58 CRASSULACEiE. 



2. T. angustifolia, Nutt. Stems rooting, 1 iu. long: leaves 1-2 linea long. 

 Var. Bolanderi, Watson. Stems 3-4 in. high: flower parts iu 3's or 4's. 



3. T. peduncularis, Smith. Pedicels 4-6 lines long in truit: carpels purplish. 



2. SEDUM, Linnaeus, 



Flowers dicEcious, deep purple, parts mostly in 4's 1 



Leaves narrowed toward the base, obtuse 2, 3, 4 



Leaves broadest near the base, acute 5, 6, 7 



1. S. Rhodiola, DC. Stems simple: leaves acute, rarely entire. Alpine. 



2. S. spathulifolium. Hook. Glaucous: petals yellow, 3 lines long, acute. 



3. S. Oreganum, I\utt. Not glaucous: petals pale rose, much exceeding the stamens. 



4. S. olDtusatum, Gr. Similar to 2 & 3: flowers pedicelled; petals pale yellow, broader. 



5. S. variegatum, Watson. Radical leaves slender: petals yellow, often purple- veined. 

 C. S. radiatum, Watson. Carpels broad, the beaks horizontal, star-like: petals yel. 

 7. S. pumilum, Benth. Annual; 1-3 inches high: leaves 1-2 lines long: carpels 1- 



seeded. 



3. COTYLEDON, Linnaeus. 

 Leaves cylindrical and somewhat 3-sided 1, 2 



Leaves flattened: carpels nearly distinct, erect. 



Petals united to the middle, red , 3 



Petals united | the length, pale yellow, 4 lines long 4 



Petals united only at the base, yellow or orange. 



Leaves glaucous, white dusty or mealy. . . 5, 6, 7, 8 

 Leaves not glaucous or mealy, reddish 9, 10 



1. C. edulis, Brewer. Petals widely spreading, yellowish. San Diego. 



2. C. viscida, Watson. Leaves numerous, very viscid: corolla reddish. S. Cal. 



3. C. pulverulenta, B. & H. Densely white-dusty: leaves 2 or 3 inches broad. 



4. C. Oregonensis, Watson, Leaves spatulate, obtuse: racemes axillary. 



5. C. lanceolata, B. & H, Petals orange, mid-vein glaucous; calyx-base broad. 



6. C. farinosa, B. & H. Usually densely mealy: petals lemon yellow. 



7. C. csespitosa, Haworth. Sepals ovate, 2 lines long or less: petals yellow. 



8. C. laxa, B. & H. Petals orange-yellow, keeled, prominent mid-vein glaucous. 



9. C, Palmeri, Watson. Flowering stem red: petals pale yellow, S, Cal. coastv 



10. C, Lingula, Watson. Leaves an inch broad, 2 or 3 inches long, acute. 



DROSERACE^. 



1. DBOSEBA, Linnaeus. 

 1, D. rotundifolia, L. Leaf -blade rounded, 2 6 lines broad: petals 2 lines long. 



