190 



: i. vn. i Miin.i.liT.i: K I'Mlilii. \ TK-I \MII.Y. 



. CmTrroTOJsni. Prtll nmbals with unequal 



of. Uirrmlly compressed, wlnslese. LMVM S-Mfeta. 



. Kruit oral, laterally compressed, wintfl 



iual rays. Fralt nearly ob- 



ate. 



pnased, wingless, Loaves somewhat 



: : 



bi-plnnatlfld. 



. Xrirx. Calyx-teeth obsolete. Fruit roundish, laterally compressed, 

 wliwlaw. Lowe* leaves plnnaWy parted. 



14. HuACUfv. Fruit dorsally eompnssed, flat, with a broadly winged 

 unnrin. Learn t.Tnt.-lr parted. 



14. IiACcra. Fruit oblong, not compressed, cliitlird with prickles in sepa- 

 rate rows. 



15. (KiioRiiiii Fruit linear, clarate, tapering at base, with bristly ribs. 



16. Coxii-M. Calyx-teeth obsolete. Fruit orate, Uerally compressed, with 

 6 un.lulati ribs. Leaves bl- or trl-tematcly decompound. 



i:uv. Calyx wllli a distinct tube. Fruit globose. Learcs pln- 

 naWy parted. 



Flawer* yellow. 



T. ZtaA. Fruit oral, laterally compressed. Learn bi-ternately dlrlded. 



:r. Krnlt oblong, laterally compressed, with obtuse ribs. 

 Leaves bl-trmatcly dissected, with n!lform segments. 



v.-V Fruit oral, dorsally compressed, Try flat, wlUi a thin, 

 broadly winged margin. Leaves innately parted. 



1. IIYDKOC6TYLE. 



Calyx obsolete. Petals ovate, entire, acute, spreading, with 

 tli<> |M,i'nt n.it intleeto.l. Fruit flattened laterally, with a narrow 

 commissure. Carpels without villas. Per. 



I. H. Americana. Penny-wort. 



Smooth and shining; stem flexuons, branching, often decumbent; leaves or- 

 bkuhr-rcniform, somewhat lobed, doubly crcnate ; flowers minute, greenish, 

 In axillary, sessile, few-flowered, greenish, capitate umbels; fruit very minute, 

 orbicular. A smooth and delicate plant, growing In wot, grassy places. Very 

 common. Stems ' V long. Junt Aug. 



2. SANtOULA. 



Flowers polygamous. Calyx-tube echinale. Petals obovate 



with a long inflexed'potnt Fruit subglolxwe, anne.l \\itli 



hooked prickles. Carpels not ribbed, furnished with numerous 



Per. 

 I. S. Mariliindiea. Saniclc. 



Leares digltately D 7-parted, mostly radical ; segments oblong or cunoato 

 Inclsely serrate ; caullne leares few, nearly sessile ; flowers greenish, small, 

 mostly barren; nmbcls with few rays, often proliferous; nmbellct) with numer 

 onsrays; Inrolncre A-leared, serrate ; sterile flowers numerous, on pedicels as 

 long as the fertile, senile flowers; style elongated, conspicuous and recurred. 

 A common plant 2 8 feet high, dlchototnons at summit In woods and thick 



a DISCOPLECEA. 



Calyx-teeth subulate, persistent Petals ovate, entire, \\itl 



minute indexed point Fruit ovate, frequently .li'lymou- 



Carpcls with 3 prominent, filiform, dorsal ribs, and 2 lateral ones 



miile.l with a thick margin. Intervals with single villffi. Seeds 



nearly round. An. 



1. D. capillacea. Bishop-weed. 



Erect or procumbent ; leares rery flnely dissected, with soUceous segments 

 umbels with 8-10 rays ; leaflets of the Inrolncre S 6, usually 8-partrd ; Inrolu 

 eels filiform, longer than the umbellets: flowers white; fruit ovate. A very 

 smooth plant, 1 foot high, in silt marshes. Mass, B. L, and southward. July 

 Oct. 



4. CICtTA. 



Calyx-margin with 5 broad teeth. Petals obcordate, with nn 

 inflexf'l jiiiint! Fruit rnundili. ili.lynmu. Carpels with 5, flat 

 tish, equal rili->. 2 "f tli<-m marginal Intervals filled with i-in^l 

 vittc. Commissure with 2 vitue. Carpophore 2-parted. Seed 

 terete. Itivoliu-res few-leaved, or none. Involuccls many-li-av<>.! 



1. C. maculata. Water Hemlock. 



Stem smooth, hollow, often streaked with purple; lower leares trUernsU-1 

 dlrtded ; upper ones Ultimately divided ; leaflets lanceolate, acuminate, wrrate, 

 smooth ; flowers white. In axillary and terminal umbels ; Involucre-leaves none 

 or 1 S small ones ; Inrolneel of 54 linear divisions; calyx and style persist 

 ml; root thick, fleshy, poisonous. A common plant in wet meadows, 48 fee 

 high, with decompound loaves. The terminal leaflet Is often pinnate or qnln 

 oat*. July Aug. 



2. C. bulbifera. Bulbous Cicutq,. 



Stem round, hollow, strlaU, green ; axils of the branches bearing small bulb 

 Ms; ler* bllcmately dlrlded ; lean>t mostly llni-nr. varying from almost 







setaceous to linear-lanceolate; flowers small, white. In axillary and terminal 

 mbels ; Inrolucols setaceous. A slender species S bet high, In swamps. 

 lot so common as the last Aug. 



6. stun. 



\-margin 6-t""tl>'-.l >r nl"" 

 ..n iiiti.vt.,1 point. Fruit nearly oval. 

 i!>- \ ittic usually several in each interval. C'arp.'|'li.>n- -J part -M. 



1. S. linearc. 



Long-lean J *u 



Stem angular, sulcate ; leaves pinnate; leaflets linear or linear-lanceolate, 

 flnely serrate ; flowers white, small ; involucre* with 6-6 linear dlrWons ; 

 calyx-teeth minute ; (rait obovate. A tall and stout plant, 8 6 foot high, with 

 arrow leaflets. Common, especially near the sea-coast July. 



. CKTPTOT^NIA. 



Calyx-margin obsolete. Petals obcordate, with an inflected 

 mint. Fruit linear-oblong or ovate-oblong. Carpels with fi 

 <jual, obtnse ribs. Villas very narrow, twice as many as the 

 ribs. Carpophore free, 2-parU-d. Per. 



I. C. Canadensis. Hone-wort. 



Stem smooth, branching above; learea 8-partcd, petlolalo; MfrmcnU ovata, 

 entire, or 4 8-lobed, doubly serrate ; Ueth coarse, mucronate ; umbels Irregn- 

 ar, axillary and terminal, somewhat paniculate, with very unequal r> 

 re small, white ; Involucres none; Inroluccls few-leaved ; fruit ol 



.n plant In moist woods 12 feet high, with the radical leave* 

 K'lloles, and distinguished by Its Irregular umbels and mnbelleta. July. 



7. ZlZIA. 



Calyx-margin obsolete, or with very minute teeth. 1'etiils 

 oblong, with an inflexcd point Fruit oval, didymous. (':H|..!S 

 5-ribbed, with the lateral ribs marginal. Intervals with 1 S 

 vitte. Commissure with 3 4. Involucre none. Involucels few- 

 leav.-.l. Per. 



1. Z. aurea. Golden Alexander. 



SmooUi; stem erect, or somewhat decumbent, sulcate, branching above; 



i ornately divided ; segments oblong-lanceolate, serrate ; umbel 1 

 short rays ; flowers small, deep yellow ; in volucels of 2-8 very small leaflet* : 

 fruit elllpUeal, brown when mature. Not uncommon In woods and fl.Oils 

 Stem 6' \y high. MayJtuu. 



8. CAEUM. 



Calyx-margin obsolete. .Petals obovate, emarginatc, with an 

 inflexed jMiint. si\l,^ spreading, dilated at base. Frail oval, 

 c.,iiipr.-<e.l lut.Tally. Cm-pels 5-ribbcd, lateral ribs ma> 

 1 1 1 1 . i \ als w i I h hi ngle vittax Commissure with 2. Per. 



1. C. Carvi. 



Cara tray. 



Leares somewhat bl-plnnatlfldly divided ; segments numerous, linear ; Invo- 

 lucre 1 -leaved, or none ; Involucels none ; flowers white. A common plant In 

 gardens, cultivated for Its aromatic fruit. Stem S feet high, smooth and 

 branching. Lower leaves large, on long petioles, with largo, swelling sheaths. 



9. APIUM. 



Calyx-margin oh-.ilete. I'etak roundish, with an infleete.l 

 point Frnit. r.'iin.li^li, laterally eonipr.-. I- .Vril.l.r.l; 



the lateral ribs marginal. Intervals with single vitlnx Carpo- 

 phore undivided. Biennial. 



1. A. graveolens. Celery. 



Ht.'.n branching, (nrrowed; lower leaves plnnately dissected, on rcry long 



segments broadly cuneate, Inclaed ; upper leaves 8-parted ; segments 



cnneate, lobed and Inclsely dentate at apex ; flowers white. In umbels, with un- 



equal, spreading rays. Cultivated In gardens for Its stem and radical petioles, 



whlc-li when blanched are eaten as salad. July Aug. 



10. VtF.Nfn l.Ult 

 ( ':ilyx-margin obsolete. Petals rcvolute, with a broad. : 



I-'ruit iililinig. winu'whnt laterally eompr. --,-,!. Caip.-lt 

 <>btuse ribs; marginal onm a little broader. Intervals 

 with single vitt; commissure wilh 2. An. 



\. F. vul" Fenml. 



Stem maud, smooth, branched ; leaves blternately dissected, with linear- 

 snhnlata, elongated Mpnents; umbels with numerous unequal spreading rays; 



