448 Mr. H. M. Leake. [Jan. 9, 
Synvpodial Types. 
(a) Foliage green— 
(1) Leaf factor << 2— 
i. Leaf commonly with three lobes, bracteoles small, closely 
enveloping bud and fruit; petals yellow. Type 4, 
G. indicum, Lamk. 
ii. Leaf lobes 5—7, petals yellow. Type 5.* 
iii. Leaf lobes 5—7, petals white. Types 6 and 7. 
(2) Leaf factor > 3— 
1, Leaf lobes 5—7, petals yellow. Type 8. 
ii. Leaf lobes 5—7, petals white. Type 9. 
il. Bracteoles large, continuing to grow during development 
of boll, which is large, many seeded; petals pale yellow. 
Type 10, G. cernuwm, Tod. 
(6) Foliage red— 
Leaf factor > 3, petal red on white. Type 11, G. sanguineum, 
‘Hassk., var. minor of Gammie. 
The experiments include observations on the following characters: (1) 
colour of corolla ; (2) red colouring matter of sap; (3) leaf factor; (4) type 
of branching and length of vegetative period ; (5) glands of the leaf. 
1. Colour of the Corolla—This may be either yellow or white. The 
heterozygous form has a full yellow petal—which colour is, therefore, 
completely dominant—and gives in subsequent generations pure yellows 
(DD), impure yellows (DR), and whites (RR), the latter giving whites only. 
The number of individuals here handled are too few to one reliable numerical 
results. 
2. Red Colouring Matter of the Sap—The presence of a red colouring 
matter in the sap, such as occurs in Type 3 and Type 11, is dominant to its 
absence. The dominance is, however, incomplete, and the heterozygous and 
pure forms are readily distinguished from each other by the depth of colour. 
From a cross between Type 3 (red flowered) and Type 9 (white flowered) it 
has been found possible to isolate pure red on white flowered (cf Type 11) and 
pure yellow flowered (cf. Type 8) forms. Type 3 must therefore be con- 
sidered to bear the yellow colour, masked by the red sap colour, which is 
superimposed. The Mendelian expectation in the F.2 generation (on the 
assumption that Type 3 possesses the two dominant characters, yellow petal 
- “* Types 5—9 are included in the G@. neglectwm and -G. rosewm of Todaro. ‘ 
