RYDBERG: SOME SENECIOID GENERA—I 375 
— to the center, short-pubescent above, tomentose be- 
; divisions 7-8, cuneate in outline, mostly 3-lobed and 
ees toothed, the ultimate lobes Beet sag ovate; heads 
numerous in an elongate panicle; involucre campanulate, about 
ong, 6 mm. broad, glabrous, purplish; bracts 9-10, 
oblong, acute; flowers about 10; corolla-tube 5 mm 
2.5 mm. long, neat Dbon achenes ee pappus-bristles 
6 mm. long, w 
Type i in the vicinity of Cerro San Filipe, Oaxaca, 
1894, E. W. Nelson rr1z (U.S. Nat. Herb. no. go8or8). 
This intermediate between the preceding and the next 
following. The leaves are divided half-way to the center into 
oval sinuately lobed divisions. The inflorescence is elongate- 
paniculate. 
11. Psacalium poculiferum (S. Wats.) Rydb. 
Cacalia poculifera S. Wats., Proc. Am. Acad. 26: 143. 1891. 
The leaf-blades are divided less than half-way to the center 
into broad divisions, again lobed or toothed with triangular 
lobes or teeth; the inflorescence is cymose-paniculate. 
Jauisco: Pringle 9874, 4414. 
TeEpic: Rose 1935. 
12. Psacalium tabulare (Hemsley) Rydb. 
Senecio iabularis Hemsley, Biol. Cent. Am. Bot. 2: 248. 1881. 
Cacalia tabularis A. Gray, Proc. Am. Acad.19: 52. 1883. 
Cacalia macrota Schultz Bip. 
This is related to the preceding, but with broader less lobed 
divisions, more elongate inflorescence and acute purplish bracts. 
The type was collected in the valley of Orizaba, Veracruz. 
VERACRUZ: (Orizaba) F. Mueller (in 1855); Bourgeau 2926 
(type). 
PUEBLA: Purpus 5630. 
13. PSACALIUM LAXIFLORUM Benth. Pl. Hartw. 41. 1840. 
Senecio Moreliae Hemsley, Biol. Cent. Am. Bot. 2: 243. 1881. 
This is characterized by its small blades of the lower leaves 
and the more foliaceous leaves of the inflorescence. The type 
came from Morelia, Michoacan. 
MicuHoacan: Hariweg 3178. 
DuRANGO: Rose 2337. 
