81 
plant the Spanish and the Greek specimens cited under var. (3. 
belong. ; 
dc. C. tinctoria y. genuina (l.c. p. 749) is confined to the ‘ Tour- 
nesol,’ as figured by Clusius in 1557 and as described by Linnaeus, 
under the name Croton tinctorium, in 1753. This plant, however, 
occurs in two states, readily distinguished by the shape of the 
leaves. The plant from Southern France has these rather rhom- 
boid in outline, as shown in Clusius’ figure; many of the speci- 
mens from Greece, Crete, Asia Minor and Syria have the leaves 
ovate and subcordate, as shown in a figure prepared by Gesner 
about 1561, first published by Camerarius in 1586. This latter 
state of the ‘Toursenol’ outwardly much resembles some speci- 
mens of var. (3. hierosolymitana, to which, notwithstanding 
differences in the flower, Miiller has referred it. 
3d. C. tinctoria 8. subplicata (l.c. p. 749), is a form which agrees 
with var. y. genuina in all its characters save that it is of a pros- 
trate in place of an erect habit. 
. C. obliqua (l.c. p. 749) is in intention Croton oblongifolium, 
Del. (1812), which is, as Miiller has stated, identical with Croton 
tinctorium? Forsk. (1775) from Arabia, as opposed to the Croton 
tinctorium? Forsk. (Cent. vi. p. 162) from Gizeh in Egypt. But 
Cc 
