472 
47. COMPOSITACE^:. 
DC. 1. c. well observes of tliis pi. u variat erecta aut diffusa, 
glabra aut pubera, subsimplex aut valde ramosa, capitulis mi- 
noribus aut majoribus Ac.” It is an altogether useless but 
not troublesome weed in Mad. 
The mostly neutral fl. of the ray and occasional absence of 
chaffs towards the base of the recept. are too variable or in- 
constant characters to warrant the retention of Maruta Cass, as 
distinct from Anthemis L. 
A. arvensis L., RFG. xvi. t. 113. ff. i. ii., is mentioned by 
Schultz in WB. ii. 285 as having been also gathered by AYebb 
in Mad. ; but it has entirely escaped my constant search and 
the notice of all other botanists. It is distinguished mainly by 
its always fertile ray, its broader lanceolate or elliptic chaffs, 
and ach. not tuberculated but crowned with a sharp or tumid 
plicate rim or border. It is also a coarser stronger-growing 
more or less silky-downy greyish pi. with the segm. of 1. shorter 
and broader, and the fl. larger. 
The common European weed Matricaria Chamomilla L., 
RFG. xvi. t. 100. f. i., much resembling Anth. Cotula L. in 
habit, fl. and foliage, but at once distinguishable by its naked 
chaffless recept. and always styliferous fertile ray, lias not oc- 
curred either in Mad. or the Canaries. 
ff 19. Achillea L. 
§1. Millefolium Tourn. Inv. ovoidal; ligules of ray shorter 
than inv. 
ffl. A. Millefolium L. Yarrow. Feiteirinha. 
Root-stock shortly creeping stoloniferous ; 1. finely multifid 
2-3-pinnatisect narrow-ligulate or linear-oblong in outline, 
rachis narrow scarcely or not winged entire, pinnae 20-25 on 
each side, approximate crowded squarroselv erecto-intricate 
above the plane of rachis, nearly equal from the base to tip of 
1., the lower pinnse in the middle stem-1, loosely and decus- 
sately stem-clasping but not elongated or longer than the rest, 
segm. all linear falcate finely cuspidate intercrossingly erect or 
incurved and ascending ; heads rather large and numerous in a 
close crowded terminal cyme; ff. w. or roseate 4- or 5-ray ed, 
the rays half the length of inv. ; ach. truncate at top. — Linn. 
Sp. 1207 : Lam. Diet. i. 29; Brot. i. 897 ; Pers. ii. 469: EB. 
t. 758; 8m. E. Fl. iii. 462; DC. vi. 24; Koch 410; Coss. et 
Oram. ii. 897 ; Gren. et Godr. ii. 162; Bab. 176; RFG, xvi. 
