ON SOUTH-AMERICAN APOCYNACER. 105 
and opake above, with scarcely prominulent midrib and oblique nerves, with 2 small long 
glands at the base of the midrib, ferruginously opake beneath, with prominulent and reti- 
culate veins, 3-4 in. long, 13-2 in. broad, on deeply channelled reflexed petioles 3-4 lines 
long; the inflorescence is axillary, or in the dichotomy of the branches, 1 in. long, con- 
sisting of 8 or 10 approximate flowers on a slender peduncle 3 lines long, all glabrous, 
upon pedicels 2-3 lines long, supported by an acutely ovate membranaceous bracteole 1 
line long; sepals acutely ovate, submembranaceous, 1 line long, each with three minute 
inner basal scales; corolla red, glabrous outside, 4 lines long; tube 3 lines long, pilose 
in the throat; segments subovoid, membranaceous, 1 line long, with dextrorse con- 
volution; stamens partly exserted; anthers acuminate, with 2 long, slender, parallel 
basal prongs; disk of 5 oblong free lobes, nearly as long as the 2 ovaries. 
29. THYRSANTHUS CREBRIFLORUS, nob.: ramulis teneris, teretibus, fuscis, lenticellis parvis flavidis 
' creberrime maculatis: foliis ovatis, imo subacutis, apice sensim vel abruptius acute acuminatis, 
glaberrimis, submembranaceis, supra fusce viridibus, costa plana, imo glandulis 2 parvis munita, 
nervis tenuissimis, violaceis, adscendenti-divaricatis, venisque reticulatis utrinque fere immersis, 
subtus opace brunnescentibus ; petiolis fuscis, glabris limbo 12plo brevioribus: panicula terminali, 
subthyrsoidea, quam folium paullulo breviore, e basi alternatim ramosa; pedunculo flavide pubes- 
cente, ramis divisis, creberrime plurifloris, pedicellis brevissimis, bracteolatis; sepalis parvis, ovatis, 
Davide membranaceis, obsolete puberulis; corolle tubo brevissimo, segmentis oblongis 2plo longi- 
oribus, glabris, rufescentibus, dextrorsum paullulo convolutis; staminibus subexsertis; cateris ut 
in T. myriantho. n Brasilia, prov. Rio de Janeiro ad Rio Parahybuna, montibus Organensibus : 
v. s. in herb. Mus. Brit. ex l. c. (Gardner 5013). 
A species near the preceding. Its branchlets are very slender, with axils near 1 in. 
apart; leaves 2-21 in. long, 10-12 lines broad, on petioles 2 lines long; panicle 1} in. 
long; its branches 3 in. long, diminishing upwards; pedicels 4 line long, supported by a 
bracteole of the same length; sepals 3 line long; tube of corolla 1 line long; segments 
13 line long. The rest as in T. myrianthus. : 
30. THYRSANTHUS MYRIANTHUS, nob. : Forsteronia floribunda, Müll. (non Meyer) l. c. p. 96. In Brasilia, 
prov. Minas Geraés: v. s. in herb. meo et alior. Arraial das Mercés (Gardner 5012). 
The specimen above quoted is Gardner's 5012 (not Gaudichaud's, as Müller by mis- 
take states). Its branches are fistulous, compressed, lenticellate, fuscous-reddish, with 
axils 2-21 in. apart, each node furnished with 3 distinct interpetiolar stipules; leaves 
ternate, spreading, oblong-elliptic, subacute at the base, narrower and mucronately 
obtuse at the summit, submembranaceous, glabrous, darkish green above, with a 
flattened fuscous midrib, and about 9 pairs of arcuated nerves, each with a small 
concave gland within its axil, and a more or less concrete granular gland at the base of 
the midrib, concolorous beneath, with reddish prominulent nerves and reticulated veins, 
44-44 in. long, 13-2 in. broad, on channelled lenticellate petioles 1 line long; panicle 
terminal, somewhat spreading, 8 in. long, bearing innumerable very small flowers on a 
peduncle bare for 7 lines, then oppositely branched at intervals of 13 in., gradually 
diminishing upwards, branches very slender, arcuately ascending, bare at the base for 
some distance, bracteolated, each alternately divided, the branchlets bearing several laxly 
P 
