Pori'LAK ri.OKA. 



153 



\ 



Avens. (irttw. 

 Calyx Jiell-slmped or tliittisli. 5-cIef t, iiii'l with 5 luldilioiial little lolw s helwpt'ti. IVt iiln 5. .Stitmeiin 

 iiiiiiiy. PiatilH many in u heatl, making akoiics. which are tip|icil with tlu' Htylo, rpmaining as a Ion};, 

 iiiiki'd or hairy tiiil. I'eifniiial horhs : Mowi is siii;;lo or Homowhat coiynih«il. In all our common 

 specieH tliu Htylu is jointrd and hook«-d loiind in tlu> middle. 



* Upper and mostly hairy joint of the stylo falling' (»4F, leaving the lower and smooth portion, which 



riMnains hooki'd at the end : (lowers rather small : root-leaves mostly interruptedly pinnate ; 



stem-leaves oi- lohes 3 to 5. Dry woods and fields. 

 1. WliiTK AVKNS. Smootldsh or dow ny ; petals wliite, as l<>n^ as the eal\ x, akeiies In isily. '/. alhiiiti. 

 a. VllUilNlAN A. IJristly-hairy, stouter than the last ; petals greenish-white, shoiler than tho 



caly.x ; akenes smooth. <t'. VirijiniiiiiHin. 



3. YKI.t.ow A. Hather hairy, large ; petals yellow, loni;er thnn the ealyx. (•'. Mrirtnvi. 



* * Tpper joint ot the stylt; pt;r.sisteiit and feathereil witii loii;^ Iiairs ; flowers rather lar;;<', nod<ling. 



4. W.MKit A. IJoot-leaves with a lar'.^e and rouiidedlohed end leatltt, and some very small ones 



below ; stem-leaves few. 3-cleft or of 3 small leaflets ; jtetals not spreading, somewhat iiotche<l 

 at the broad summit, purplish. AVet l)aiiks of .streams. <>. rivnle. 



Cinquefoil. Polmtilla. 



Calyx open or flat, 5<parteil, and with 3 additional outside lobes alternate with the others, making 

 10. I'ftals 5. Stamens many. Pistils many in a head, on a dry receptac'e, making seed-like 

 akenes, tlie styles falling off. 



* Leaves palmate. Herbs, with yellow flowers. 



1. Norway (^INQUKKOII,. Erect, coarse, hairy ; leaflets 3, obovate, cut-toothed. Fiehls. P. Nor rh ilea, 



2. Ca.nada C. liunner-like stems decundient or spreading ; leaflets 5, obovate-oblong ; i>eduncle8 



long, a.xillary, i-flowered. Fields iind banks. 1\ ('(iiKudnni.i 



3. SlLVKUY C. Low, with spreading branches, white-woolly, as are the 5 leaflets beneath. P. art/nUea. 



* * Leaves pinnate. Herbs (except No. 5) : receptacle of the fruit hairy. 



4. Silver-weed. Creeping, sending up leaves of 9 to 19 cut toothed leaflets, besides little ones inter- 



posed, silvery-white beneath, ami single long-stalked yellow flowers. Wet banks, N. P. A nser'nui. 



5. Shribbv ('. Shrub very bushy, 2° to 4" high ; leaflets 5 or 7, crowded near the fnd of the short 



footstalk, lance-oblong, entire, silky beneath ; flowers yellow. lioga. P. fnitiroxn. 



6. Mar.sh C. Stems asceinling from a scaly creeping base ; leaflets 5 or 7, crowded, serrate, lance- 



oblong ; flowers dull purple. Cold bogs, N. /'. jt'iluKlri.". 



Bramble. Ruhus. 

 Calyx open, dtejdy 5-cleft. Petals 5. Pistils many ; their ovaries ripening into little berry like 

 grains (or rather linijicUtK), Tuaking a kind of compound berry. leather shrubby or herbaceous 

 }ierennials. 



§ I. KASPIjERRY. Fruit falling from the dry receptacle, usually with the grains lightly cohering. 

 * Leaves simple, lobed : flowers large and showy : petals spreading. 



I. Purple FloWERINO-Rahhberkv. P.ristly and clammy with odorous brownish glands ; le.-xves 

 rounded, with 3 or 5 pointed lobes ; flowers in a corymb, rose-purple ; fruit flat. Rocky banks, 

 N. Fl. summer. R. odoriUna. 



a. White Flowering-R. Like No. i, but the flowers white and smaller. N. W. and cult. R. Authtntis. 



