150 PRACTICAL BOTANY. 



SS3. Pod globular, fleshy, indehiscent, 1 -seeded. Seeds 

 crestless. Flowers small, rose-color, in dense racemes. 



Fumaria of&cinalis. 



Pod slender, 2-valved, and many-seeded, sometimes 



torulose. Seeds crested. Flowers yellow or yellowish-red 



in racemes. Corydalis. 



9^4. Stems swollen at the joints, very succulent. Fruit 

 capsular, 5-cclled, bursting elastically, when rii^e, by 5 valves. 

 Sepals and petals colored alike. Sepals apparently 4 (really 

 5, the upper 2 united), the lowest gibbous and spurred. 

 Petals apparently but 2 (really 4, united in pairs). The fila- 

 ments of the stamens furnished with a scale, and the 

 5 scales connivent over the stigma. Leaves oblong-ovate, or 

 rhombic-ovate, scarcely serrate. Flowers axillary, or pani- 

 cled, yellow, •or orange-colored, often with brown dots. 

 (Sepals and petals readily confounded.) Impatiens. 

 Stems not swollen at the joints. Leaves stipulate. 

 Fruit a 3-valved capsule, with 3 parietal placentse. Stamens 

 with their broad filaments continued beyond the anther-cells, 

 the anthers coherent with each other. Petals 5, commonly 

 unequal, the lowest spurred, or gibbous and saccate at the 

 base. Perennial herbs 225 



225, Sepals unequal, more or less auricled at the base. 

 The lowest and broadest of the petals spurred at the base. 

 Two of the anthers appendiculate at the back. Flowers 

 axillary, white, violet, blue, or yellow. Leaves undivided or 

 divided, often cordate. Caulescent or acaulescent. Viola. 



Sepals nearly equal, not auricled. The lowest and 

 broadest petal more notched at the apex than the rest, and 

 saccate or gibbous at the base. Stamens completely united 

 into a sheath, enclosing the ovary, and bearing a broad 

 gland on the lower side. Style hooked at the summit. 

 Stems always leafy. Flowere small, greenish white, 1 or 3 

 together in the axils. Solea concolor, Ging. 



2S6, Style or stigma 1 227 



Styles 3. Calyx deeply 4-parted. Petals 4, the 

 upper one 3- to 5-cleft, the 2 lateral 3-cleft, the lowest linear 

 and entire. Ovary 3-lobed. A fleshy, one-sided disk be- 

 neath the pistil 7 



