CONTRIBUTIONS TO BOTANY, 
227 
in a very young state ; they are only 3 lines long, both in flower 
and fruit. The drupe, supported on a very short pedicel, is 
11 lines long and 7 lines in diameter; the sarcocarp, in a dried 
state, is v^ry thin ; the putamen is also very thin, marked exter- 
nally and internally by nine longitudinal lines ; the integuments 
are membranaceous; the albumen is very thick and fleshy, 
marked by three longitudinal grooves, which terminate at the 
base in three short hollow spaces, uniting in a long hollow 
cylindrical cavity in the axis which extends to | of the length 
of the albumen ; in the solid apex, over this space, the minute 
embryo is imbedded ; the radicle is superior, short, thick, and 
clavate ; the cotyledons are of equal length, but much thinner 
and narrower. 
9. Liriosma macrophjlla, Bth. MSS. — Olax macrophylla, Bth. 
Trans. Linn. Soc. xviii. 678; — ramulis glabris, striatis; foliis 
lanceolato-oblongis, utrinque acutis, summo gradatim acumi- 
natis, acutissimis, textura tenui, ubique glaberrimis, superne 
sublucidis, subtus pallidioribus, opacis, nervis paucis sese 
arcuatis breviter divergentibus, paullo prominentibus, reticu- 
latis, rachi subtus prominulo et . sulcato, margine valde re- 
flexo, petiolo brevissimo, crassiusculo, transverse ruguloso; 
racemis axillaribus, 6-10-floris. — Rio Casiquiare, in Brasilia 
Septentrionali (Spruce, 3312). 
The leaves are 5^-5f inches long, 2|-2f inches broad, on a 
petiole of 2 lines ; the raceme is 3-4 lines long ; the drupe is 
9 lines long, 5 lines in diameter, supported on a pedicel 2 lines 
in length. 
To some of the genera of the Icacinacece formerly described I 
have to make the following additions : — 
Leretia. 
1. Leretia Vellozii, nob., Ann. Nat. Hist. 2 ser. ix. 392; huj. op. 
p. 62. pi. 7. — L. cordata. Veil. Flor. Fluni. iii. tab. 2. — 
Rio de Janeiro. 
2. Leretia ampla, n. sp. ; — ramulis angulatis, glaberrimis, cortice 
laxo, rugoso; foliis majusculis (floralibus minoribus), oblongis, 
imo obtusis, e medio gradatim acutis, mucronatis, submem- 
branaceis, utrinque glaberrimis, subnitidis, pallescentibus et 
concoloribus, nervis conspicuis obliquis sese arcuatis subtus 
prominentibus, valde reticulatis, venis transversalibus, mar- 
gine integro, petiolo rubro, tereti, striato; paniculis laxis, 
folio brevioribus, infra axillas oppositifoliis, vel terminalibus, 
2 G 2 
