34 NORTH AMERICAN FLORA [VOLUME 33 
villous tips; anthers with acute or acuminate tips; fruit 2-celled, 2-flowered; beaks 2, stout; 
spines hooked. 
29. Franseria malvacea Rydberg, sp. nov. 
A shrub, with terete brown branches; young twigs finely grayish-puberulent, in age gla- 
brate; leaves alternate, petioled; blades broadly ovate, 2-10 cm. long, cuneate at the base, 
acute or acuminate, 3—5-ribbed, more or less distinctly 3-7-lobed and doubly serrate, minutely 
puberulent above, grayish-tomentose beneath; staminate heads in terminal racemes; involucre 
saucer-shaped, tomentose-canescent, 5 mm. broad, 5—8-crenate; paleae of the receptacle fili- 
form, with villous spatulate tips; corolla pilose; style as long as the stamens; pistillate heads 
few in the upper axils, 2-flowered; fruit glandular-granulifercus, 7-8 mm. long; spines narrowly 
linear-lanceolate, distinctly grooved to near the hooked tip, 2 mm. long; beaks two, of about 
the same lengths. 
Type collected at Culiacan, 1891, E. Palmer 1770 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Sinaloa and Sonora to San Luis Potosi. 
30. Franseria cordifolia A. Gray; Syn. Fl. N. Am. 1?: 445. 1884. 
Gaertneria cordifolia Kuntze, Rev. Gen. 339. 1891. 
A more or less shrubby perennial, 6-10 dm. high; branches white-tomentose when young; 
leaves with petioles about as long as the blades; blades cordate in outline, more or less 3-7-lobed 
and dentate, 2-4 cm. long, cinereous-tomentose, densely so beneath, less so above; heads 
racemose at the ends of the branches, the staminate ones several, above the pistillate ones, 
short-peduncled; involucre saucer-shaped, tomentose, about 5 mm. broad; paleae of the re- 
ceptacle linear-clavate, villous; corolla pilose; lobes brown; pistillate heads few, more or less 
clustered on the lower part of the raceme or on short axillary branches, subtended by oblong 
to ovate small leaves, 2-flowered; fruic ellipsoid, 7-8 mm. long, densely glandular; beaks 
elongate-conic, somewhat united, hooked at the end; spines 15-18, in 3 or rarely 4 series, 
glandular, spreading, thick, broadened at the base, somewhat hooked. 
TYPE LOCALITY: Southern Arizona, in the mountains near Tucson. 
DISTRIBUTION: Arizona, Sonora, and Sinaloa. 
31. Franseria divaricata Brand. Proc. Calif. Acad. II. 2: 171. 
1889. 
A shrub, 3-6 dm. high, much branched; young twigs white-tomentose; leaves petioled; 
blades minutely canescent or when young white, 2-6 cm. long, broadly ovate or cordate, 
deeply 3-5-lobed; lobes doubly serrate or dentate, the base cordate or decurrent-cuneate; 
staminate heads in racemes ending the branches, short-peduncled, 20-30 flowered; involucre 
tomentulose or glabrace, 5—10-toothed, 5 mm. broad; paleae minute, filiform, with spatulate 
villous tips; corolla puberulent; pistillate heads in small clusters below the staminate ones, 
usually 2-flowered; fruit minutely puberulent and glandular-granuliferous, 6-8 mm. long, 
broadly obovoid; beaks 2, stout, slightly longer than the spines; spines 25-30, 2 mm. long, 
subulate, hooked. 
TYPE LOCALITY: San Gregorio, Lower California. 
DISTRIBUTION: Lower California. 
IX. Arborescentes. Shrubby perennials; leaves ovate or lanceolate, pinnately cleft; 
heads paniculate; staminate involucre with 5—12 ovate to lanceolate or triangular lobes; paleae 
subulate or filiform, pubescent; fruit 2-celled, 2-flowered; beaks 2, subulate, straight or some- 
what hooked; spines subulate, hooked or almost straight. 
32. Franseria arborescens Brand. Zoe 5: 162. 1903. 
Franseria carduacea Greene, Leaflets 2: 156. 1911. 
A shrub or small tree, 3-5 m. high, canescent-pubescent; leaves alternate; petioles 2-3 
cm. long; blades thick, up to 15 cm. long, 5-8 cm. wide, ovate in outline, long-acuminate, 
deeply pinnately cleft, with 3-7 coarsely serrate lobes, pubescent beneath, greener and puber- 
