44 The Vegetation op the 



* tNasturtiuni siuuatum Nutt. bottom 1. 1 Miss.— Pacif. 



Nasturtium palustre D.C. bottom VIII. 6 N.E. — La.Pacif. — Arct. 

 ]S"asturtium lacustre Gr. inundated bottom II. 4 Can. N.Y. Ky. La.— Up. 



Miss. 

 Dentaria laciniata Muhl. woods V. 5 Fla.— La. X.E. — Up.Miss. 

 Cardamine rhomboidea D.C. bottom, springy places V. 7 Atl. — R.Mts. G. — 



Can. 

 Cardamine hirsuta L. bottom VIII. 8 Atl.— Pacif. G.— Arct. 

 Arabis dentata T.Gr. bottom III. 3 K.Y.—Tenn.— Up.Miss. 

 Arabis canadensis L. shady hillsides IST. 4 N.E. — Ark.— Can. 

 Arabis laevigata D.C. rocky hillsides N. 4. Can.— Va. N.E. — Up.Miss. — Ark. 

 Thelypodium pinnatifidum Wats, bottom V. 5 Oh.— 111.— La. 

 Sisymbrium canescens Nutt. fields V. 8 N.Y. — Fla.— La. — Cal. — Arct. 

 Draba caroliniana Walt, hillsides V. 8 N.E.— Ga.^La. — Up.Miss. 

 Lepidium virginicum L. roadsides, waste places X. 8 Atl.— La. — Up.Mo. 



Capparidaceae. In N. Am. 9 Gen. 2.5 Spec. 



Polanisia graveolens Raf. sandy banks IV. Can. — Fla. — Ark,— Up.Miss. 



ViolacesB. In N. Am. 2 Gen. 3.3 Spec. 



Jonidium concolor B.H. shady woods II. 3 N.Y. — All. — 111. 



Viola cucullata Ait. woods and prairies VIII. 5 Atl.— Pacif. G. — Arct. 



Viola cucullata var.palmata Gr. woods I. 4. 



Viola sagittata Ait. dry openings III. 4 Atl.— Miss. G.— Can. 



Viola delphinifolia Nutt prairie III. 5 111.— Up.Mo. 



Viola pedata L. dry openings II. 5 Atl.— Miss. G.— 53° N.L. 



var. bicolor. 



Viola pubescens Ait. woods VI. 4 N.E.— All. (Ga.)— R.Mts. 



Oistacese. In N. Am. 3 Gen. 17 Spec. 



Helianthemum canadense Michx. open woods, hillsides II. 4 Atl.— Miss. G. 



— Can. 

 Lechea major Michx. dry woods, hillsides III. 5 Atl.— Miss. G.— Can. 

 Lechea minor Lam. dry woods, hillsides II. 8 Atl.— Up.Mo. G.— Can. 



HypericaceSB. In N. Am. 3 Gen. 3.5 Spec. 



Hypericum pyramidatum Ait. banks II. 3 N.E. — 111. Wise. 

 Hypericum corymbosum Muhl. copses V. 5 N.E. — N.Ca.— Miss. 

 Hypericum sph»rocarpum Michx. banks II. 4 Oh.— 111. — La. 

 Hypericum nudiflorum Michx. copses V. 5 N.E.— Up.Miss. Fla.— La. 

 Elodes virginica Nutt. swampy bottom I, 2 N.E.— Up.Miss. Fla. — La. 



Caryophyllacese. In N. Am. 12 Gen. 129 Spec. 



Silene stellata Ait. copses VI. 4 N.E.— All.— La.— Up.Miss. 



Silene nivea D.C. bottom II. 4 Pa.— 111. 



Silene antirrhina L. dry hills V. 3 Atl.— Cal. Or. Tex.— Can. 



Stellaria longifolia Muhl. grassy places II. 6 N.E.— Va. — La. — R.Mts.— 



Alaska. 

 Arenaria lateriflora L. shady hillsides I. 4 N.E. — Up.Mo. Or. Alaska. 



Cerastium triviale Link, (viscosum L. herb) grassy places I. 3 N.Engl. — Fla. 



— N.Mex. — Alaska. 

 Cerastium nutans Raf. moist places VII. 4 Vt.— Minnes. N.Ca.— N.Mex.— 



Cal. 



Paronychieae. In N. Am. 5 Gen. 17 Spec. 



Anychia dichotoma Michx. openings VI. 8 N.E. — Up.Miss. Ga— Ark. 



'■■The species marked f, founci long ago at a single place, have not been .seen again, and may 

 partly be oxtinct in our flora 



