36 NORTH AMERICAN FLORA [VcLUME 33 
36. Franseria lancifolia Rydberg, sp. nov. 
A shrubby perennial; twigs tomentulose when young, becoming purple and at last gray- 
ish; leaves simple, petioled, finely tomentulose on both sides, becoming greener above; blades 
lanceolate or ovate, crenate, 2-3 cm. long, acute; heads in terminal racemes, the staminate 
above, many; involucre broadly turbinate, tomentulose, 6 mm. broad, crenate; paleae of the 
receptacle oblanceolate or spatulate, villous; anthers with acute tips; pistillate heads below 
on the raceme, clustered, 2—3-flowered; fruit 7 mm. long, globose, sparingly hairy and glandu- 
lar-granuliferous; spines all subulate or the lower narrowly lanceolate, slightly curved at the 
apex; beaks 2 or 3, subulate. 
Type collected on Cedros Island, Lower California, 1897, A. W. Anthony 290 (U.S. Nat. Herb. 
no. 313840.). 
DISTRIBUTION: Lower California. 
37. Franseria chenopodifolia Benth. Bot. Voy. Sulph. 26. 1844. 
Gaertneria chenopodifolia Abrams, Bull. N. Y. Bot. Gard. 6: 461. 1910. 
A shrubby perennial; branches white-tomentose when young; leaves simple, petioled, 
densely and closely white-tomentose beneath, slightly tomentose or in age glabrate above; 
blades broadly ovate or deltoid, obtuse or acute at the apex, truncate or broadly cuneate at 
the base, 1-3 em. long, dentate and sometimes slightly 3-lobed, strongly veined and some- 
what triple-ribbed at the base; inflorescence racemiform or paniculate, leafy at the base; stam- 
inate head short-peduncled or subsessile, in a rather dense spike; involucre rotate, 6-7 mm. 
broad, tomentose; lobes about 10, broadly deltoid, broader than long; paleae of the involucre 
narrowly linear-clavate, 1-nerved, villous; corolla slightly glandular; anthers with acute in- 
flexed tips; pistillate heads more or less clustered on the lower part of the spikes, subtended 
by oval bractlike leaves, 2-flowered; fruit depressed-globose, 5-6 mm. long, villous; spines 
20-30, in 3 or 4 series, subulate, about 3 mm. long, strongly flattened below, about half of them 
in the first series and more or less connate at the base, not hooked; beaks 2, subulate, straight, 
not longer than the spines. 
TYPE LOCALITY: Bay of Magdalena [Lower California]. 
DISTRIBUTION: Southern California and Lower California. 
XI. Ambrosioides. Shrubby perennials; leaves simple, lanceolate, dentate; heads racemose; 
staminate involucre with 8-12 triangular lobes; paleae filiform-clavate; anthers with acuminate 
inflexed tips; fruit 2-4-celled, 2-4-flowered; beaks 2-4, subulate, the upper lip strongly hook- 
ed; spines about 100, terete, strongly hooked. 
38. Franseria ambrosioides Cav. Ic. 2: 79. 1793. 
Xanthidium ambrosioides Delpino, Studi Lign. Anem. 63. 1871. 
Gaertneria ambrosioides Kuntze, Rev. Gen. 339. 1891 
A shrubby perennial, 1-2 m. high; branches grayish-hirsute as well as glandular-puberu- 
lent; leaves simple; petioles 1-3 cm. long; blades lanceolate, 4-15 cm. long, truncate, subcor- 
date, or cuneate at the base, acuminate at the apex, coarsely irregularly dentate, rather thick, 
rather strongly reticulate-veined beneath, more or less grayish-hirsutulous; heads in simple 
or somewhat branched racemes at the end of the branches and in the upper leaf-axils; stami- 
nate heads many, above the pistillate ones, on recurved peduncles 4-6 mm. long, saucer-shaped, 
6-8 mm. broad, with 8-12 triangular -lobes, hirsutulous and glandular-puberulent; paleae 
shorter than the tubular membranous corolla; pistillate involucre subtended by a few lanceo- 
late bractlike leaves; fruit 10-30 mm. long; beaks about 4 mm. long, subulate; spines glandular- 
puberulent, 3-4 mm. long. 
TYPE LOCALITY: Mexico. 
DISTRIBUTION: From Arizorfa to Durango, Sinaloa, and Lower California. 
ILLUSTRATIONS: Cav. Ic. pl. 200. 
XII. Ilicifoliae, Shrubby perennials; leaves coarsely dentate, with spine-tipped teeth; 
heads in terminal racemes leafy below; staminate involucre deeply 8—10-cleft, with lanceolate, 
long-acuminate lobes; paleae more or less foliaceous, 3-nerved, hispidulous, oblanceolate, 
longer than the flowers; anthers obtuse; fruit 2-celled, 2-flowered; beaks 2, the upper lobe 
hooked, the lower cleft; spines more than 100, terete, grooved above, hooked, glandular-hirsute 
