72 
® 
is the specimen on which the description of Croton senegalense 
published by Lamarck was based, though it is not the specimen 
cited by Lamarck as the type of his species. Vahl, when he 
examined the Jussieu herbarium, discovered the transference 
which Lamarck had inadvertently made. ‘To rectify matters Vah! 
prepared a new description of Croton senegalense, based on ‘ Adan- 
son n. 165.’ This description, we have seen, he permitted Geiseler to 
publish in 1807. Neither A. L. Jussieu, A. Jussieu, Lamarck, nor 
Vahl gave this plant a specific name. It bore, when they studied 
it, only the word ‘Croton’; at a later date Desvaux added to the 
generic name the indication ‘ senegalense var. 3. Desv.’. The chiet 
interest of the specimen is that it was the basis of the second of 
the ‘ species duae senegalenses’ referred to by A. Jussieu. 
Herb. Jussieu 16267 consists of two specimens, rather badly 
prepared, of the herbaceous condition of Croton Rottleri, Geis. 
The chief interest of these specimens is that they. have been 
written up by Vahl himself, as Baillon has already stated (H'tud. 
gén. Euphorb. p. 322), as ‘Croton plicatum, Vahl.’ To this indi- 
cation A. L. Jussieu has added the word ‘Symb.’ and has at the 
same time written ‘ Crozophora plicata, Ad. J. Euph. 28.’ A 
secondary interest attaches to this evidence that Vahl, when he 
mens were gathered in Southern India. Even this information 
is indirect. The writing on the labels is in Tamil, but in both 
cases the inscriptions, which contain the name ‘ Rama,’ are 
apparently catchwords from the edge of some manuscript. 
Herb. Jussieu 16268 consists of two specimens, both representing 
the same condition of the same species. One of the specimens 
bears three labels written up by Gundel, Tournefort, and Vaillant 
respectively. The label by Gundel is endorsed ‘ex insula Melo.’ 
That written up by Tournefort reads, ‘ Ricinoides ex qua paratur 
Tournesol gallorum folio oblongo et villoso,’ so that we are left 
free from doubt as to the plant intended by that name as published 
in 1703 (Cor. p. 45). The second specimen bears two labels, one 
of these endorsed ‘Croton verbascifolium, Willd.’ It is possible 
that the specimen may have been received from Willdenow him- 
self, for underneath the original name A. L. Jussieu has written 
‘Crozophora verbascifolia Ad. J. Euph. 28.’ The second label, 
however, is more interesting; it is in the handwriting of Adrien 
Jussieu himself, who has endorsed it ‘Croton obliquum,’ an 
identification which, under the circumstances, was fully justified, 
because the specimen agrees well with the one in Herb. Jussieu 
16264, named Croton obliquum by Vahl himelf. This endorse- 
ment perhaps explains the younger Jussieu’s statement, not so 
fully appreciated as it deserves, that two of the North African 
species of Chrozophora extend to Europe. One of the two is the 
‘Tournesol ’ itself, which is to be met with everywhere on or near 
the Mediterranean seaboard; the other is Croton obliquum, Vahl, 
which, until A. Jussieu wrote, had been looked upon as 
