BOTANICAL NOMENCLATURE. : 87 
To illustrate the argument, I have chosen the genus V aheety. iy swe 
Some difficulty arises in fixing the precise date of the first pin 
lication of this genus, because the ‘Illustration des Genres 
which at page 292 of tome 2, and on planche 169, Vahea yummie 
was established by lade was elaborated at a time when 
orrors of war, intensified by their duration and piace 
** Illustration,’ which was arranged Sausicas to the Linnean 
system, and had therefore V. OG in the Pentandria, ea com- 
mencing to appear in 1791, became ‘ienabod only by Poiret in 1823 
(as I notice in my own bound copy), long after its originator had 
been struck with blindness, a calamity which he had to bear during 
many of the last years of his life. Collaterally also the volumes 
of Lamarck’s ‘ Encyclopédie Méthodique ’ were successively issued, 
seemingly for this reason the venerable eRe in the ever- 
memorable ‘Genera Plantarum,’ which resulted during the last 
enty years as one of the main achie pie of his and Sir Joseph 
Hooker’s great labours, thought proper to suppress Vahea, when 
observing its identity with the genus Landolphia, which latter 
7 
(‘ Flore d’Oware, i., 54, t. 34). Nevertheless I felt ae that 
arck’s like alone of Vahea gummifera t for 
with this view 
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damien Culture,’ and also in the enlarged re — of Witt- 
stein’s ‘Organic Constituents of Plants’ I had to with the 
India-rubbers among other plants. But eager to arate whether 
the views held by me were correct, I Psp —— M. 
phonse de Candolle, whose lustrions parent ha uch co- 
operated botanically with Lamarck, especially by editing ‘aed much 
enlarging the third edition of the ‘ Flore Francaise’ as ores 
in 1805. This leading phytographer, who had him for his 
ome -- i. rarer "in ape — the pam 2 ‘to which 
also a belongs, affords m Geneva (under date 
of 7th, ne 1882) the leash 8 path which, so far as Vahea 
is concerned, I verbally translate :—‘‘ Your question, ee to the 
— (livraisons) of Lamarck’s illustration, has given me som 
trouble, as our copy at Geneva does not indicate anything. fg 
Metately,: while searching through the old periodic cals, I foun 
of Execs eat Go in his ‘ Magasin Eneyclopédique, aca 1. 
th 
Lamarck. He fo anil that Millin did wine to them in 1797, by 
saying the sixtieth livraison had appeared, and that the number of 
