Hevea pauciflora (Spruce ex Benth.) Mueller- 
Argoviensis in Linnaea 84 (1865) 208. 
Siphonia paueifiora Spruce ex Bentham. in Hooker's 
Journ. Bot. 6 (1854) 870. 
There is apparently no material of this concept in the 
De Candolle Herbarium. 
Hevea rigidifolia (Spruec ev Benth.) Mueller- 
Argoviensis in Linnaea B+ (1865) 2038. 
Siphonia rigidifolia Spruce ex Bentham in Hooker's 
Journ. Bot. 6 (1854) 871. 
‘There is one specimen of Hevea rigidifolia, a duplicate 
type. 
Brazit: Estado do Amazonas, Rio Uaupés, ‘‘prope Panuré [Ipan- 
oré] ad Rio Uaupés. Coll. R. Spruce 2527. Oct. 1852-Jan. 1853.77 
Spruce 2527 inthe De Candolle Herbarium comprises 
uw branch with several adult and young leaves and abun- 
dant flowering material. An examination of one stami- 
nate and one pistillate flower trom the collection indicates 
agreement with the descriptions of this concept prepared 
on the basis of a recent study of the type and new ma- 
terial (Schultes in Bot. Mus. Leaf. Harvard Univ. 13 
(1948) 101, t. vill). 
Hevea Benthamiana Mueller-Argoviensis in Lin- 
naea B+ (1865) 204. 
The specimen of Hevea Benthamiana in the De Can- 
dolle Herbarium is apparently the type of the concept. 
Brazit: Estado do Amazonas, Rio Uaupés, “prope Panuré [ Ipan- 
oré] ad Rio Uaupés. Coll. R. Spruce 2560, 
This material comprises four or five leaves and two 
uxes of the inflorescence. It was formerly confused with 
Hevea Spruceana and was distributed as Siphonia dis- 
color, but Mueller, recognizing it as a distinct concept, 
described it on the basis of this specimen. 
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