172 PROCEEDINGS OF THE AMERICAN ACADEMY 
(n. 1264). Mr. Lemmon’s specimens were supposed by Dr. Gray 
to belong to H. Rothrockii, with which they had been associated, 
and it is to them that he referred (Syn. Fl. I. 2. 102) in speaking — 
of depauperate forms of H. Rothrockii with sessile leaves. 
XANTHOCEPHALUM TOMENTELLUM. Perennial, 2-3 feet high: 
/ stem simple, leafy up to the corymbose. inflorescence, striate, to 
mentulose: leaves entire, thickish, pale gréen, glabrate above, 
tomentulose beneath; the radical ones oblanceolate or spatulate, 
rounded at the apex or obtusely pointed, 2-2} inches in length, — 
narrowed at the base to petioles 3-4 inches long; the cauline ob- 
lanceolate; the lower contracted below into broad more or less _ 
clasping petioles; the upper sessile, acute: branches of the infle — 
rescence angulate, bearing the heads in rather dense terminal com — 
ymbose groups: heads 24-3 lines long, about as broad; involucre 
campanulate;* scales regularly imbricated in several rows, abruptly — 
pointed, the scarcely thickened ends appressed or slightly spread 
ing: rays numerous, not exceeding the disk flowers: pappus in 
both ray and disk flowers a crown of short unequal scales more OF — 
less united into a cup; achenes glabrous, 2-edged, with or without — 
one or two intermediate angles.— Alkaline meadows, Hacienda de 
Angostura, San Luis Potosi, July, 1891 (n. 3761). 2 
va BELLIS PURPURASCENS. Perennial: root of numerous fibres: a 
stem procumbent, much branched, angulate, striate, covered with — 
spreading white pubescence: branches simple or again divided, 
terminating in long slender simple peduncles: leaves elliptic lame : 
ceolate or the lower somewhat spatulate, acute or acutish, entire; 
sessile tending to turn purple, 8-18 lines long, 3-5 lines broad, : 
pubescent on both sides and ciliate: heads including the rays 14 
lines in diameter: involucre spreading, the bracts in two series — 
lanceolate, acuminate, hérbaceous in the middle, with margins some — 
what scarious (not so distinctly so as in B. integrifolia): rays PU 
plish white: disk deep yellow.— Shaded grassy slopes, barranca of 
Las Canoas, San Luis Potosi, August, 1891 (n. 3819). ‘This plant 
was distributed as B. xanthocomoides, Gray (Brachycome vantho — 
comoides, Less.), the material of that species in the Gray Herbx 
rium being insufficient to prove the distinctness of Mr. Pringle’ 
plant. I am indebted to Prof. N. L. Britton for definite infor 
_ mation on the subject, and for the kind loan of Schiede’s n0- 206 
from the Herbarium of Columbia College, which shows B. axantho : 
- comoides to be certainly distinct, differing in its much less robus 
_ and branching habit, its solitary heads, long slender runners, ™ | 
oie ste ee anata: Lee Cai cs 7 liee i Ne, Oe en wae A 
