ing of Hevea nitida. Whether or not this drawing was 
executed by Martius himself or merely under his direc- 
tion, | have not been able to ascertain. Since it is un- 
finished, it has hitherto never been published (Plate II). 
Other specimens of the Martius collection(s) of Hevea 
nitida are found in the Herbarium Delessert in the Con- 
servatoire Botanique in Geneva and in the Rijksherbar- 
ium in Leiden. ‘The Geneva specimen bears the follow- 
ing information: ‘‘Solimdes et Amazonium fluv.’’ The 
Leiden material is labelled ‘‘Brasilia pr. Rio Negro’’ and 
was acquired by exchange from the Munich Herbarium. 
There is an unusually complete set of Martius plants in 
Brussels, but I found no specimen of Hevea nitida there. 
Hevea nitida was, for many years, surrounded by 
much uncertainty. Ducke (in Arch. Inst. Biol. Veg. Rio 
Janeiro 2 (1935) 243) and Schultes (in Bot. Mus. Leafl. 
Harvard Univ. 12 (1945) 7) each held different opinions. 
In 1947, using new characters which he found very use- 
ful in the study of Hevea, and on the basis of Macbride’s 
photograph, Seibert (in Ann. Mo. Bot. Gard. 34 (1947) 
298) maintained that Hevea nitida and H. viridis Hub. 
were identical and reduced the latter to synonymy under 
the former. Schultes (in Bot. Mus. Leafl. Harvard Univ. 
13 (1947) 10 and Baldwin (in Journ. Hered. 40 (1949) 
48) accepted Seibert’s change. It is apparent from my 
examination of the Martius material that Seibert’s opin- 
ion is correct. Not only do all of the vegetative charac- 
ters of Hevea nitida correspond exactly with those given 
for H. viridis; the seeds and capsules which are preserved 
in Munich alone furnish sufficient evidence that HZ. nitida 
is the same concept which has been masquerading under 
the name AZ. viridis. 
Hevea pauciflora (Spruce ex Benth.) Mueller- 
Argoviensis in Linnaea 84 (1865) 2038. 
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