2-lobe, lobis lineari-oblongis, dorso 
affixis, introrsis, rima longitudinali dehiscentibus; connectivum filamento continuum, excurrens, 
pustulatum, apice subito constrictum et in glandula majuscula pellucida terminatum. Discus 
5-lobus, lobis liberis, erectis, lineari-oblongis, carnosis, apice crenulato-truncatis, ovario duplo 
longiori cireumpositis. Ovarium oblongum, tubo corolle brevius, angulatum, striatum, profunde 
2-suleatum, 2-loculare. Stylus subteres, ovario paullulo angustior et zequilongus, apice indusiatim 
excavatus et incrassatus, truncatus ; stigma 2-glandulosum, cavitati semiimmersum. Fructus ignotus. 
Arbor Jamaicensis: folia opposita, oblongo-ovata, breviter petiolata ; racemus axillaris, brevis, pedun- 
culatus, pauciflorus; flores subparvi, pedicellati. 
l. PomPHIDEA SWARTZIANA, nob.: folis oppositis oblongis, imo obtusis, apice in acumen subacutum 
constrictis, integris, glabris, chartaceis, utrinque opacis, minutissime pellucido-punctulatis, et 
granulato-rugulosis, supra flavide viridibus, nervis arcuatim nexis subimmersis, subtus ochraceo- 
ferrugineis ; petiolo tenui, limbo 30plo breviore: racemo axillari, pedunculato, abortione 2-floro ; 
floribus subparvis, pedicellatis, fuscis; sepalis extus pilosis et pustulatis, squamulis internis basalibus 
albis. In Antilles: v. s. in herb. Mus. Brit. Jamaica (Swartz). 
No particulars are given by Swartz: the branchlet is slender, rugulose, with axils 1 in. 
apart, it is exstipulate: the leaves are 22—3$ in. long, 11-13 in. broad, on a very slender 
petiole 1 line long; the axillary peduncle is 4 lines long, on the summit of which only 
2 flowers remain on pedicels, each 13 line long: the 2 outer sepals are 23 lines long, 
1 line broad, the 3 inner ones being 14 line long, 3 line broad; the tube of the corolla is 
21 lines long, 1 line broad, its segments 23 lines long, 2 line broad: lobes of disk 4 line 
long; ovary superior, $ line long; style $ line long. 
A note in pencil upon the specimen states, “ Sepals 4-5; petals 45; fruit a mecs 
capsule:" the former are probably as much in error as the latter, which cannot be a 
true statement; for I found the ovary to be 2-celled, and this is confirmed by the 2-lobed 
stigma. 
A drawing to illustrate this species d its floral analysis is given, Plate I. D. 
D2 
