Hevea Randiana Huber in Bol. Mus. Goeldi 4 (1906) 
656. 
Hevea brasihensis var. stylosa Huber (loe. cit. 4 (1906) 
640. 
Hevea brasihensis var. janeirensis (Muell.-Arg.) Pax 
in Pflanzenr. 4 (1910) 121. 
Hevea brasiliensis var. Randiana (Huber) Pax loe. cit. 
4 (1910) 123. 
Hevea brasiliensis mut. Granthami Bartlett in Bot. 
Gaz. 84 (1927) 200. 
Hevea Granthami Bartlett loc. cit. 84 (1927) 200, 
nomen alt. anteriori. 
Hevea brasiliensis forma typica Ducke in Arch. Jard. 
Bot. Rio Janeiro 6 (1988) 55. 
Hevea brasiliensis var. subconcolor Ducke loc. cit. 6 
(1988) 55. 
Hevea brasiliensis torma subconcolor Ducke in Arch. 
Inst. Biol. Veg. Rio Janeiro 2 (1985) 224. 
Hevea brasiliensis forma Randiana (Huber) Ducke 
loc. cit. 2 (1985) 224. 
Siphonia Ridleyana Cook in Journ. Wash. Acad. Sci. 
31 (1941) 46. 
Siphonia janeirensis (Muell.-Arg.) Cook loc. cit. 31 
(1941) 61. 
The varietal names which follow, included by Seibert 
(loc. cit. 805-806) as synonyms of Hevea brasiliensis, are 
here omitted pending additional studies which may pos- 
sibly indicate that they are distinct concepts. 
Hevea brasiliensis var. angustifolia Ule in Tropen- 
pflanz. Beiheft. 6 (1905) 8. 
Hevea brasiliensis var. latifolia Ule loc. cit. 6 (1905) 8. 
Hevea brasiliensis var. acreana Ule in Engler Bot. 
Jahrb. 50 (1914) 14. 
For his friendly counsel in this as in many other prob- 
lems which have arisen in my botanical research, I am 
deeply grateful to the late Mr. Charles A. Weatherby 
of the Gray Herbarium of Harvard University. 
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