280 ORDER 35. TROP^EOLACEJE. 



Genera 9, species 100, generally diffused. The gum resin guiacum is derived from the genus 

 Ouiacum, also that extremely hard and heavy wood, lignum-vitce. 



KALLSTROEMIA, Scop. Sepals 5, persistent; petals 5; stamens 

 10, with no scale, the 5 opposite the sepals defective, placed inside 5 

 hypogynous glands; styles united, stigmas 10-lobed ; fruit at length 

 separating into 10 1 -seeded cocci. (p Prostrate and diffuse, with 

 interpetiolar stipules and abruptly pinnate leaves. 



K. maxima Torr & Gr. Lfts. 3 or 4 pairs, oblong or oval, slightly falcate, mucro- 

 uate, the terminal pair largest ; cocci gibbous at base, tubercled. Waste places, 

 Savannah. Sts. pubescent, 1 to 2f long. FIs. yellow, axillary, solitary, pedun- 

 culate. Jn. Sept. W. Indies. (Tribulus maximus L.) 



ORDER XXXIV. BALSAMINACEJL JEWEL WEEDS. 



Herbs annual, with a succulent stem and watery juice.* Lvs. simple, without 

 stipules. FIs. very irregular and unsymmetrical. Sepals 5, deciduous, the 2 upper 

 connate, the lowest spurred or gibbous. Petals 4, hypogynous, united by pairs, or 

 rarely 5, distinct. Stamens 5, hypogynous. Filaments subulate. Anth. 2-celled. 

 Slig. 5-lobed, sessile. Fr. capsular, 5 -celled, bursting elastically by 5 valves. Sds. 

 several in each cell. Embryo straight. (Figures 114, 281, 282.) 



Genera 2, species 110. "With regard to its properties and uses, this order is of no importance, 

 but some of its species arc highly ornamental. 



IMPATIENS, L. TOUCH-ME-NOT. (Impatient with respect to the 

 irritable capsules.) Sepals colored, apparently but 4 (the 2 upper be- 

 ing united), the lowest gibbous and spurred ; petals apparently 2, each 

 of the lower being united to the 2 lateral ones ; stamens 5, short, an- 

 thers cohering at apex ; capsule often 1 -celled by the obliteration of 

 the dissepiments, 5-valved bursting elastically. Sts. smooth, succulent, 

 tender, subpellucid, with tumid joints. 



1 I. pallida Nutt. Lvs. oblong-ovate, coarsely and obtusely serrate, teeth mucro- 

 nate ; ped. 2 to 4-flowered, elongated ; IOALW gibbous sepak dilated-conical, broader 

 than long, with a very short, recurved spur ; fls. pale yellow, sparingly dotted.* 

 (D Wet shady places, U. S. and Can. St. 2 to 4f high, branched. Lvs. 2 to 5' 

 long, as wide, with large, obtuse teeth, each tipped with a very short mucro. 

 Fls. large, mostly in pairs. Two outer sepals pale green, callous pointed, the 

 rest pale yellow, the lower produced into a conic nectary, ending in a spur ' long. 

 Caps, oblong-cylindric 1' long, bursting at the slightest touch when mature, and 

 scattering the seed. Aug. 



2 I. fulva ISTutt. Lvs. rhombic-ovate, obtusish, coarsely and obtusely serrate, teeth 

 mucronate ; ped. 2 to 4-flowered, short ; lower gibbous sepal, acutely conical, 

 longer than broad, with an elongated, closely reflexed spur ; fls. deep orange, macu- 

 late with many brown spots. (T) In wet, shady grounds, Can. to Ga., more com- 

 mon than the last, somewhat glaucous. St. 1| 3f high. Lvs. 1 to 3' long, $ as 

 wide, having like the last a few filiform teeth at the base. Fls. about 1' in length, 

 the recurved spur of the lower sepals ' long. Caps, as in the last. Aug. 



3 I. Balsamina L. BALSAMINE. Lvs. lanceolate, serrate, upper ones alternate ; 

 ped. clustered; spur snorter than the flower. (D From the E. Indies. It is one of 

 the most beautiful of garden annuals, forming a showy pyramid of finely varie- 

 gated, carnation-like flowers. The prevailing colors of the petals are red and 

 white, but the former varies in every possible shade of crimson, scarlet, purple, 

 pink and flesh color. Fls. often double. 



ORDER XXXV. TROP^EOLACE^E. TIOPHYWOETS. 



Plants herbaceous, smooth, climbing or twining, with a pungent, watery juice. 

 Lvs. peltate or palmate. Fls. irregular, axillary, perfect. Sepals 3 to 5, colored, 



