74 SAXIFRAGACEAE (SAXIFRAGE FAMILY) 



SAXIFRAGACEAE (SAXIFRAGE FAMILY) 



Herbs or shrubs with alternate or opposite leaves, with or with- 

 out stipules. Stamens 5-10. Fruit either a capsule or berry. 



SAXIFRAGA 



Herbs with clustered root-leaves, white flowers, 10 stamens, 

 and 2-beaked capsules which sometimes become almost separate. 



S. pennsylvanica, SWAMP SAXIFRAGE. A 

 large plant becoming as much as 6 dm. high ; 

 large, lanceolate, obscurely-toothed leaves; 

 flowers in a large oblong cluster, and divi- 

 sions of the capsule at length divergent. Low 

 meadows. 



S. virginiensis, EARLY SAXIFRAGE. A low 

 plant from 1.5-3 dm. high ; obovate, crenate, 

 toothed leaves; flowers in an open cluster; 

 and the two divisions of the capsule united 

 only at base, divergent, purplish. On rocks 

 and dry hillsides. April to June. 



Saxifraga pennsylvanica, TIARELLA 



Swamp saxifrage. 



Low herbs with root-leaves, and usually 



leafless stems. Small, white flowers in racemes. Petals entire. 

 Stamens 10, long and slender. Ovary one-celled. 



T. cordifolia, FALSE MITREWORT. Leaves rising from a rootstock 

 or from runners, heart-shaped, lobed and toothed, downy beneath; 

 stem 1-4 dm. high, rarely with one or two leaves. Rich woods, 

 April to June. 



HEUCHERA 



Herbs with round, heart-shaped root-leaves. Flowers in small 

 clusters, greenish or purplish. Petals small, entire. Stamens 5. 



H. americana, ALUM ROOT. Stems 6-9 dm. high, glandular and hir- 

 sute with short hairs; calyx regular, 3-6 mm. long; petals about as 

 long as its lobes. Rocky woods. 



H. hispida, ALUM ROOT. Stems 5-12 dm. high, hispid or hirsute 

 with long spreading hairs, scarcely glandular; calyx 6~8 mm. long; 

 stamens longer than petals. Woods. 



