Flowers and theh' Parts 



133 



the whole ovule is so bent that a line drawn through the 

 funicle would cut at right angles, nearly at the centre, a line 

 drawn through the chalaza and the micropyle. The funicle is 

 partially fused with the seed- coat forming the raphe. The 

 anatropous ovule which occurs most frequently, is still further 

 bent so as to bring the micropyle down to the funicle, the 

 chalaza lying at the opposite end. The raphe extends the 

 whole length of the ovule. The campylotropous ovule, 



Fig. 119.— Sections of ovules (diagrammatic). A, orthotropous ; B, ana- 

 tropous ; C, campylotropous ; D, amphitropous. f, funiculus ; ai, outer 

 integument ; ii, inner integument ; k, nucellus ; w, micropyle ; em, embryo- 

 sac ; r, the point of union between the side of ovule and funiculus ; c, the 

 chalaza. (After Prantl.) 



found in the narrow bean, is curved so as to lie at right 

 angles to the funicle which is not fused with the integument. 

 Now find the flower parts in Hibiscus. The stamens 

 here are joined by their filaments into a tube. Above the 

 stamens are five crimson velvety cushions, the stigmas. 

 Carefully split down the stamen tube, and see how these five 

 cushions are borne at the top of a long slender stalk, the 

 style. By following the style down its entire length, we 

 come to the ovary. A cut across the ovary shows as many 

 parts or carpels as there are stigmas. Within the cavities 

 or locules are the ovules. Remember that the ovules are 

 not at first seeds, any more than a new-laid fowl's egg is a 

 chicken. 



