32 



CONTKIHUTIONS KUoM THK NATIONAL IIKKHAKH'M. 



Klii. I.— Siiiiicnlii Irifiiliiilii: n. I; h, Iti 



4. SANICULA I.. Sp. IM. l:L>;5r.. 1758. 



Ciilyx tcctli soincwliat roliaccoiis, j>cisis(cii(. Fruit suhiflolioso, 

 (Iciisclv rovcrcd with hooked hristlcs ()!• tulMTcillillf. ('ill-pel with 

 neithei- fihs nor sti-(Mi<;tii<Miiiiy; eeils. St yiopodiuiii wuiitiiii:-. Oil 



tiihcs mostly iai'j^^e, ;"» 

 (;{ dorsal and 'J (-(mh- 

 inissural). (»r :'. to 

 many iri'enidarly dis- 

 tributed. Seed faco 

 from plane to deepl\ 

 concavo or sulcato. 



Smooth iMMTMiuals, 

 with almost naked or 

 t'ew-loaxcd stems, 

 mostly palmat(> (pin- 

 nate in a lew speci(>s) leaves with more or less pinnatilid or incised 

 lobes, involucre and involucels present, and <>'i'eenish-yellow or purple 

 Howcrs in irrej,''ulai'ly compound t'ew-rayed umbels. 

 First species cited. S. ( ^irn^Hint, L. 



A ol-ouj) of about H(» species belon<:'in<;' to l)otli hemis])heres. IS of 

 M'hich occur in the I'nited States and Canada. 



Atlantic spcfics; oil tiilics.") (cxcci)! in iS'. ii'iyilUtlit). 



Styles imirli lidi^'t'i' than the hrintli's; steiik' llnwci's nllcii in sr|>ai'at(' unilx'llcts. 



Fruit not stipitatc; bristles hiilhoii.s at liasc 1. S. iiinrllinuiicn. 



I'^niit stipitatc; liristlcs not hiilboiis at base 1'. .s'. t/rf(/arlii. 



Styles shorter than the l)ri.<tles; .sterile llowers intermixed with the fertile, not in 

 separate mnbellets. 

 Oil till ten 5. 



I'Vuit stipitati' ',i. S. cdnadcmiK. 



Frnit not stipitate 4. S. hiikiIIH. 



( »il tubes lunnerons "). S. Irifvliata. 



l*a<Mlic species; oil tubes irre;riilar in nuiaber and distribution. 

 Mature fruit pedii'eleil or stipitate. 

 Involucels small. 

 Fruit bristly all over; leaves not with conspicnonsly wii^_'ed rachis. 



ti. 'S. Ilii'lizit'KtI. 



Fruit naked (at least less bristly) below; lea\es with conspicuously winged 



rachis 7. aS'. (trtjithi. 



Involucels consi)ieuous <S. ,S'. (irctopuidi'x. 



stature fruit neither pediceled nor stipitati'. 

 I^'uvt's ]»almate in type. 

 Ij<^aves i)almately divided. 



Leaves with main divisions conlhu'nt at base. 



liivoluceLs conspicuoUH it. S. Iiourllil. 



Involucels small 10. >S. lacitiiold. 



Leaves with main divisions distinct at base. 

 The numerous p(>duncles arising in a cluster from near the base. 



11. S. nevndemh. 

 rcduncles arising singly along the stem 1 2. aS'. septentrionalis. 



