Uentaria. Xlil. CRUOil'^ElUE. iO"? 



6. A. DENTATA. Tun: & Gray. 



Plant somewhat scabrous ; radical lis. obovate, petiolate, luiequally and 

 sharply dentate ; cauiine ones oblong, araplexicaul; pet. minate, spatnlate, as 

 long as the sepals ; slig. subsessile ; sillqtie short.—® River banks, Western 

 States ! Stem slender, ascending, 1— 2f high. Petals white, with a purplish 

 tinge. Siliques i' in length. Apr. 



16. CARDAMlNE. 



Gr. Kaplia, hCirt, Sajiao}, to strengthen ; fiom its stomachic properties. 



Calyx a little spreading ; silique linear, with flat, veiuless valves, 

 llarro^Yel■ than the dissepiment, and often opening eiastically ; stigma 

 entire : seeds not margined, with a slender funiculus, 0=. — Mostly %. 

 Fis ichite. 



1. C. HiRsuTA. (C. Pennsylvanica. Miihl.) Pejinisylvanian Cardamine. 

 Lvs. pinnate or lyrately pinnatifid; Ifts. entire, or sparinglv repand-den- 



tieulate, those of the radical leaves oval-oblong, of the cauiine linear-oblong, 

 the terminal one longest, about 3-lobed ; jye/.'oblong-cuneate; sihqucs evect, 

 with a very short style.— (J) or % A variable plant common in wet places 

 throughout the U. S. Stem 8— Ki' high, mostlv smooth. Leaflets 2—5 pairs, 

 4—12" long, smoothish. Fls. small. Siliques about I' long, 12— 18 seeded. Jn. 



2. C. ViRGixiCA. (C. hirsuta. /?. Hook.) Virginian Cardamine. 



Lvs. lyrately pinnate^ Ifis. with a single tooth on one or both sides; pet, 

 nearly twice as long as the calyx; rac. strictly erect; slig. sessile; sill(iue\ox\g, 

 incurved, erect. — ^ A small and delicate species, much resembling the last, 

 but probably distinct. Found on dry hill-sides, Vt. Ct. to Ky. and Mo. Stem 

 4 — 8' high, slender, lealy. Leaflets 2 — 4 pairs with a trilobate odd one, oval, 

 I — 2" in length, those. of the upper leaves 3 — 5'' long, but very narrow. Petals 

 small. Siliques tiliform, 1' long. Jn. 



3. C. praTkxsis. Field Card-aviine. 



St. erect or decumbent,- simple; lvs. pinnately 7 — 15-foliate ; Ifts. petio- 

 late, subentire, lower ones suborbicular, upper linear-lanceolate ; sty. distinct. — 

 % Swamps, N. Y. to Arctic Am. Whole plant smooth. Stem round, striate, 

 10 — l(j' high. Leaves lew, 1^ — 2' long including the petiole. Leaflets of the 

 root-leaves 1 — 3" diam., of the cauiine 3 — G" by f ". Flowers large, few, in a 

 terminal raceme. Petals white or rose-color. Siliques nearly 1' in length, 

 erect. Apr. Mjiy. 



- 4. C. ROTUNDiFOLn. Miclix. (C. rhomboidca. DC. Arabis. Pars. Nutt.) 

 Glabrous or somewhat hairy; Zi-5.. entire or repand-toothed, ra^ita^ o7ies 

 orbicular-ovate, on long petioles, cavUnc oval or oblong-lanceolate, petiolate 

 below, sessile above, dentate. — % Another variable species vvith rather large, 

 white or reddish flowers. Stems 6 — 12' high, angular or striate, mostly erect. 

 Leaves of root 10 — 18" diam., on petioles 2—4' long. Racemes about 3' long, 

 12 — 20-flowered. Petals 2 — i times as long as the calyx, Siliques spreading, 

 6—12" long. Apr. May. 



a. T. & G. Ri. mostly tuberiferous ; sf. erect; lmverste7n Its. rhomboid-oval ; 

 pel. large. — Wet meadoAvs, Conn. Vt. Dr. Robbing. 



/?. T. &. G. Rt. mostly fibrous ; st. decumbent, branching; lvs. all petio- 

 late; pet. smaller, purplisii. — Shaded springs and rivulets, N. Y. 

 4. C. EEi.LiDiFOLiA. (C. Totundifolia. Bw. not Michx.) 

 Lvs. smoolh, radical ones orbicular-ovate, nearly entire, petiolate; cau- 

 iine ones entire or 3-lobed; siliques erect. — A minute species on the summits of 

 the White Mts. Abel Slorrs! &c., also Arc. Am. to Calif. Stem 1^ — 3' high. 

 Leaves mostly radical, broadly oval or ovate, i' long, on petioles as long as 

 ihe stems. Fascicles corymbose, each of 3 or 4 white flowers. Petals oval, 

 obtuse, about twice as long as the cal}''^. Jl. 



17. DENT ARIA. 



Lat. dens, a tooth ; from tlra tooth-like projections of the rhizoraa. 



Sepals converging ; silique lanceolate, with flat, veinless, revolute 

 IS 



