PENTHORACEAE 1-59 



FAMII.Y 2. CRASSULACEAE DC. Stone-crop Family. 



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



Stamens twice as many as there are sepals. 2. Sedum. 



1. TILLAEA Iv. 

 1. Tillaea aquatica L. Pigmy- weed. (Man. p. 473 ; I. F. /. 1809.) 

 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. 5. tdephioides. 

 Relatively low plants, with decumbent or creeping stems. 4. .S". iernaium. 

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



1. Sedum roseum (L.) Scop. RosEROOT. RoseworT. (Man. p. 

 474; I. F. /. iSio.) In rocky places, Lab. to Me. and Pa. Also in 

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

 high cliff off Pt. Jervis. 



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

 I. F. f. iSif.) In fields and along roadsides, Quebec to Out., 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. /. 1S12.) On dry rocks, Pa. to western N. Y., Ind., N. C. and Ga. 

 — Pennsylvania : Northampton (Schweinitz List) ; Fulton. 



4. Sedum ternatum Michx. Wild Stonecrop. (Man, p. 474; I. 

 F. /. 18/S.) On rocks, N. Y. to Ind., Ga. and Tenn.— Pennsylvania : 

 Chester ; York ; Lancaster ; Monroe (Tannersville) ; Perry ; 

 Dauphin ; Huntingdon ; Venango ; Erie ; Allegheny. 



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

 474; I. F. /. iS/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. PENTHORACEAE Rydb. Virginia Stonecrop Family. 

 1. PENTHORUM L. 

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

 p. 475 ; I. F. /. 1821.) In ditches and swamps, N. B. to Minn., Fla. and 

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

 Schuylkill ; Delaware ; Erie ; Allegheny. 



