PENTHORACBAB 159 



Family 2. CRASSULACEAE DC. Stone-crop Family. 



Stamens as many as there are sepals. 1. Tillaea. 



Stamens twice as many as there are sepals. n. Sedum. 



1. TILLAEA L,. 

 1. Tillaea aquatica h. Pigmy-wEEd. (Man. p. 473 ; I. F. /. i8og.) 

 Muddy banks of streams, N. S. to Md. mainly near the coast. Also in 

 Eu. — Pennsylvania : Philadelphia. 



2. SEDUM L. 



I,eaves of the flowering stems with flat blades. 

 Relatively tall plants, with erect stems. 

 Flowers dioecious : sepals and petals mostly 4 ; corolla yellowish green. 



I. 5. roseum. 

 Flowers perfect : sepals and petals 5 : corolla white, pink or purple. 

 Corolla purple : petals twice as long as the sepals. 2. 5. Telephium. 

 Corolla white or pink ; petals 3-4 times as long as the sepals. 



3. S. telephioides. 

 Relatively low plants, with decumbent or creeping stems. 4. 5. iernatum. 

 I<eaves of the flowering stems as thick as broad or nearly so. 5. 5. acre. 



1. Sedum roseum (L.) Scop. ROSBR.00T. RoSEwoRT. (Man. p. 

 474; I. P. y. 1810.) In rocky places, Lab. to Me. and Pa. Also in 

 Eu. and Asia. — Pennsylvania : Bucks, isfockamixon Rocks ; Wayne, on 

 high cliff off Pt. Jervis. 



2. Sedum Telephium I/. Orpine. Live-forever. (Man. p. 474 ; 

 I. F. /. 1811.) In fields and along roadsides, Quebec to Ont., Md. and 

 Mich. Nat. from Eu. and native of western Asia. — Pennsylvania : Mon- 

 roe ; Northampton ; Bucks ; Lancaster. 



3. Sedum telephioides Michx. American Orpine. (Man. p. 474 ; 

 I. F. /. i8/2.) On dry rocks, Pa. to western N. Y., Ind., N. C. and Ga. 

 — Pennsylvania : Northampton (Schweinitz List) ; Fulton. 



4. Sedum tematum Michx. Wild STOnECROP. (Man. p. 474; I. 

 F. y. 1818.) On rocks, N. Y. to Ind., Ga. and Tenn. — Pennsylvania: 

 Chester ; York ; Lancaster ; Monroe ( Tanners ville) ; Pbrry ; 

 Dauphin ; Huntingdon ; Venango ; Brie ; Allegheny. 



5. Sedum acre L. Wall-pEppER. Mossy Stonbcrop. (Man. p. 

 474; I. F. /. 18/J.) On rocks and along roadsides, N. B. to Ont., and 

 Pa. Nat. from Eu. and Asia. — Pennsylvania : Northampton ; Phila- 

 delphia ; Columbia ; Clinton. 



Family 3. PENTHORAOEAE Rydb. Virginia Stonecrop Family. 

 1. PENTHORUM L. 

 1. Penthorum sedoides L- Ditch or Virginia Stonecrop. (Man. 

 p. 475 ; I. F. y i8zi.) In ditches and swamps, N. B. to Minn., Fla. and 

 Tex. — Pennsylvania : Northampton ; Bucks ; Chester ; Lancaster ; 

 Schuylkill ; Delaware ; Erie ; Allegheny. 



