'JIH roNTUlUl'TloNS KKoM THK NATIONAL IIKUIJAUII M. 



61. HERACLEUM L. Sp. IM. 1: •_'»!•. I7:.:5. 



Calyx (cclli siiiiill »>r(»l»M)l('|f. Kiiiil lii«Mully<ilKtviit<', xcry imicli tint 

 tciird (lorMilly. soiiK'wImt imiIm'scciiI. Ciii'iicl w illidorsiil iind intrniit'di 

 tit<> I'ilis lilil'onii: (lie liioiid liitcnil \vin<;s conti^itioiiN lo those nf (Iit> 

 odicr riiiiM'I. stroiiii'lv iirrvcd toward the outer imiiein: >ti'eii<'tlieirni«!' 



cells contimioiis ulioiit seed 

 ('iivity and iiiidei'tlie nerves. 

 Slyl(»|)(idiitin tliick conical. 

 ( )il tulies s(dilary in the in- 

 tei'xals. conspicuous. al»out 

 liair as lone- as the cai'))el. 

 L' to I on the coiinnissural 

 side. Seed \ ei-y nnich llat- 

 teru'd dorsally. 



'lall stout perennials, 



with laree ternately coni- 



])<mn(l l(»a\'es, deciduous 



\^\y,Mij/ci involucres, invohiccis of 



Fi.i.di.-n.rM.i.iui. iMMaiiim: -f, /,. I, nuuierous hractlets. lare-e 



many-rayed unihelof while 

 llowcrs, aiul ol»cordalc petals (the outer ones often <lilated and -J-cleft). 

 I*'irst species cited, l/t nifl, iiiii sp/inii</i/l 1 uni L. 



A ycruis of altout t'.o sp(>cies. Iielonyino' to the northern hemisphere, 

 represented in North America \)\ a sinul(> species. 



1. Heracleum lanatum Michx. V\. Hoi-. Am. 1: KWl. isii;;, Fui. ill. 

 Very stout. I'J to -lA dm. hi^h. puhesccnt or woolly ahove; ju'tiolcs 

 much dilated: leallets petiolulate. n ind-cordate, 1(» to !'.'» cm. hroad. 

 irregularly cut-toothed; rays ,') to I,') cm. lonj^-; fruit s to I'J nmi. Ion;;-, 

 somewhat i)ul)esc(>Mt. 



'lype locality. '" ( anada." 



^^'et jii'ound. from Canada to North Carolina and Tennessee, and 

 extendiuiL;- westward to New Mexico. California, and .Vlaska. 

 S/t>fiiiii i)s i.iiniiiiiiil: \\'{' cite lint few nf tlic iimntTdiis sheets examined nt' tlii.« alum 

 daiit ami u iile.-'prcad sitecics. 

 N'ich.mo.nt: I'cacliam, Alii-r Slirnix. .\iij,'iist ."), isilii. 

 MAssAcnt'sKTTs: Ipswicli, Onkix. 

 ('(i.vxkcticit: I''airlield, F.iiihik, .Iiiiie 14, ls!t|. 

 Nkw Yohk: Itliaca, I'liir. Tk//. , .Fmie, IS7">. 

 I'lONNsvi.v ania: i.aiiea.<ter, Suiull, .Fiiiie 4, ISSil. 

 .Vdiii'n ('Aiini.iNA: Ivoaii Mnimtain, altitude l,.Ht)0 metei-s, .I/c/v/'M/*, Se] item her I. 



ISifJ. 

 Tknni;,sski:: ('<ieke Coiiuty, k'lurii' 1/ 707, .\ii}.'iisl I'S, |S!t7. 

 Ohio: liall(•a^^te^, Hiijilinf. 

 Iowa: (irimu'U, Jdius, .lune l!», 1S77. 



SocTH Dakota: IJiack Hill.-', Hi/iUn'r;/, altitude l.'JOO meters, .luue 2S, 1S92. 

 Nkhhaska: Ne\v<'astle, ('liiiiruh, in ISit.'l. 

 ('oi.oHAi)o: Maneos, llnkrr, llmlr, A- 'rnir,/ :^S{), .Inly !l, ISilS. 





