252 ON SOUTH-AMERICAN APOCYNACEZ. 
folliculis 2, erectis, parallelis, teretibus; seminibus comosis. In Cayenne: v. s. in herb. Mus. Brit. 
(Van Rohr). 
The rigid upright branches are 1 line thick, with axils 4 in. apart; leaves 32-44 in. 
long, 24-23 in. broad, on petioles 23-8 lines long; raceme 3 in. long, on an erect peduncle 
bare at its base for one third of its length, thence furnished with numerous imbricate 
bracts 6 lines long, 1 line broad; pedicels 1 line long; sepals 13 line long; tube of 
corolla 9 lines long; segments 4 lines long, 3 lines broad; the 2 follicles are 64 in. 
long, 1} line broad; the seeds are linear-oblong, 6 lines long, 1 line broad, terminated 
by an erect coma 9 lines long. 
A drawing of this species, with its floral and carpological analysis, is shown in Plate 
XXXV.A. 
10. LasEGUEA VENUSTULA, nob.: ramulis substrictis, brunneis, scabridule pruinosis ; axillis remotius- 
culis : foliis oppositis, obovato-oblongis, infra medium angustioribus, imo in lobos 2 obtuse angustos 
auriculato-cordatis, apice recurvule attenuato-acuminatis, marginibus tenuiter cartilagineis, supra 
fusco-viridibus, seabridule pruinosis, ad costam suleatis, nervis immersis, subtus fusce hepaticis, 
opacis, obsolete scabridulis, costa nervis venisque transversim reticulatis rubidulis prominulis ; 
petiolo canaliculato, scabrido, quam limbus 12plo breviore : racemo laterali, quam folium subbreviore, 
ad medium pedunculato, sursum aspergilliformi, multifloro ; bracteis lanceolatis, crebre imbricatis, 
scabridulis, marginibus membranaceis, quam calyx triplo longioribus ; pedicellis brevibus ; sepalis 
lanceolatis, acuminatissimis, scabridulis, intus squamula lata apice 3-denticulata munitis ; corollze tubo 
cylindrico, carnosulo, superne pro tertia parte subampliato, quam calyx multo longiore ; segmentis 
oblongis, dolabriformibus, dextrorsum convolutis, quam tubus triente brevioribus; staminibus annulo 
niveo-piloso ad contractionem tubi insertis; antheris cohwrentibus, apice membranaceis, imo in 
furcas 2 obtusas breves divisis; disco urceolato, in lobos 5 emarginatos breviter fisso; ovariis 2, 
oblongis, paullo brevioribus ; stylo filiformi ; clavuncula incrassata, imo membranacea. In Cayenne: 
v. s. in herb. Mus. Brit. ex loc. cit. (Van Rohr). 
A species near the preceding, but with larger, narrower leaves; axils 2-3 in. apart; 
leaves 3-43 in. long, 1-1% in. broad, on petioles 3-4 lines long; raceme 23 in. long, on a 
peduncle half that length; bracts 4 lines long, 2 lines broad, very approximate, erect; 
pedicels 3 line long; sepals 1} line long; tube of corolla 9 lines long; segments 3 lines 
long and broad. 
ll. Lasecuza sussPICATA, nob. : Echites subspicata, Vahl, Ecl. ii. p. 18; A. DC. l c. p. 467, In Ame- 
rica centrali (Van Rohr) : non vidi. 
A species near the preceding. A climbing plant, with smooth terete branchlets ; leaves 
patently opposite, oblong, subcordate at the base, attenuated at the apex, very glabrous, 
shining, very entire, reticulately veined, beneath with a prominent reddish midrib, 4-5 in. 
long, on obsoletely villous petioles 6 lines long; raceme lateral, glabrous, on a peduncle 
thickened above, and then extending in a brush-like form, nearly as long as the leaf, 
with very approximate flowers, and having many dark imbricating linear-lanceolate 
bracts with membranaceous margins longer than the pedicel and calyx; pedicels very 
short ; sepals lanceolate, glabrous ; corolla glabrous, with a cylindrical tube 1 in. long, 
shortly swollen near the throat. 
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