36-t PROCEEDINGS OF THE ACADEMY OF [1892. 



C. Pringlei. Cnicus Pringlei S, Wats., 1. c, xxv, 156. 



State of Nuevo Leon, Mexico. 



C. excelsior. Cnictis excelsior Rob., Proc. Am. Acad, xxvii, 179. 



Slender and perhaps very tall ; lower leaves unknown ; cauline 

 oblong-lanceolate, scarcely either lobed or toothed, but more or less 

 distinctly spinose-serrulate, decurrent along the stem for at least a 

 third their length, white-tomentose beneath, hoary above; heads 

 small, clustered at the ends of slender paniculate branches; bracts 

 of involucre regularly and closely imbricated, ovate, viscid on the 

 back below the slender spreading terminal spine; corolla rose-pur- 

 ple, the segments quite surpassing the anthers and style, but much 

 shorter than the tube ; pappus sordid, altogether plumose. 



C. Potosinus. , 



Near the last, but stouter and perhaps taller ; cauline leaves 

 ampler, deeply pinnatifid, with sharply spinose lobes, not in the 

 least decurrent ; flowers and fruit as in the last. 



This species and the one preceding are in Mr. Pringle's Mexican 

 collection of 1891, from the State of San Luis Potosi, and are dis- 

 tributed in one sheet, under the number 3,768. The printed ticket 

 bears the statement that the plants grow in low lands, and attain a 

 height of from six to ten feet. In C. excelsior the leaves appear as if 

 joined to the stem for a third their length -without any tapering from 

 the point of junction ; a character so remarkable that the two 

 plants can in no wise be treated as one species. 



2. Three New Perennial Lupines. 

 Lupinus floribundus. 



Stems tufted, rather firmly erect (sometimes decumbent at base), 

 a foot high or more, with several ascending branches, each ending 

 in a well developed raceme ; herbage more or less villous or hirsute ; 

 leaves all short-petioled ; leaflets about 7, an inch long or less, 

 oblong-lanceolate, acutish ; racemes very short-ped uncled, dense 

 and cylindrical, 2 to 4 inches long, scarcely f inch in diameter, the 

 flowers very small, light blue ; abruptly fiilcate-incurved keel about 

 equalling the wings and only 2 or 3 lines long, the banner shorter ; 

 ovary densely hirsute. 



A Avell marked and exceeding pretty lupine of the region of the 

 middle and upper Bear Creek, in the mountains of Colorado 

 directly west of Denver, growing in open woods among pines (P. 

 ponderosa) ; collected by the writer in 1873, 1875, and again in 



