Il8 SAXIFRAGACEAE (SAXIFRAGE FAMILY) 



GORMANIA 



Low, Sedum-like, perennial by horizontal rootstocks. Leaves spatulate 

 to orbicular; stem leaves smaller. Flowers cymose or thyrsoid. Stamens 

 10, on the corolla. Carpels many-seeded, united below, erect or nearly 

 so even in fruit. (Honor of M. W. Gorman, an American botanist.) 



A. Corolla red or pink. U. G. laxa 



AA. Corolla yellow. 

 B. Corolla segments long-acuminate, much exceeding the filaments. W. C. E. 



G. oregana 



BB. Corolla segments acute to acuminate, little longer than the filaments. 

 C. Leaves spatulate. E. G. watsoni 



CC. Leaves orbicular. E. G. debilis 



SEDUM (SXONECROP) 



Flowers clustered ; clusters often i-sided. Calyx 4~5-lobed or -parted. 

 Petals distinct or united at base, in ours yellow or purple. Stamens 8 or 

 10. Carpels distinct or united at the very base, few- to many-seeded. 

 (L. sedere = to sit; because the basal tuft of leaves is often flat on the 

 rocks.) 



A. Leaves spatulate or obovate, widest above their middle, flat. 



B. Flowers purple, dioecious; racemes not i-sided. C. E. S. integrifolium 



BB. Flowers yellow, perfect; racemes i-sided. 



C. Follicles erect or nearly so; leaves with line of pits underneath near margin. 

 W. E. S. spathulifolium 



CC. Follicles widely spreading; leaves without a line of pits. 



D. Leaves of sterile shoots opposite; cyme branches short, mostly simple. W. C. 

 E. S. divergens 



DD. Leaves alternate; cyme branches long, forked. 



E. Biennial, 2.5 dm. or less high, not forming offsets. C. S. leibergii 



EE. Perennial, i dm. or less high, forming offsets. W. S. woodii 



AA. Leaves linear to ovate, widest at or below their middle, terete or flat. 

 F. Perennial; leaves linear to lanceolate. 

 G. Leaves linear, not ciliate; follicles erect or nearly so. W. C. E. 



S. stenopetalum 



GG. Leaves linear-lanceolate to lanceolate; follicles widely spreading. 

 H. Leaves not ciliate. W. C. E. S. douglasii 



HH. Lower leaves ciliate. U. S. ciliosum 



FF. Annual; leaves oblong or ovate-oblong, 5-12 mm. long, 2-4 mm. wide. W. 



S. radiatum 



SAXIFRAGACEAE (SAXIFRAGE FAMILY) 



Herbs, but sometimes shrubby. Leaves opposite or alternate, 

 simple or compound, often palmately veined. Flowers mostly per- 

 fect. Sepals 4-5, united to nearly distinct. Petals o or 4 or 5, 

 alternate with the sepals. Stamens as many or twice as many as 

 the sepals, rarely fewer, on the calyx. Ovary superior or partly injerior, 



