. 
e* 
d72 UMBELLIFERA. 
which are usually compound ( figs. 398, 430, and 968), or some- 
times simple, and rarely the flowers are capitate, with (fig. 
398, a) or without (fig. 430) an involucre ; the partial umbels or 
umbellules also, with (fig. 968, b) or without (jig. 430, b) an 
involucel. Calyx superior, the limb* entire, in the form of a 
ring, or 5-toothed, or obsolete. Petals 5 (fig. 578), usually 
inflexed at the point, often unequal in size, inserted on the 
Fic. 968. Fie. 969. 
Fig. 968. a. General umbel of Fool’s Parsley (Zthusa Cynapium) in fruit, 
b. One of the umbellules, showing the 3-leaved unilateral pendulous in- 
volucel.— Fig. 969. A side view of the ripe fruit of Hemlock (Conium 
maculatum ).—Fig. 970. Transverse section of the fruit of the same.—— 
Fig. 971. Vertical section of one of the halves (mervicarps) of the same 
fruit. The letters refer to the same parts in the three last figures. a. 
Ridges. 6. Channels. d, Albumen, 7. Embryo. g. Remains of the styles. 
h. Axis, i. Prolonged axis or carpophore. 
calyx outside the disk which crowns the ovary; &stivation 
imbricate, or rarely valvate or induplicate. Stamens 5, inserted 
with the petals and alternate with them (jig. 578), incurved in 
eestivation. Ovary inferior (fig. 578), crowned by a double 
fleshy disk (stylopod) (fig. 578, d), 2-celled, with a solitary 
pendulous ovule in each cell; styles 2; stigmas simple. Fruit 
called a cremocarp or diachenium ( figs. 717 and 969), consisting 
of 2 carpels (mericarps) adhering by their face (conumissure) to 
