KEY. 143 



1 80. Pod splitting to the middle, or farther into valves. 

 Petals 2-parted. Stamens 3-5 (or 10). Stems spreading and 

 marked with an alternate, or 2 opposite hairy lines. Flow- 

 ers white, axillary and terminal. Leaves ovate. 



Stellaria (200). 



Pod opening at the top only, by teeth. Petals jag- 

 ged, or denticulate at the summit. Stamens 3-5. Flowers 

 white, in an umbel, on a terminal, glandular-pubescent pe- 

 duncle. Pedicels reflexed after flowering. Leaves oblong. 



Holosteum umbellatum, L. 



181. Pod 1-celled, with 2 parietal placentae. Seeds oval, 

 roughish. Petals spatulate, small. Calyx-segments obtuse. 

 Petioles with dilated margins or adherent stipules at the 

 base. Flowers greenish or purplish. Heuchera (288). 



Pod 2-celled, 2-beaked. Seeds wing-margined. 

 Petals acutish, unguiculate, twice as long as the acute calyx- 

 lobes. Leaves (mostly radical) rounded-heart-shaped, lobed 

 and toothed. Flowers loosely panicled, small, white. 



Sullivantia Ohionis, Torr. & Gr. 



182. (1V6.) Herbs 183 



Shrubs 130 



1 83. Stigmas 4, sessile. Sepals and petals 5. A clus- 

 ter of slightly united, gland-tipped filaments at the base of 

 each petal. Fertile, anther-bearing stamens 5. Pod 1-cell- 

 ed, with 4 projecting parietal placentae, 4-valved, many- 

 seeded. Smooth perennials. Leaves rounded-ovate, cordate 

 or reniform, entire, chiefly radical. Flowers solitary at the 

 end of the naked stems. Petals white, marked with green 

 and yellow veins. Famassia. 



Styles or stigmas 5 or more 184 



184. Stem leafy 185 



Scai>e naked, simple, or ramose. Calyx 5-partedor 

 toothed 188 



185. Pod lO-celled, of 5 united carpels, the cell of each 

 divided into 2 cavities by a partition projecting from the 

 back of the carpel. Seeds 10. Sepals, petals, styles and 

 stamens 5, the latter united in a ring at the base. Herbs 



