78 nOMlMON CANADIAN WILD PLANTS. 



«. IIEV'OIIKUA, L. Alum-koot. 



1. H. Ameriea'na, L. (Common Alum-root.) Stems 2-3 

 feet high, glandular and short-hairy. Flowers small, in a 

 loose panicle. Petals not longer than the calyx-lohes. 

 Stamens and style exserted. — S. W. Ontario. 



2. H. his'pida, Pursh, has larger flowers in a very narrow 

 panicle, and taller stems, with long spreading hairs. Sta- 

 mens short, but soon exserted. — ^N. W. prairies. 



7. CIIRYSOSPJLE'NIOI, Toum. SOWEN Saxifkage. 

 C. Ameriea'num, Schwein. A low and delicate smoi|tt»j: 

 herb, with spreading and forking stems. Flowers greenish- 

 yellow, iMcpnspiouous, nearly sessile in the forks. — Shgjf^ 

 wet places. 



Order XXXIV. CRASSULA'CE.^. (Orpine Family.) 



Succulent herbs (except in one genus), chiefly diiTering 

 from Saxifragaceae in having symmetrical flotoer a, the sepals, • 

 petals and carpels being the same in number, and the 

 stamens either as many or twice as many. 



Synopsis of tltc Clci>crn. 



1. Pen'tlioi'iiiii. Not'succulent. The carpels united, forming: a 5- 



celled pod. 



2. Scdum. Succulent. Carpels distinct. 



1. PES'TIIOKIIM, Gronov. Ditch Stone-ckop. 

 P. sedoT'des, Gronov. Not succulent. Sepals 5. Petals 

 5, if any ; sometimes wanting. Stamens 10. Pod S-angled, 

 5-horned, and 5-celled. Leaves scattered, lanceolate, acute 

 at both ends. A homely weed, with greenish-yellow flowers ' 

 in a loose cyme. — Wot places. (Parts of the flowers occa- 

 sionally in sixes or sevens.) 



2. SEDUSI, Touvn. STONE-CRor. Oepine. 

 1. S. acre, L. (Mossy Stonb-crop.) Leaves very thick 

 and succulent, crowded, very small. Petals yellow. A 

 spreading moss-like plant, which has escaped from culti- 

 vation in many places. — Eoadsides. 



