VOL. IV.] ContvibiUions to Western Botany. 263 



pubescent, leaves fascicled at the top of the short branches of the 

 root; heads one-half inch high, almost sessile and surpassed by 

 the leaves, peduncles not lengthening with age; scales narrowly 

 oblong, the outer the narrower, rounded at apex, the hyaline and 

 lacerate margin narrow, midrib green; scales in about five ranks 

 and the outer very short, inner scales one and one-half lines 

 wide and shorter than the pappus; raj^s three lines longer than 

 the disk, purple, three-quarter line wide; pappus alike and akenes 

 glabrous; rays glabrous or nearly so. Another specimen which 

 I refer to this I collected above Silver L,ake in American Fork 

 Canon, Utah, July 30, 1880, at about 10,000 feet altitude, which 

 is the same as the above, except that it is at least four years old 

 and more loosely branched and leaves only an inch long. The 

 inner scales are acute with rather wide lacerate margins, outer 

 scales short, scales in at least three series; heads sessile. The 

 glabrous akenes and habitat would indicate a distinct species. 



Tozi'Jisendia Watsoni^ Gray. If Dr. Gray has not confounded 

 this with the true T. Jloj'ifer then this is not a good species. In 

 order to find out I had two' plants which I knew grew from the 

 same seed sent to Harvard, one of them came back labeled 

 " T. fiorifer'^ and the other " T. Watsonty It is therefore 

 evident that the varying pappus was considered a specific char- 

 acter by Dr. Gray and was used to separate the species, but it is 

 of no value whatever in this group and is hardly of any value in 

 the genus at large. From quite an amount of material from the 

 northwest it seems likely that there may be some good characters 

 left on which to separate the species, the chief one being that the 

 true T. florifer is biennial or more, while our plant of Utah and 

 most of Nevada is a winter annual, almost white with a rough 

 strigose pubescence which is short or long, the scales are in about 

 two ranks; ra3^s very pubescent on the outside with flattened 

 hairs with yellow gland-like tips. Our plants are never fleshy 

 and the leaves are not thick. It is a more graceful plant, and 

 grows in the ^-alleys in very dry places and is an early bloomer, 

 it soon dries up and blows away. It is the plant referred to by 

 me in "Contributions No. 3" as being a diurnal with flowers 

 opening between nine and ten o'clock a. m., and closing between 

 five and six o'clock p. m. It is the only Toicnscndia of our 



