218 FOUNDATIONS OF BOTANY 



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

 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 6. 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. SulUvantii, 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-lJ in. long, bilabiate,- 

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

 banks and hillsides ; often cultivated.* 



