2O General Key to the Families 



ORDER XX. SARRACENIALES 



XXXIV. DROSERACE^:. SUNDEW FAMILY 



Bog-herbs, mostly viscid : glandular ; leaves in bud rolled up from 

 the apex to the base as in ferns, alternate or crowded, entire ; flow- 

 ers hypogynous, penstamerous, calyx imbricated, petals convolute; 

 fruit a capsule, seeds numerous, anatropous. 



I. DROSERA. L. 



1. D. rotundifolia. L. Round-leaved Sundew. 



2. D. longifolia. L. Long-leaved Sundew. 



ORDER XXL ROSALES 



XXXV. CRASSULACE^E. ORPINE FAMILY 



Succulent smooth herbs ; leaves simple, alternate, mostly sessile ; 

 flowers usually cymes, small, perfectly symmetrical ; fruit a dry 

 indehiscent pod opening down the ventral suture, many-seeded. 



I. SEDUM. (Tourn.) L. 



1. S. roseum. (L.) Scop. Rosewort. 



2. S. stenopetalum. Pursh. Stonccrop. 



XXXVI. SAXIFRAGACE^E. SAXIFRAGE FAMILY 



Herbs or shrubs of various aspect, with bland or astringent 

 juice; leaves alternate, sometimes opposite, or more frequently 

 basal; flowers perfect, racemose, cymose or paniculate, stamens 

 and petals nearly always inserted on the calyx; fruit capsular, 

 usually beaked. 



TRIBE SAXIFRAGES 



I. LEPTARRHENA. Brown. 



i. L. amplexifolia. (Sternb.) ser. DC. Leptarrhena. 

 II. BOYKINIA. Nutt. 



i. B. occidentalis. T. and G. Western Boykinia. 

 III. SAXIFRAGA. (Tourn.) L. 



1. S. bronchialis. L. Common Saxifrage. 



2. S. cernua. L. Nodding Saxifrage. 



