ranuncl'lacka;. (ciu>\vi-o()t family.) 41 



Vnr. terr^Stris, wliioh differs from the ordinary emerset! forms by the 

 stems nseciidin;; from the hiisc and paiiicuhitcly scvcral-Howercd at tlie summit, 

 wlierc tlie leaves are reduced to ol)lou'r or hnear bracts ; no immersed dissected 

 leaves. — Ann ArJjor, Miehij^an, on muddy banks, Miss Clark-. 

 t- -t- Ttirestrial but (jioivinfl in verij wet plnns, f/lahroiis or ticarly so : root fiercn- 



niid : Imrcs all entire or ixire/i/ loot/ied, all or else oil but the lowest lauceolute or 



limar; niri>,ls fortiii,i;; a i/Miular head. (Si'EAKWOKT.) 



4. R. alismsef'blius, (ieycr. (Water Plantain SrEAUwour.) Stems 

 hollow, asoeiidiiij,'( 1°- 2° liijfh), often rootin;r from the lower joints ; leaves 

 lanceolate or the lowest ol)ion<;, mostly denticulate (.J'-.^' lonjr), contracted 

 into a nuirjiined petiole which ex])ands into a membranaceous claspiuf; base ; 

 jK'tals 5-7, brifriit yellow, much lonj^-r than the calyx (.3" -4" loufr) ; carpels 

 Jl'ttliiud, lan/p, j>oiiit(d with a lowj and straii/hl narrow subulate beak: — Common, 

 esjKxially northward. June-Auf^. — Intermediate in appearance between K. 

 Flammula and Lingua, and has been confounded with both, but most resembles 

 the latter. 



5. R, Flammula, L. (Smai.leu SrEAinvoRX.) Stem reclining or 

 ascending, rooting below ; leaves lanceolate or linear, or the lowest oblong- 

 lanceolate, entire or nearly so, mostly petioled (l'-2' long) ; petals 5-7, much 

 longer than the caly.x, bright yellow ; carpels Jiattish but tunpd, mucronale with 

 a short abrupt jioiut. — Shore of L. Ontario and northward: rare, and only a 

 small form (var. intekmedh;s) met with in this country, a span high, with 

 flowers ;J" in diameter, passing into 



A'ar. r6ptans. (C'uEiii»iNG S.) Small, slender, t\\c filiform crecpimj stems 

 rootiixj at all the joints (3'- 6' long; leaves linear, spatulate, or oblong (i'-l' 

 long). — Gravelly or sandy shores and inimdated banks; very common north- 

 ward. June -Sept. (Kii.) 



0. R. oblongifdlius, Kll. Stem erect or ascending, often pubescent 

 below, slender (1° high), dij/hseli/ branched alxtre and many-flowered ; It-ares ser- 

 rnte or dniticniale : the lower long-petioled, ovate or oblong (^'- 1^' long) ; the 

 up])ermost linear; flowers 3" -5" broail ; petals 5, twice the length of the calyx, 

 bright yellow ; stamens numerous ; carj>els minute, almost globular, tipped with a 

 very snuill sessile stigma. (R. pusillus, var. Turr. <$• Gr. Fl. R. Texensis, 

 Kiii/elni.) Wet prairies, Salem, Illinois DelJi, and in S. States. June. 



7. R. pusillus, Poir. Stem ascending, weak, loosely branching (G'-18' 

 long) ; leares entire or obscurely denticulate ; the lowest round-ovate or heart- 

 shaped (^' long), long-petioled, the upper oblong or lanceolate (1'- 1^' long) ; 

 flowers very small; fielals 1 - .'), yellowish, scarcely excerdiny the cah/r and the .'? - 

 10 stamens ; carpels very lurgid, tipped with a minute se.'^sile stignui. — Wet 

 places, S. New York and .xouthward along the coast. June- Aug. 



••-•«-■«- Ternslrial, with annual root, spreadiny by ninuers, ylabious: Unns all 

 rounded and undirideil but coarsely crcnate : carjie/s in fruit forminy an oliouy 

 head. 



8. R. Cymbaliria, Pur-^h. (Sea-side Cuowfoot.) Flowering stems 

 leafless (3'-6' high), 1 -7-flowered ; leaves clustered at the root and on the 

 joints of the long rooting runners, roundish-heart-shaped or kidncy-shupcd, 



L & M— 22 



