EENTAN^RIA. PENTAGTNIA. 205 



should be called S. ^entiamides, a comparison which must 

 tend to mislead, as its affinity, if any, to that genus, is 

 entirely fanciful. 



Order IV — TETRAGYNfA, 

 296. PARNASSIA. L. (Grass of Parnassus.) 

 Cfliia; 5 -parted, persistent. Petals 5, Lepan- 

 thia (nectarys) 5, inserted upon the claws of the 

 petals? ciliate, filaments with globose tips. Cap- 

 side 2-celled, 4-vaIved. Receptacle in the mid- 

 dle of each valve. Seeds membranaceously 

 margined. 



Leaves radical, cordate, nerved; scape unifoliate about 

 the middle, l-flowered; flov/ers white, with pellucid veins. 



Species. 1. P. palustris. 2. caroliniana. 3. asari- 

 foUa. 



A North American genus with live exception of P. pa- 

 ^ustris, which is also common to Europe. 



Order V — PENTAGYNIA. 

 297. ARALIA. L. 



Umbelliferous. — Calix 5-toothed, superior. 

 Petals 5. Berry 5-celled, 5-seedcd. — Umbells in- 

 vohicellate. 



Arborescent, shrubby, or herbaceous; leaves entire, 

 lobed, digitate, or repeatedly pseudo-compounded. 



Species. 1. A. nvdicaulis. 2. racemosa. (called Spike- 

 nard.) 3. hispida. 4. spinosa. (.\ngelica-tree.) 



The remaining species of this genus are indigenous to 

 the tropical parts of America; there are also 3 species in 

 Japan and 1 in China. 



?.98. STATiCE. L. 



Calix 1 -leaved, entire, plaited, scariose. Pc- 

 tals 5. Seed 1, superior. 



Subgenera. — Armeria. Scape simple, flowefs Capi- 

 tate, common calix many -leaved. 

 T 



