172 PROCEEDINGS OF THE AMERICAN ACADEMY 



(n. 1264). Mr. Lemmon's specimens were supposed by Dr. Gray 

 to belong to E. 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 E. 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 green, 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 inflo- 

 rescence angulate, bearing the heads in rather dense terminal cor- 

 ymbose groups : heads 2|— 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 or 

 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). 



Bellis purpukascens. Perennial: root of numerous fibres: 

 stem procumbent, much branched, angulate, striate, covered with 

 spreading white pubescence: branches simple or again divided, 

 terminating in long slender simple peduncles : leaves elliptic lan- 

 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 7-8 

 lines in diameter: involucre spreading, the bracts in two series, 

 lanceolate, acuminate, herbaceous in the middle, with margins some- 

 what scarious (not so distinctly so as in B. integrifolia) : rays pur- 

 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 xantho- 

 comoides, Less.), the material of that species in the Gray Herba- 

 rium being insufficient to prove the distinctness of Mr. Pringle's 

 plant. I am indebted to Prof. N. L. Britton for definite infor- 

 mation on the subject, and for the kind loan of Schiede's no. 206 

 from the Herbarium of Columbia College, which shows B. xantho- 

 comoides to be certainly distinct, differing in its much less robust 

 and branching habit, its solitary heads, long slender runners, more 



