56 ROBINSON 
clear photograph of the type-specimen (Par.) and it corresponds in 
all observable details with modern material from Bolivia, Peru, Col- 
ombia, and elsewhere in which the heads according to several counts 
are consistently 31-39-flowered. Baker, Kuntze, and Hieronymus 
all extend this species to include a great variety of material, even such 
forms as would from their dense pubescence, more leafy stems, 
fewer-flowered heads, and linear-attenuate involucral scales fall 
within the next species. 
32. E. pyramidale Klatt. Shrubby; stems erect or ascending, 
branched, densely leafy, terete, sordid-tomentose; their hairs at 
first white, spreading, attenuate, perceptibly (under a lens) jointed, 
at length falling away except about the nodes or remaining only as 
slight papillae; leaves crowded and much imbricated, opposite, 
sessile, narrowly lance-oblong, mucronately subacuminate from an 
obtusish apex, cuneate at the base, entire or obsoletely crenate-den- 
tate, scabrous and densely papillose-tomentose above, hirsute es- 
pecially on the midnerve and pinnate veins beneath, 4-6 cm. long, 
7-10 mm. wide, the margins strongly revolute; panicle fastigiate, 
many-headed, glandular-puberulent; heads 21-25-flowered; invol- 
ucre turbinate-campanulate, the scales about 3-seriate, graduated, 
linear, attenuate, mostly 3-nerved and 2- or 4-ribbed, dorsally pubes- 
cent; corollas 5 mm. long, dull reddish or purplish, slenderly tubular, 
slightly and very gradually enlarged upward; style filiform, little 
exserted; achenes roughened on the angles; pappus-bristles about 
25, delicate, white—Abh. Naturf. Gesellsch. Halle, xv. 323 (1881), 
& reprint of same, p. 1 (1881). ? E. amygdalinum, var. revolutum 
(Pohl) Bak. in Mart. Fl. Bras. vi. pt. 2, 314 (1876), as revoluta. 
? E. revolutum Pohl ex Bak. |. c. 
Santa Cruz: Prov. Chiquitos, d’Orbigny, no. 680 (Gr.). 
[Brazil?] 
Two forms may be recognized as follows: 
Forma «. typicum. Leaves lance-oblong, 4-6 cm. long, 7-10 mm. 
wide; heads about 21-flowered.—Synon., range, and exsice. as above 
stated. 
Forma £. angustifolium (Hieron.), comb. nov. Leaves linear or at 
most narrowly lance-linear, 2-6 cm. long, 2-5 mm. wide; heads about 
21-flowered.—E. amygdalinum, var. revolutum, f. angustifolium 
Hieron. ex Ktze. Rev. Gen. iii. 146 (1898), without char. 
Santa Cruz: Prov. East Velasco, alt. 200 m., Kuntze (N. Y., phot. Gr.). 
Klatt described the heads in this species as 18-flowered, but the 
writer examining the type-material now in the Gray Herbarium 
