C. NAUSEOSUS. 

 Table 23. — Variation in certain svbspeeies of Chrysothamnus 



233 



Invo- 

 lucre- 

 length. 



Length, 



including 



lobes. 



Lobe- 

 length. 



Ratio of 



lobe-length 



to total 



length. 



Stig- 

 ma tic 

 portion, 

 length. 



Append- 

 age, 

 length. 



Ratio of 

 appendage- 

 length to 

 total length 

 of branch. 



Subsp. I. consimilis — Cent. 



Shasta Valley, Calif 



Modoc County, Calif 



Near Alturas, Modoc 



County, Calif 



Do 



Eastern Oregon 



Average 



201306 UC 

 195494 UC 



26511 Or 

 193100 UC 

 31187 UC 



Subspecies m. viridulm: 



Esmeralda County, Nev. . 



Lida, Nev 



Mono Lake, Calif 



Near Benton, Mono 



County, Calif 



Benton Station, Mono 



County, Calif 



Benton, Mono County, 



Calif 



Do 



Deep Spring, Inyo Coun- 

 ty, Calif 



Laws, Inyo County, Calif . 

 Bishop, Inyo County, 



Calif 



Near Bishop, Inyo 



County, Calif 



Eearsarge, Inyo County, 



CaUf 



Do 



Near Kearsarge, Inyo 



County, Calif 



Independence, Inyo 



County, Calif 



Lone Pine, Inyo County, 



Calif 



Do 



Panamint Mountains, 



Inyo County, Calif. . 

 Average 



203071 UC 



203072 UC 

 203067 UC 



203074 UC 



203077 UC 



203139 UC 

 203134 UC 



203073 UC 

 203131 UC 



203140 UC 

 203075 UC 



203070 UC 

 UC 



Subspecies o. mohavensit: 



Near Mojave, Calif 



Mojave Desert, Calif. . . 

 Greenhorn Mountains, 



Calif 



Alamo Mountains, Calif. 



Mt. Hamilton, Calif 



Near Fort Tejon, Calif. . 



Mojave Desert, Calif. . . 



Average 



UC 



87255 UC 



63639 UC 



73921 UC 



177561 UC 



Gr 



Gr 



8.0 



7.8 

 8.5 



10.0 

 9.3 

 9.5 

 9.6 



8.5 

 9.0 

 9.0 



10.5 

 9.6 



10.5 

 9.8 

 8.0 



p.ct. 

 17.5 

 17.6 



23.6 

 23.3 

 24.4 



23.5 



25.5 



31.9 

 25.6 



22.8 

 17.9 

 21.9 

 20.4 



21.7 



55.5 



65.5 

 63.5 

 68.0 



57.1 

 66.7 

 55.6 



53.8 



64.8 



60.0 

 67.1 



54.6 

 67.1 



' Except where otherwise mentioned the plants selected for measurement are normal and fairly representative of the sub- 

 species to which they are assigned. The figure given for corolla and style characters is the average of a number of measure- 

 ments, but the fluctuation usually is slight on any given plant. The involucre is more variable. Usually several of the 

 larger and fully mature involucres were selected and these averaged. The measurement is from the base of the lowest row 

 of bracts to a point on a level with the top of the longest bract, assuming the involucre to be in a vertical position. Thus 

 no allowance was made for the slope of the sides. 



• Minor variation 68, C. pulcherrimus Nelson. ' Type of C. orihophyllus Greene, minor variation 63. 



' Minor variation 58, with wide and thick leaves. ' Minor variation 67, C. plaUensis Greene. 



' Minor variation 57, with pubescence covering the ' Type of C. angitstue Greene, minor variation 21. 



involucrea. 



