84 PITTONIA. 



Ascentling forms from lower Sacramento, Calif., Wilkes 



Expedition; Oregon, E. Hall; San Bernardino Yallej', Calif., 



S. B. Parish ; lone, Amador Co., Calif., E. L. Greene ; and 

 others. 



A specimen from central California collected by J. G. Lem- 

 mon is a fine transition form to var, consanguinea^ with no 

 red coloration ; this is followed by a specimen collected by 

 M. E. Jones at Flagstaff, Arizona, Jiaving leaves as markedly 

 red-maculate as those of E. macuJaia. ^ 



t 



Var. CONSANGUINE^ (Engelm.), Boiss. (D. C. Prod. Pars. 

 XV. 2. p. 43). Differs from the species in having a more erect 

 growth ; an obtuse sharply serrate apex to the leaves ; lacer- 

 ate lobes to the involucres ; darker and more ovate seeds less 

 sharp on the angles ; and more or less red coloration in the 



_ 



stems aud leaves. {G. consangiiinea, E. noted (i, E. snhseri'cda, 

 Engelm. (ined.); E. inn'quiJ(dera,Enrjelm. Bot. Mex. Bound. 

 Surr. p. 187). Over the same range as the species "west of 

 the Mississippi. 



Under this must be included the North American speci- 

 mens of E. ^cmgninca, Hochsi. ei Steud., as the points of sup- 

 posed difference so carefully considered by Prof. Greene, 

 Bull. Calif. Acad. vol. ii. p. 57, are found to be far from 

 constant. 



Prostrate forms from northern Lower California, herb. 

 Orcutt, and Owen River valley, iiorb. Columbia ; ascending 

 forms from Redding, Calif., collected by E. L. Greene on his 

 journey of 1889 ; erect forms from Napa Yalley, near the Soda 

 Springs, Calif., E. L. Greene, 1882 ; Lake Pend d'Oreille, 

 Idaho, E. L. Greene, 1889; Klickitat Co., Washington, col- 

 lected by Suksdorf, 1883 ; and with very closely imbricated 

 leaves from the Smoky Hills of Kansas, collected by J. E. 

 Bodin, 1886. . 



Var. Neo-Mexicana. Erect, glabrous, with acutely angled 

 branches. Differs. from the species and var. conscmgninea, 

 chiefly in its elongated shari^ly pointed seeds, having the two 



