GEEANIACEiE— SAPINDACE^ 343 



T. m&jus, Linn. Climbing nasturtium. Tall-climbing: flowers yellow, 

 red, cream-white, and other colors: petals not pointed. 



T. minus, Linn. Dwarf nasturtium. Fip:. 195. Not climbing : petals 

 with a sharp point. 



5. IMPATIENS. Touch-me-not. Jewel-weed 



Soft or succulent tender herbs with simple alternate or opposite leaves 



and very irregular flowers: sepals 3 to .5, usually 4, one of them produced 



into a large curving spur : petals apparently 2, but each 



consisting of a united pair : stamens 5 : fruit 5-valved, 



elastically discharging the seeds (whence the names "Im- 



patiens"and "touch-me-not"). 



I. Balsdmina, Linn. Garden balsam. Erect and stout, 



\-2}4. ft.: leaves lanceolate, toothed: flowers in the axils, 



of many colors, often full double. 



- ,. ,.^ I. bifldra, Walt. (/. Adva, Nutt.l. Orange jewel-weed. 



Impatiens biflora. 



Fig. 462. Tall branching plant (2^ ft.) with alternate oval 



or long-oval blunt-toothed long-stalked leaves: flowers % in. long, horizon- 

 tal and hanging, orange-yellow with a red-spotted lower lip, the upper lip 

 less spotted and of one piece, the two green sepals at the apex of the pedicel 

 closely appressed to the tube, the tail of the spur curled under the spur: 

 pod opening elastically when ripe, throwing the seeds (the .l valves quickly 

 curling from above downwards). Common in swales. 

 I. ailrea, Muhl. (I. pallida, Nutt. ). Yellow jewel- 

 weed. Fig. 4G3. Leaves usually stronger-toothed, the 

 teeth usually ending in sharp points : flowers 1 in. long 

 and much broader than those of I. biflora, clear yellow, 

 the upper lip of two parts, the lower also of two parts 

 and nearly horizontal, the 2 sepals at apex of pedicel 

 large and not closely appressed, tail shorter : pods as <^^^ 



in the other. Less common than the other, but often "" 



growing with it. 463. Impatiens aurea. 



XXVI. SAPINDACE^. Soapberry or Maple Family. 



Trees or shrubs, of various habit: flowers polypetalous or apeta- 

 lous, often inconspicuous, 4- or5-merous: stamens 10 or less, borne 

 on a fleshy ring or disk surrounding the single 2-3-loculed pistil: fiuit 

 a pod or samara. A various family, largely tropical. Genera about 

 75, and species about 600 to 700. Maple, box-elder, buckeye, horse- 

 chestnut, bladder-nut, are familiar examples. 



A. Herb: climbing by hook-like tendrils among the 



flowers in the cluster: fruit an inflated pcd 1. C'ardiospermum 



AA. Trees and shrubs. 



