218 FOUNDATIONS OF BOTANY 



Ovary 3-celled; style thread-like, stigma knobbed; ovules 

 many in 1 cell, solitary in the 2 others. Fruit nearly globose, 

 1-seeded. 



1. L. borealis, L. TWIN-FLOWER. A beautiful, delicate plant. 

 Corolla pale pink, very fragrant. Moist woods, in moss, and cold 

 bogs N. 



V. TRIOSTEUM, L. 



Coarse, hairy, perennial herbs. Leaves large, those of each 

 pair somewhat joined at the base, so that the stem appears to 

 rise through them. Calyx-tube ovoid ; divisions of the limb 

 leaf-like, lance-linear, persistent. Corolla knobbed at the base, 

 nearly equally 5-lobed. Ovary usually 3-celled, ripening into 

 a stone-fruit with 3 nutlets. 



1. T. perfoliatum, L. TINKER-WEED, WILD COFFEE, FEVER- 

 WORT, HORSE-GENTIAN. Stem unbranched, soft-hairy, 2-4 ft. high. 

 Leaves spatulate-ovate, abruptly narrowed at the base, 4-7 in. long 

 and 2-4 in. wide, bordered with a fringe of hairs. Flowers dark 

 brownish-purple. Corolla about \ in. long, sticky-downy. Fruit 

 ellipsoidal, orange-colored when ripe. Common along fence-rows 

 and in rocky woods. 



VI. LONICERA, L. 



Shrubs or woody vines. Leaves simple, usually entire, 

 those of a pair often appearing as if joined together at the 

 base, so that the stem seems to rise through them. Calyx- 

 tube ovoid, 5-toothed. Corolla tubular to bell-shaped, often 

 knobbed at the base or 2-lipped. Stamens 5. Ovary 2-3- 

 celled, ovules several in each cell; style slender, stigma 

 knobbed. Fruit a 1-3-celled, 1-few-seeded berry.* 



A. 



Stems twining. 



1. L. Sullivantii, Gray. YELLOW HONEYSUCKLE. Stem some- 

 what twining. Leaves oval to obovate, obtuse, entire, green above, 

 with a bloom beneath, the lower short-petioled, the upper sessile or 

 joined at the base. Flowers in crowded, terminal whorls, bright 

 yellow, fragrant. Corolla-tube slender, 1-1 1 in. long, bilabiate, 

 4-lobed, pubescent within. Stamens and style projecting. On river 

 banks and hillsides ; often cultivated.* 



