70 PITTONIA. 
E. toneuLuM. Habit and aspect of Z. nudum but taller, 
commonly 2% to 4 feet high, the leaves larger and thinner, 2 or 
3 inches long, seldom or never subcordate, but tapering to a 
slender petiole of 3 or 4 inches, green and glabrous above, not 
very densely tomentose even beneath, the outline oblong: 
branches of the tall peduncles not numerous, the involucres 
correspondingly few, narrowly turbinate, 24 lines long : perianths 
greenish-white, the segments elongated-obovate, obtuse, the inner 
longer than the outer and sparsely hirsute externally from about 
the middle to the base, a few such hairs extending to the edges — 
of some of the outer ones: achene prominently and obtusely 
margined at the three angles, and tapering to a beak as long as 
the body. 
Hills and valleys of the inner Coast Range of California, in 
Lake, Colusa and adjoining counties. This and some other 
inland plants were made, by Mr. Watson, a variety oblongifolium — 
of E. nudum, and F. affine Benth. was adduced as a synonym. 
But what I have here in view can not be referred to Æ. afine, 
which, according to Bentham has not only a pubescent perianth, — 
but also thick undulate-margined leaves with rounded rather — 
than tapering base, a panicle with tomentose branches, whereas 
here the whole panicle is glabrous and glaucous, perfectly so at 
all stages of growth. 
E. SULPHUREUM. Tall as Æ. nudum, stouter, less freely 
branching, the corymbose panicle much narrower, the whole 
permanently floccose-tomentose: leaves an inch long or more, 
oblong, rather short-petioled, rounded at base, also somewhat 
tapering to the petiole, densely tomentose beneath, sparsely 80 
above, but permanently: involucres almost cylindric: perianths 
yellow, the inner segments villous-hirsute below the middle, @ 
few like hairs occasional on the base (the united portion) of the 
perianth. 
' Elevated plains of northern California beyond Mt. Shasta; — 
the type being my own n. 923 from near Yreka, 8 July, 1876. 
