ADDITIONS AND CORRECTIONS TO VOL. I. 459 



Page 420. 104. CNTCUS. 



1 2. C. carlinoides, Schrauk. At end read Cirsium scariosum, Nutt. 



Page 421. 106 a . CARBENIA, Adans. BLESSED THISTLE. 



Head many-flowered ; outer row of flowers sterile, the disk perfect. Involucre 

 ovoid-globose, the outer scales broad and foliaceous, spinose-dentate, the inner (2 or 3 

 rows) subcoriaceous, appressed, with a spreading spiny and spinose-dentate apex. 

 Eeceptacle flat, very bristly. Akenes subterete-oblong, about 20-striate, with a cre- 

 nate-dentate crown and large lateral scar. Pappus of about 20 bristles in 2 series, 

 united in a deciduous ring, the outer rigid and awn-like, the inner small, slender 

 and fimbriolate. A low branching pilose annual, with alternate sinuate-pinnatifid 

 leaves, the lobes and teeth spinose. Heads large, terminal, witli yellow flowers. 



A single species, of southern Europe and adjacent Africa, naturalized in western South America 

 and Mexico, and sparingly in the United States. 



1. C. benedicta, Adans. A foot high or more, leafy, somewhat viscid : akenes 

 very thick, 4 lines long, with conspicuous crown ; bristles of outer pappus alternate 

 with its teeth, terete, flattened and flexible at base. Ciiicus benedictus, Linn. ; 

 Eeichenb. Icon. Fl. Germ, xv, t. 748. 

 Near Healdsburg, common, V. Rattan. 



Page 422. 107 a . TBIXIS, P. Browne. 



Heads several -many -flowered; flowers all perfect. Involucre cylindrical, of an 

 inner series of 5 to 10 erect equal scales and an outer more or less irregular series of 

 foliaceous bracts. Eeceptacle small, naked or pilose. Corolla bilabiate, outer lip 

 3-toothed, often longer in the outer flowers, the inner narrow and 2-parted or 2-cleft. 

 Anthers sagittate and caudate at base. Achenia oblong or linear, subterete, 5-costate, 

 usually papillose-scabrous. Pappus of numerous slender roughish bristles in 2 or 3 

 rows. Herbs or shrubs, more or less pubescent or viscid, with alternate leaves, 

 usually corymbosely paniculate inflorescence, and yellow or whitish flowers. 



About 30 species are known, of tropical and subtropical America, from the southern border of 

 the United States and the West Indies to Buenos Ayres and Chili. Two Mexican species are 

 found in the Rio Grande region. 



1. T. suffruticosa. A low much-branched shrub, minutely glandular-puberu- 

 lent : leaves lanceolate, attenuate at base, acute or acuminate, entire or rarely sparingly 

 denticulate, f to 2^ inches long : heads corymbose or solitary at the ends of the 

 branches, on stout peduncles : bracts (about 5) variable, narrowly lanceolate to ovate, 

 3 to 5 lines long ; scales 10, subherbaceous, linear, acute or acutish, 6 lines long, 

 strongly gibbous-thickened at base, shorter than the bright yellow flowers. 



On the White Water River, eastern side of the San Bernardino Mountains (Parry & Lemmon) ; 

 Tantillas Mountains (Palmer) ; Tucson, Arizona (Palmer) ; Camp Grant, Arizona, E. L. Greene. 

 Described by Dr. Palmer as " a showy bushy plant with a strong scent of wormwood." 



Page 423. 108 a . CICHOBIUM, Tourn. CHICORY. 



Heads several-flowered. Involucre of 8 to 10 equal erect inner scales in one row, 

 subcoriaceous, at length concave at base and receiving the outer akenes, and sur- 

 rounded at base by a few shorter unequal scales. Eeceptacle flattish, naked or 

 nearly so. Akenes oblong, turgid, obscurely striate. Pappus of numerous short 

 chaffy scales in 2 or 3 rows. Erect branching biennial or perennial herbs, with 



