MALV ACE. 87 
indefinite number of carpels. 
The calyx is gamosepalous and quin- 
quefid, and its lobes are arranged in the bud in valvate præfloration, 
often a little reduplicate. 
themselves and with the lower part of the androceum. 
The petals at their base are united among 
They fall 
in a single piece as gamopetalous corollas do, and they are contorted 
in præfloration. 
The stamens are indefinite in number’ and mona- 
Malva sylvestris. 

Fra. 135. 
Longitudinal ‘section of flower ( 
). 
ate 

Fria. 138. 
Fruit (+). 

Fie. 137. Fia. 140, Fie. 139. 
Flower, without Long. sect. of Carpel (#). 
the perianth (2). carpel, 

Fie. 136, 
Diagram. 

delphous. Their filaments form a tube surrounding the gynæceum, 
and which in its upper part as far as the apex, is divided into as 
many small tongues as there are anthers. These are reniform, one- 
celled,’ extrorse, dehiscing by a longitudinal cleft. The ovary is 
superior. Its cells are verticillate all round the upper part of the 
floral receptacle; and they are surmounted by a style more or less 

? According to PAYER (Organog., 32), the an- 
droceum is formed of ten series of stamens often 
superposed in pairs to the petals, each series 
being capable of deduplication since the pieces 
of each of them deduplicate, the evolution of 
the stamens being carried on from within out- 
wardly (or from above downwards) in each series. 
* The rudiment of the partition which is ob- 
served in their interior represents, not the sepa- 
ration of the two cells, but the projection more 
or less complete, which is produced earlier be- 
tween the two parts of the same cell, and is 
afterwards more or less completely reabsorbed. 
3 The pollen is formed of spherical and spiked 
grains. It is also remarkable for its round pores 
irregularly scattered, and 2 punctuate external 
membrane. The pores and the spikes are nu- 
merous and small in size in most species of Malva, 
Althea, Sida, Lavatera, Napeaand Gossypium. 
29 
(H. Mout, in Ann. Sc. Nat., sér. 2, iii, 334.) 
