hendii (Tab. 6430), which proves to be A. Bigelovii, A. Gray 
in Pacif. R. R. Exped. vol. iv. p. 97, tab. 10. 
This appears to be a common species throughout the 
northern and central parts of Mexico; and it occurs in. 
almost all collections made in that region. It is here for 
the first time brought into cultivation, from seeds collected 
in 1878 by Drs. Parry and Palmer in the vicinity of San 
Luis Potosi. It is a fine acquisition to the gardens; and 
its rosy-purple rays distinguish it from all its near relatives. 
Descr. A low species, branching directly from the bi- 
ennial or annual root, attaining only a foot or two in height, 
clothed with a minute roughish pubescence, and with more 
bristly hairs on the stem, becoming viscid or glandular 
near the heads and especially on the involucre, and imparting 
a balsamic or terebinthine scent. Leaves beset with either 
distinct or obscure teeth, which are tipped with a prominent 
bristle; the veins obsolete; cauline about an inch long and 
somewhat amplexicaul; radical inclining to spathulate, four 
or five inches long. Heads terminating the few or more 
numerous branches, somewhat naked-pedunculate. Jnvo- 
lucre half an inch broad and high; its bracts attenuate, 
recurving, in several ranks, giving a squarrose appearance 3 
the short pubescence decidedly glandular. Leceptacle flat, 
very strongly fimbrillate. ays about fifty, crowded, rather 
broadly linear, half an inch long, rose-purple or with a 
tinge of lilac. Disk-flowers yellow and unchanging. Style- 
arms with oblong appendages. Achenes remarkably short, 
turbinate, hardly compressed, very villous. Pappus of 
rather scanty and unusually rigid bristles, all shorter than 
the corolla tubes, the outer series of bristles only half the 
length of the inner; ray-pappus decidedly shorter than 
that of the ak toe 7 bey 4 
Fig. 1, section through invol 
ditto; 4, disk-flower; 5, style- ucre and receptacle; 2, ray-flower ; 3, style-arms of 
arms of ditto :—all enlarged. 
