KANUNCDLACEiE. 10 



8. THALICTRUM, Tournefort. 



1, T. polycarpuin, Watson. Akenes in dense heads, 2 or 3 line* long. 

 JL T. occidentalis, Gray. Akenes 1 to 6, 3 or 4 lines long, narrower. 

 %, T. eparsiflorum, Turcz. Anthers obtuse; fruit heads nodding. 



4. TB^TJTVETTERIA, Fischer & Meyer. 

 1. T. grandia, Nutt. Slender: leaves few, 5,7-lobe(i, laciniate-toothed. 



0. MYOSTJBUS, Linnaeus. 



1. M. nunimTis, Linn. Receptacle in fruit 1 or 2 inches long. 



2. M. aristatus, Benth, Receptacle shorter, akene-s beaked. 



3. M. sessilis, Watson. Flowers sessile: fruit heads 2 to 6 lines long. 



6, BANTTNCTTLUS, Linn. 



* AqucUic: lexivt* round-reniform and lohed or, whin svJymersedt JUiform-dissectecL 



Petals white: akenes wrinkled crosswise 1, 2 



Petals yellow: akenes not wrinkled 



" • Not aquatic : leaves all radical : scapea naked or 1-2 hracteaUy mo9tly l-JUncered: 



»epals petaloid. 



Sepals white: petals minute: leaves cordate or reniform 3 



Sepals pinkish, persistent petals pink: leaves compound 4 



* • • Usxudly growing in wet places. 



Leaves all entire, oval or narrower 7, 8, 9, 10 



Leaves rather fleshy, simple or 3-foliolate; lobes rounded 5, 12 



" • • * 2iot aquatic but some species growing in wet places: leaves variously divided 



or lohed. 



Alpine, tufted: leaves round-reniform to cuneate, small 11 



Some or all the leaves temately compound : stems branching. 



Petals usually more than 6 15 



Petals usuaUy 6 13, 16, 17, 18, 10 



1. R. aquatilis, Linn. var. heterophyllus. Sepals deciduous: receptacle hairy. 



2. H. Lobbii, Hiem. Sepals persistent enclosing the few akenes. 



3. R. hystriculu-s Gray. Akenes 2 or 3 lines long, tapering ; beak hooked. 



4. R. Andersoni, Gr. Akenes bladdery, 4 or 5 lines long. 



6. R. Cymbalaria, Pursh. Akenes enlarging upward; beak oblique. 



6. R. multiflduB, Pursh. Petals 5 to 8 with a large scale; beak straight. 



7. R. pusillus, var. Liindheimeri, Gr. Akenes granulate. 



8. R. Flaminiila, Linn. var. reptans, Gr. Akenes subglobose. 



