CorLTKK AND KOSK NOltTlI AMKKICAX I'MHKLLIFKUAK. 7ii 



wliin 



onuiiii. 



tHllfiiHinii. 

 ,1, piitciix. 



. 1840. 

 rlicy :U7. 



[■iiiicluHl: 

 til liiu'iir 

 ilc; rays 

 ig-, fruit 



i//: typo 



liii*^' into 



iko, Tnrrni 

 11 lit y, Mix. 



I'riiii/lr, 

 ( liisiiiil, 

 s(\ April, 

 iir, April 

 , ullitii'lf 

 he 7V(^^■/.■, 

 ay, lSi>7; 



;vnniiyiiiy. 

 (( luukc UH 



1S8S. 



Fig. 10. 



■in. long, 

 innbols 

 •uit with 



U. 



18(»8. 



Mlssollti: .lilcU.-nn Ccillllty, lUi^ih 2iM>, .luiH' .">, ISltli; hlimlc l»nck, llnxh !•, .Illlic 



IS, 1S!I7; Clay Cniuity, Miukmzh, .liinc 'JO, IS!»7; Atlicrtun, lUixl, IL'I, .Iiiae 

 1.'7, IHWS. 

 AuKANHAs: Dt'catur, I'lauh. 



Indian Tkuuitouv: Sapiilpa and SciiiKiynli, llnxli ISt), 1S7, .Iiiiic, isitl. 

 Oklahoma: IIiiiitHvilli', l\iii;:Hslicr ("miiity. Lniirn /.7(n//,///.sA//(, May .Iiiiir, ISiMi, 

 Ti;.\As; On tlic San I'cdro ami the rccus. Wrli/hl lldti, in js.'il; near Austin, //-/// 

 iTiO. May 10, 1.S7L'. 

 lii/ildciiiilixiiiiriiilx'SnW. in DC. ('(ill. Mem. 5; .'!li, Isi'!,-, is 'crlainly ciinL't'iicric with 

 thin HiK'fic.s un<l lias t'\cn iiccii cniisidfn'il liy .^onif tn he dnly a simxplli I'riiitcii fnrin 

 111' it. An cxaniinatii'ii nf Nuttali's H|>cciinfiis at tlic I'liiladclpliia Aradciny of 

 Sciciu'cH would sci'iii to indicati' a dil't'crcnl species. .\ smooth fruited I'orni wasal.so 

 cnllecleci hy Kexcrelion in Ti'xas many yi'ar.s a^'o. Collectors in the Soiitiiwest 

 sliuuM look for this |)laiit. 



11. ERIGENIA Nutt. (icii. 1; 1ST. IslS. 



(aly.x (cctli oh.solctc. Ffiiit .stfonolv lluttcncd liitcially. nearly 

 (irl»i('iilar. iiotcluMl al ha.sc and apex, o-lalii'oiis. thin heluccn tia^ 

 inciii'vcd cai'pcls. Carpels stroiioly llaltciicd hitcrally. with ('((uai lili- 

 I'orm ribs, very thin pericarp, and streno'thfnino- cells beneath the ril)s. 

 Oil tubes 1 to;', in the intervals. t> to 11 

 on the coininis.sui'al side (from which ex- 

 tends a ])roniiiient corky iieckdike i)ro- 

 jection. ineetiiio- its fellow from the 

 other carpel and foi'inino- the thin area 

 Itetween the cnr\t'd car])el.s). Swd 

 face narrowly and (lee|)ly sulcate. 



liou. olabrons. nearly acaiile.-^ceiil 

 plant, from a deep-seated tuber, with 

 leiiiately decompound leaN'cs and oblong .segments, no in\ ohicre (unless 

 :i reduced leaf). iii\ olucel.s of leafy linear or spatiilate bractlets, and 

 while llowers in small compact umbels. 



.V iiioii()ty])ic oeniis (based on Si.si>/i hnlhosiini Miclix.) of the I'nited 

 States and Canada east of the (Ji'eat Plains. 



When .Niittai! eslalilished this i;emis he staled that it was probably composed of 

 lun sjiecies, but only one was described or named. I lis idea of a second species was 

 uiveii in a drawinj: liy C. \\ . Short. We have carefully examined much material of 

 this ireiiiis with the idea that it mi^'lit be .«e<;retfated, but have not iK'eiialile to see 

 :niy ilividinj; line. The early and late forms are (|nite different, but tiiere seeiiiH to 

 111' Mo warrant for Niittall's stafenieiit. Most of the material we have examined has 

 belli from the Northern States, but this has been carefully compared w itli specimeii.s 

 I'llleiteil at Kiioxville, Teiiii. (the type locality of A'. Iiiillnixn). 



I. Erigenia bulbosa u>iiclix.) Nutt. (len. 1: ISS. 1SL8. Fui. 11. 



SIsnii hiilhusinn Michx. Kl. I'x.r. Aim-r. 1 : ](>!». 180:5. 



liow. L' dm. or loss high; leaves basal except those subtending the 

 imperfect umbels; pedicels wry short; fruit '2 imn. long, 8 nun. liroad. 

 Type locality. " ])i-()pe Knoxville," Tenn. 



Ii.bisT.: Kngler c^ PrantI, Nat. Ptlan/enfamilien .3': [i>:>. 1S1»S. 

 l^mge as given under the ooiius. 



Fio. 11. — EriKi'iiiii liiillinsii: 

 '(, ;,N; ''. • III. 



