44 Contributions to Western Botany. 
is so condensed that the dead petioles are closely imbricated; 
bracts large, oval, scarious, white, rounded; fruit with 5, hollow, 
wide, thin wings which are wide at tip and soft and papery, 
making the fruit without a leathery body; seed like that of A. 
villosa but very flat and oblong-lanceolate. This grows in the 
Juniper Zone of the Great Basin and northern Arizona. Not 
common. 
2. A. fragrans Nutt. Kew Jour. Bot. 5 261. A. elliptica 
E. Nels. Torr. Bull. 26 7. Nearly prostrate with rather sparse 
Jeaves which are from oval to oblong-ovate, the blade being 1-2’ 
long and as long as the lower petioles but much longer than the 
upper ones; bracts like those of A. nana, few, normally large, 
white, rounded, papery, and often 1’ long; flowers white or only 
tinged; fruit without thickened disks at the top of the wings 
(rarely a wing or two hasaslight thickening at top). This 
grows in the Juniper Zone from Nevada and Oregon eastward to — 
Iowa and southward to Texas, Arizona and Mexico. Common. 
3. A. latifolia Esch. Mem. Ac. Pet. 10 281, A. arenaria — 
Menzies. This maritime species of the northern Pacific coast is 
prostrate and very viscid, with five small bracts and yellow 
flowers. | . 
A2B. Annuals; stems slender and widely spreading. 
4. A. turbinata Torr. King’s Rep. 5 285. Leaves from 
nearly reniform to ovate, acute, base mostly triangular; flowers : 
greenish-white to rose-colored; fruit not very rigid, mostly with 
disks on the upper end of the wings. A. Suksdorfii C. & F. Bot. — 
Gaz. 17 348 is the same but without the disks. This grows in 
the Juniper Zone of western Nevada and eastern California to 
Oregon. Common. 
5. Var. Carletoni (UC. & F. Bot. Gaz. 17 349.) A. angusti- 
folia Greene Pitt. 3 344. Leaves from oblong-ovate to oblong- 
lipear, mostly acute; bracts subulate-lanceolate; wings of the 
turbinate fruit variously pubescent and with or without disks; 
flowers mostly greenish-white. This intergrades with the type | 

