

(•(HILTKH AND ROSK NORTH AMERICAN I'MMKhLU'KRAK. lOl 



26. DERINGA Adims. Kain. IM. 2: 4HS. IT«;:',. 

 rnji>li>tiir„iii IX'. Cull. Mt'iii. 5:IL'. IHI'U. 



Ciilvx t«'«>tli «)l>,s<)I('t»*. Kiiiit lliiltciicd liitt'iallv. liiiciir-oMoii^. tjlji- 

 liioiis. Ciii'jM'l with olitu.sc ('(|ual ril>s. ciicli .suhtciidcd l»\ u \ t'i'v broad 

 j^ioup of strcnytlii'iiiiiji' wWs ('J {groups also on tlir coininissural side), 

 tvlopodimn slender conical. Oil-tiilics solitary l»cncatli cadi ril) (as 

 as in the intei'vals), '1 to 4 on the 

 ((iniinissiiral side. Seed face ])lane (»r 

 iK'iii'ly so. 



(ilabroiis perennials, with thin tri- 

 foliolate leaves, no inV(duci'e, involiu-els 

 of Miinute hractlets oi" none, and white 

 llowers. 



Type species, Slxtin idinuhnxi' L. Sj). 

 I'l. i : ^l:^± IT5M. 



A ucnus of ;i or 4 s])ecies. on(» <d' 

 uliicli is North American. 



1. Deringa canadensis (L. ) Kunt/e. Rey. 

 (ren. PI. 1: 'm\. iS'.tl. Fio. 'Ih. 



Sis(i)i riiiinilriim' K. S|). I'l. 1 : li.'i'J. 17.">.'1 

 ('nililitUiitiiii <-<iitii<li'iit)i)^ DC. I'mdr. 4: IIH. 



Kicct. rather slend<>r. H to !> dm. hiyh, ^ ,.- i> i i -w 



tirunchinjif; leaflets larji-e, ovate, 5 to 18 



(Ml. lonj;. acute or jicnminate, doubly serrate, ofteji lohed; lateral 

 Iciitlets ohli(|ue at t)ase. usually sessile oi' neai'lv so; terminal leaflet 

 at)rui)tly narrowed into a jx'tiolule (usually winj^ed); uudiels irrej^ular 

 and unecpially f«>w-rayed: pedicels very uneipial, from '1 to 'M) nun. 

 Idiiji': fruit 4 to <• nun. lonj>\ often Itecominji- cur\ed. 



Type locality, "in America sept^Mitrionali." 



From Xew Hrunswick to (leorji-ia. and west to South Dakota and 

 Texas. 



SiiKiiiii IIS I'.niiiiiiirii: Very few of the s|H'rinieiis of thin i-iiiiiiiiiin spci'U'.'J arc ciltMl. 



OniaIUo: Kill^^Ht(lll, Fnirln; Septfllilicr .''., 1SS;>; Ottawil. Minnnii. All>riist (t, l.HJ(4. 

 Vkumont: FViicliain, Alin- Slfimx, .Iiim- I'.'i. lSlt2; Mamliestcr. M. .1. /^u// ,s«>, 



July 1, 189H. 

 .M.\s,sAciirsnT.s: (ircat |{airiMj,'t<iii, I'nlhinl, Aii^'ii^'t I. J.SiM; lladli'V, .IZ/'ccS'/c/c/w, 



July 20, lH«>r). 

 C(i\nk(."I'uit: llridfri^Miit, Entmit, \\\)i\\>^{ X, IKK."). 

 Ni:w Yuuk: Oxford, Co//7/c, .Tiiiie 21, 1SS;5. 

 M.\Hvi..\xi): Lauri'l, Kiioirllon, .[uiu' IS, lHtt7. 



DisTHK T OK Coi.r.MHiA: Zoolo^'ical Park, /'o//((;v/ .V2V». ,Tuly 2«», ISJ)."!. 

 I'i;n\svi.vama: Rawliiisville, in 1882. 

 Oirio: Lorain County, RichiHrr, .luly t», 18t)4. 

 Imiiaxa: Near Indianapolis, (orilli, AunuaX, 1892. 

 Iiiixois: Near Chicano, />V(/*ror^-,- Na|»ervill»', r';/(/«/rA, .Tunc 28. 1898. 



