62 INDEPENDENCE OR SEPARATION OF ORGANS. 
Mereurialis in which the leaves were deeply slashed. In 
Chenopodium (Quinoa the leaves were so numerous and 
the clefts so deep, that the species was hardly recognis- 
able, while on a branch of Rhus Cotinus observed by De 
Candolle the lobes were so narrow and so fine as to 
give the plant the aspect of an Uimbellifer. Wigand 
(‘ Flora,’ 1856, p. 706) speaks of the leaves of Dipsacus 
fullonum with bi-partite leaves ; Moquin mentions the 
occurrence of a leaf of an oleander bi-lobed at the 
summit, so as to give the appearance of a fusion of two 
leaves. Stemheil has recorded an instance in Scabiosa 
atropurpurea in which one of the stem leaves presented 
the following peculiarities. It was simple below, but. 
divided above into two equal lobes, provided each with 
a median nerve.’ Steinheil has also recorded a Ceras- 
tiwm in which one of the leaves was provided with two 
midribs ; above this leaf was a group of ternate leaves. 
I have seen similar instances in the common Elm, Ulmuis - 

Fic. 26.—Bifureated leaf of Lamiwm album, &ce. 
campestris, and also in the common nettle, Urtica dioica, 
1 « Ann. des Science Nat.,’ 2nd series, t. iv, p. 147, tab. v, figs. 3 and 4.- 
