ON SOUTH-AMERICAN APOCYNACER, 135 
segments elliptic, somewhat shorter than the tube; lobes. of disk obtusely oblong, as long 
as the 2 ovaries. 
4. STIPECOMA PULCHRA, nob.: scandens, ramis crassis, demum glabris, ramulisque fistulosis, teretibus, 
validis, in axillis compressis et dilatatis, dense ochraceo- et floccoso-tomentosis : foliis profunde 
peltatis, late ovatis, imo rolundatis et undulatis, apice in acumen brevissimum acutum subito con- 
strictis, marginibus integris, subretusis, revolutis, chartaceis, supra profunde viridibus, glabris, 
opacis et rugulose granulatis, nervis basalibus 7 radiantibus, lateralibus utrinque 6, patentim 
divaricatis, cunctis intra marginem arcuatim nexis, subimmersis, eveniis, subtus ochraceo- 
tomentellis, costa valida, nervis prominentibus transversim venosis ; petiolis crassis, teretibus, 
longiusculis, ochraceo-tomentosis, imo sœpe gyratim tortis: inflorescentia insigni, laterali, valde 
elongata, undique fulvo-tomentosa; pedunculo crasse tereti, fasciculis 2-4 remotis ramulosis in- 
structo; ramulis plurimis, congestim multifloris, dense imbricatim bracteatis; bracteis magnis, 
elliptico-oblongis, acutis, inferioribus majoribus sæpe foliola simulantibus; pedicellis ex axillis 
bractearum enatis, validis, et eis zequilongis, imo 2-bracteolatis, bracteolis lanceolatis paullo brevi- 
oribus; sepalis lineari-oblongis, acutis, membranaceis, margine undulatis, obsolete pilosis, intus 
squamulis paucis minutissimis donatis; corolla glabra; tubo cylindrico sepalis sesquilongiore, 
medio valde constricto ; segmentis insequilateri-oblongis, acutis, expansis, æstivatione dextrorsum 
convolutis ; staminibus ad constrictionem tubi insertis, inclusis; filamentis subbrevibus, carnosulis ; 
antheris corneis, apice cuspidatis, imo divergenter biaristatis; disco 5-lobo, lobis carnosis virides- 
centibus, rotundatis, imo connatis, ovaria 2 rotundata circumcingentibus; stylo brevi, tenui; 
clavuncula crassa, cylindrica, 5-sulcata, glutinosa, et imo membrana lata horizontali munita, stig- 
matibus 2 minimis. Rio de Janeiro, v. v. ad Morro Flamengo, et sicc. in herb. meo (3877). 
I found this fine species in flower in 1837. The branches are 4 in. thick, have axils 
9 in. apart; leaves 51-7 in. long, 31-51 in. broad, the insertion of the petiole 2—1 in. 
above the base, the acute acumen 4 in. long and broad, the petioles 4-5 in. long; the 
ripe axillary panieles are 51 in. long, with about 6 branches, peduncle bare at the base 
for 1 in., branches 1 in. long, bearing upwards many crowded flowers; bracts many, 
6 lines long, 2 lines broad; pedicels 4 lines long; sepals 6 lines long; tube of corolla 
9 lines long; segments 6 lines long, 3 lines broad; anthers 3 lines long; disk and 
ovaries 1 line long; style 3 lines long, clavuncle $ line long. 
A drawing of this species, with its floral analysis, is shown in Plate XVIII. 
5. Sripecoma mucronata, nob. : Echites peltata, Müll. in parte (non Velloz), /. c. p. 159, tab. 53. fig. 2 
(semen) : scandens, ramulis teretibus, crassiusculis, fistulosis, adultis subglabris, junioribus fulvo- 
tomentosis, axillis dilatatis paullo compressis: foliis profunde peltatis, vatis, imo orbiculatis, 
undulato-subplicatis, apicem versus rotundatis et in acumen. lineare premia obtuse mucro- 
natis, marginibus vix revolutis, chartaccis, supra olivaceo-viridibus, opacis, sparse pubescentibus, 
nervis basalibus 7 radiantibus, lateralibus utrinque 5 paullo divergentibus marginem versus 
arcuatim nexis, paullo prominulis, reticulato-venosis, subtus ochraceis, densius tomentosis, 
costa nervisque rubescentibus prominentibus ; petiolis crassis, tomentosis, sensim. deflexis, pel- 
tatim affixis: racemis axillaribus, quam folium dimidio brevioribus, fulvo-tomentosis d pedunculo 
alternatim 6-floro, bracteato; pedicellis remotiusculis, sub medium 2-bracteolatis ; floribus me 
culis; sepalis linearibus, obtusulis, nervoso-membranaceis, glabris, pedicellum fere coge 
intus squamulis 3 acutis singulatim munitis ; corolla glabra; tubo crassiusculo, cylindrico, me io 
constricto, ad faucem subito ampliato; segmentis magnis, oblongis, subtruncatis, insequilateris 
