lection at the Natuurwetenschappelijk Museum in Ant- 
werp, Belgium, where there is an excellent specimen of 
this Spruce collection of Hevea brasiliensis and where, 
ona Sagot collection of H. guianensis Aubl. from French 
Guiana, [ found the following interesting annotation: 
[ex herb. DC contre un fragment de H. brasiliensis 
Muell.-Arg. ]. 
Hevea lutea (Spruce ex Benth.) Mueller-Argoviensis 
in Linnaea 84 (1865) 204. 
Stphonia lutea Spruce ex Bentham in Hooker’s Journ. 
Bot. 6 (1854) 370. 
The De Candolle Herbarium possesses two specimens 
which Mueller referred to Hevea lutea. I have annotated 
both as Hevea guianensis Aublet var. lutea (Spruce ex 
Benth.) Ducke & Schultes. 
Venezur.a: Territorio del Amazonas, Rio Negro, ‘‘prope San Car- 
los, ad Rio Negro, Brasiliae borealis. Coll. R. Spruce 3139, 1853-54.’’ 
Spruce 3139 is widely distributed in the principal her- 
baria. The De Candolle specimen, a duplicate type of 
Hevea apiculata Baillon, is especially complete, compris- 
ing several leaves, a few loose leaflets and abundant flow- 
ering material. Mueller, who, in the Prodromus (l.c. 
719), reduced Hevea apiculata to synonymy under H. 
lutea and who later (in Martius FI. Bras. 11, pt. 2 (1874) 
302) made it a variety of Hi. lutea, wrote on the speci- 
men: ‘‘Non differt a Hevea lutea Muell.-Arg. 18638. B 
apiculata Muell.-Arg. in Flor. bras.” 
Brazit: Estado do Amazonas, Rio Uaupés, “prope Panuré [Ipan- 
uré| ad Rio Uaupés. Coll. R. Spruce 2088. Oct. 1852-Jan. 1853."° 
The De Candolle Herbarium material of Spruce 2088, 
a duplicate type of Siphonia lutea, is an especially com- 
plete flowering specimen of a widely distributed number. 
[27] 
