1924] Fernald,—Dwarf Antennarias 97 
t. Involucre of 2-3 (—4) series of subequal or obscurely 
imbricated whitish, creamy or roseate bracts 7. 
j. Indument of the rosette-leaves close and lustrous 
as if varnished: cauline leaves 9-18: inflores- 
cence glomerulate: corollas 3-3.5 mm. long k. 
k. Upper cauline leaves with scarious tips 2-2.5 
mm, long: involucre not viscid, with thin 
bracts; the thin tips of the inner series lacer- 
BUC-CIOSE u. te cee ne en tee . A. albicans. 
k. All but the uppermost cauline leaf merely short- 
mucronate: involucre viscid-hirsute, with 
thick and firm bracts; the thick tips entire 
or merely cerenulate........................ 8. A. nitida. 
j. Indument of the rosette-leaves a loose tomentum: 
cauline leaves 5-10: inflorescence a corymb: 
corollas 3.8-5 mm. long l. 
l. Flowering stems 3-7 cm. high, not glandular: 
the upper cauline leaves with oblong-lanceo- 
late scarious appendages 2-3 mm. long: heads 
2-5: involucre not glandular: achenes smooth. .9. A. Peasei. 
l. Flowering stems 0.5-1.5 dm. high, glandular- 
hirsute above: upper cauline leaves with 
subulate or involute tips: heads 3-9: involu- 
cre glandular-viscid: achenes papillose. .10. A. subviscosa. 
h. The 5-8 upper cauline leaves with broad flat scarious 
appendages: rosette-leaves mucronate: involucre 
(except for the whitish tips) fuscous, 6-8 mm. high, 
its bracts loosely spreading..................... 11. A. tsolepis. 
b. Larger basal leaves mostly wider (rarely less than 5 mm. 
wide), distinctly mucronate or apiculate m. 
m. Rosette-leaves comparatively small, 0.2-2.1 em. wide, 
with only the midrib prominent to the tip beneath, 
the lateral ribs short and evanescent n. 
n. Middle and upper cauline leaves terminated by a flat 
-1 
or merely involute scarious appendage....A. neglecta Greene, A. 
appendiculata Fernald, A. spathulata Fernald, A. canadensis 
Greene. 
n. Middle and upper cauline leaves subulate-tipped 
or mucronate, without a scarious appendage (except 
sometimes on the bracteal leaves of the inflorescence).. .. . A. peta- 
loidea Fernald, A. glabrifolia Fernald, A. neodioica Greene. 
m. Rosette-leaves comparatively large, 0.7-5.5 em. broad, 
with 3-7 somewhat prominent ribs beneath ..A. plantaginifolia (L.) 
Richardson, A. occidentalis Greene, A. fallax Greene, A. Brainerdii 
Fernald, A. Parlinii Fernald, A. solitaria Rydberg. 
1. A. ALPINA (L.) Gaertn. Fic.1. Humifuse, with trailing sublig- 
neous branches up to 1 dm. long: stolons short and crowded: rosette- 
leaves oblanceolate, 0.8—1.8 cm. long, 1.5-4 mm. wide, narrowed to a 
distinct subulate-mucronate tip, bright green or canescent above: 
flowering stem slender, subflexuous, up to 2.3 dm. high: cauline 
leaves 4-13, becoming distant by elongation of the stem; the middle 
and upper with oblong glabrous scarious tips: pistillate heads 1—5, ses- 
sile or short-stalked: involucre 7-9 mm. high, lanate at base: bracts 
about 3-seriate, subequal; the outer lanceolate to oblong, fuscous, 
acuminate; the inner attenuate: corollas 4-5 mm. long: longer pappus- 
bristles 5-6 mm. long: achenes glabrous, 1.3-1.5 mm. long: pits of 
