475 



Culture. They arc readily increased by parting the roots, and 

 planting them out in the autumn, or early in the spring, in a bed or 

 border of common earth. 



And also by seeds sown at the same seasons in similar situations, 

 the plants being pricked out into other beds in the summer, and 

 removed in the autumn to the places where they are to grow. 



They afford ornament in the common borders among other 

 flower plants. 



2. TRILLIUM SESSILE 



SESSILE TRILLIUM. 



THIS genus furnishes plants of the low, tuberous-rooted, flowery, 

 perennial kind. 



It belongs to the class and order Hexandria Trigynia, and ranks 

 in the natural order of Sarntentacea. 



The characters are: that the calyx is a three-leaved perianth, 

 spreading: leaflets ovate, permanent: the corolla has three petals 

 subovate, a little bigger than the calyx: the stamina have six awl- 

 shaped filaments, shorter than the calyx, erect: anthers terminating, 

 oblong, length of the filaments: the pistillum is a roundish germ: 

 styles filiform, recurved: stigmas simple: the pcricarpium is a 

 roundish berry, three celled the seeds many, roundish. 



The species are: 1. T. cenuiitni, Drooping Trillium; 2. T. erect urn, 

 Upright Trillium; 3. T. .sc.s.s/ ' , Sessile flowered Trillium. 



The first has a perennial tuberous root: the stem is erect, a foot 

 high, simple, round, slightly striated, smooth: the leaves three 

 together, lermi ating, o;i shori f ol-.lalks, spreading', rhomboidal, 

 pointed, entire, veiny, smooth, paler beneath: the flowers solitary, 

 among the leaves, without bractes the flower-stalk round, a little 

 waved, smooth. It is a native of Nortli America, 



