114 



'). E. Californicus. Thix-c or loiii- feet higli: leaf-divisions 

 piiiiKitel} compouiul; se<;iiients line:ir, half to an inch long, 1 to 

 1 f-2 lines broad, terminal one clonjj^atetl ('2 to -") inches long); 

 uppermost leaves simple: umbel U to I'i-rayed, with prominent in- 

 volucre, and involucels of numerous scarious lanceolate long- 

 acintiinatc bractlets 8 lines long; rays 2 irches long; pedicels 8 to 

 10 lines long: fiuit lineur-oMong, i lines long, 1]4 lines broad: oil- 

 tuV>es large, solitary in the intervals, 4 on the commissural side: 

 sulcus of seed-face deeper than in other species, and with more 

 proment central ridge. (Fig. ItiB. ) (Sluvropkyllum (?) Caf.ifor- 

 iiicum Torr. I*;;cif. R. Re}>. i\ . 98. Poif^sciadmm CaHfoniiciini 

 Gray, Proc. Am. Acad. vii. 34(). 



California, Knight's Ferry, .Stanihiaus coiirily [IJiuihiw. in iHJo), Santa 

 Lucia Mtb. ((V. y^ VuHtu 227, in 1><80, dibtributed as Canim Krilotfffii). 

 Fl. May. 



Until Vascy's collection in 1880, tliis specic6> was known only iiora the 

 single collection of Bigelow, iu 1853. In the character of single oil-tuV^os in 

 the intervals it differs from the other species, but so closely resembles 

 them in every other detail that it cannot well be separated from them. 



38. AXTHRISCUS Hoffm. Umb. i. 88. -Resembling 

 CJuvrophyUum in vegetative characters. 



A. Ckkki-oi-hm Hoffm. 1. c. 41. Mature fruit smooth and 

 shining. (Fig. 127.) — Chi.cropJiylhim sativum L. 

 Naturalized iu E. Pennsylvania ( Thon. C. Porter). 



A. s^i.xicsriiis Hoffm., from Europe, has been collected on 

 ballast ground by 1. C. Martindale near Philadelphia, and bv Ad- 

 dison Brown near N. V. City. 



A. \ri,(;.\ins Pres:., from 1-Lurope, is s;ad by Prof. Macoun to 

 be introduced at Bedford, X. vS. 



3U. BUPLEIRI'M Linn. Gen. n. 82N. ^Annuals or peren- 

 nials, with simple entire clasping or perfoliate stem-leaves, with or 

 without an involucre, involucels of o or more ovate bractlets, and 

 yellow flowers. 



The genus iluiilearam contains about !Mi desirribed species, which 

 Benthara Jc Hooker think should be reduced to about 60. Although it is 

 called by these authors "(jcua>i naturalissimuin," it contains the most 

 diverse characters. esj)ecially in fruit structure, characters which are 

 usually considered generic. Our generic description applies to the only 

 two species found in our flora, one introduced, and the other indigenous. 



