110 _ PROCEEDINGS OF THE AMERICAN ACADEMY 
short : involucre commonly campanulate rather than turbinate, 2 lines 
long; bracts about 8, oblanceolate, pubescent, purplish, scarious-mar- — 
gined: rays none: disk flowers white, 10-12: achenes sharply + 
angled, very pubescent: pappus scales 8, suborbicular, narrowed and 
thickened toward the base.— Rio Hondo, State of Mexico, Sep- 
tember, 1891 (n. 5006), and from the same locality, September, 
1892 (n. 4289). Well characterized by its short-pedicelled, some- 
what aggregated heads, and subcampanulate involucres. 
SENECIO ALIENUS. Nearly smooth below, minutely glandular 
above: stem herbaceous, purplish, somewhat striate, with flexuous 
character suggestive of a climbing habit: leaves long-petioled, shal- 
lowly 3-lobed, broadly triangular in outline, or by the development of 
two obtuse angles near the base irregularly pentagonal, finely cuspr 
date-dentate, nearly smooth, light colored sometimes purplish beneath, 
23—4 inches in diameter, peltately attached near the subcordate base; 
lobes acute : inflorescence lax, irregularly racemose-paniculate : bracts 
filiform: the heads developing successively the highest first, 12-10- 
flowered: buds ovate: involucral bracts purplish, hispidulous and : 
glandular, about 8 in number, linear lanceolate with incurved acute Q 
tips: corolla of Eusenecio: anthers sagittate : achenes glabrous, 10- 
ribbed.— Mountains near Patzcuaro, Michoacan, December, 189! 
(n. 5056). In its peculiar inflorescence and successive developmentof é 
the heads, as well as in its sagittate anthers, this species approaches : 
the East Indian section Synotis. ) 
SENECIO Jatiscana, Wats. (Proc. Am. Acad., X XVI. 143). Mr. 
Pringle’s later specimens of this species add the following charactel — 
Height 8-10 feet: lower leaves rather deeply cordate, shallowly — 
lobed, 8 inches long, nearly as broad. — Cool wooded cafions, mou! : 
tains near Lake Chapala, State of Mexico, November, 1892 (n. 4329). 
Cacata PLAtyLeprs. Root a cluster of strong fibres: stem het 
baceous, woolly at the base, otherwise smooth, sulcate-striate : radical 
leaves long-petioled, ovate, cordate; limb coriaceous, smooth, strongly : 
reticulated, pinnately divided, 10-12 inches long, two thirds as broad; 
segments irregularly 2~3-parted, the margins callous-denticulate: the 
cauline leaves much reduced, the upper consisting almost entirely a 
broad ovate sheathing petioles, toothed near the apex: heads cory™ 4 
bose, very large, 40-50-flowered, subtended by several laciniately Ms 
toothed bracts: involucre broadly campanulate; the scales strongly 
imbricated in two series, ovate, thickened in the middle, acutish, ee . 
margins ciliolate, the tip bearing a tuft of hairs: corolla very slen- 
_ der, 6-7 lines long, the tube somewhat exceeding the limb: achenes — 
e > Ree: 4 peels ie pare tie ae 
Peete R ae ECR CE SS OF rg eh ee nO TR REO Be UR. A) Sedalia Dah ee ene ge ee eee 
almanacs taal niin ae a 
