
pores 
Compositaceae 391 
long or narrowly campanulate; bracts linear-oblong, appressed, white with somewhat 
spreading green tips, imbricated, the outer shorter; receptacle honey-combed. Ray- 
flowers about 5, distant, white, sometimes inconspicuous. Disk-flowers pale yellow. 
Akenes narrow, silky-pubescent or villous. Pappus of | whorl of capillary bristles. 
(Gk. serikos=silky, karpos—fruit; referring to the hairy akenes.) W. (S. oregonen- 
sis.) S. rigidus Lindl. 
BACCHARIS WINE-BUSH 
Ours a shrub, glabrous, glutinous, |—12 dm. high, much branched. Leaves alter- 
nate; in ours sessile, obovate to wedge-shaped, obtuse, entire to coarsely toothed, about 
25 mm. long. Heads rayless, staminate and pistillate ones on different plants, many- 
flowered, white or yellowish, inconspicuous, 4—6 mm. long (ours); involucre-bracts 
scarious to tip, the outer shorter. Staminate corolla tubular, 5-lobed, with an imperfect 
ovary. Pistillate corolla filiform, small. Pappus-bristles capillary. (The name of 
some shrub dedicated to the god Bacchus.) 
B. pilularis DC. 
INULEAE (ELECAMPANE TRIBE)—Herbs. Leaves in ours entire (except 
Inula). Heads not radiate (except /nula). Involucre usually dry and scarious. Pis- 
tillate flowers mostly filiform and truncate. Anthers tailed at base (except Dimeresia 
and Adenocaulon). Style-branches naked, obtuse to truncate, unappendaged. Pappus 
none or of capillary bristles. 
A. Heads less than 2 cm. wide, rayless; basal leaves smaller than in AA; leaves 
often white-woolly. 
B. Leaves linear to oblong or obovate, not cordate at base, often woolly on both 
sides. 
C. Leaves alternate. 
D. Pappus none, except a few bristles on sterile flowers. 
E. Style and corolla lateral; plant simple or sparingly branched above, 
loose-woolly. Micxopus (p. 392) 
EE. Style and corolla terminal; plant branching from the base, appressed 
woolly. STYLOCLINE (p. 392) 
DD. Pappus of capillary bristles. 
F.  Involucre-bracts many and white thruout, conspicuous and almost hiding 
the small group of yellow flowers within. ANAPHALIS (p. 393) 
FF. Involucre-bracts either few or not white thruout, not so conspicuous as 
the group of flowers within. 
G. Heads dioicous or sometimes the 2 kinds on the same plant; pappus- 
bristles of the staminate flowers swollen at tip. ANTENNARIA (p. 393) 
GG. Heads all alike, of both pistillate and perfect flowers; pappus-bristles 
not swollen at tip. GNAPHALIUM (p. 394) 
CC. Most of the leaves opposite. 
H. Pappus none or of capillary bristles; heads many-flowered; involucre-bracts 
several to many. ier 
I. Receptacle depressed-globose, chaffy; akenes inclosed in involucre-bracts. 
PsILOCARPHUS (p. 392) 
II. Receptacle columnar, villous; akenes hardly inclosed in involucre-bracts. 
EVAX.(pa 392) 
HH. Pappus of stout plumose bristles; heads 2-flowered; involucre-bracts 2. 
DIMERESIA (p. 395) 
