90 Contributions from the Gray Herbarium 
Am. Acad. v. 161 (1861-62); Vasey & Rose, Proc. U.S. Nat. Mus. 
xi. 535 (1889); Contr. U. S. Nat. Herb. i. 71 (1890). V. Parishi 
Greene! Bull. Torr. Club ix. 15 (1882); Gray, Syn. Fl. i. pt. 2. 271 
(1884). V. deltoidea Gray var. Parishii (Greene) Vasey & Rose, 
Contr. U.S. Nat. Herb. i. 72 (1890); Hall, Univ. Calif. Publ. Bot. 
iii. 129 (1907). V. deltoidea Gray var. Townsendii Vasey & Rose! 
Proc. U. S. Nat. Mus. xiii. 148 (1890). V. deltoidea Gray var. 
tastensis Brandegee! Zoe v. 161 (1903). V. chenopodina Greene! 
Leafl. Bot. Obs. ii. 154 (1911). — The most variable species of the 
genus. The following varieties, though ill-defined, may in most 
cases be recognized. 
Var. genuina: caule pedunculisque plerumque strigillosis rare 
aspere hispidis; foliis triangulari- vel deltoideo-ovatis dentatis 
rarius subintegris subtus densius pubescentibus pilis asperis vel 
submollibus interdum pilosulis 2.5-6.5 em. longis 1.7-4.7 em. latis; 
eapitulis interdum majoribus 3.2-3.5 cm. latis.— V. deltoidea 
Gray, |. c. — LOWER CALIFORNIA: San Quentin, 1886, Orcutt 
1356 (G., K., Mo., U. S.); Rosarito, 1905, Nelson & Goldman 
7168 (U.S8.); San Andres, 1905, Nelson & Goldman 7155 (U. 8.); 
Lagoon Head, 1889, Palmer 807 (K., U. S.), 887 (G.); Playa 
Maria, 1896, Azthony 65 (Mo.); arroyos, Calmalli, 365 m., 1898, 
Purpus 219 (K., U.8.); Todos Santos, 1890, Brandegee 312 (G.); 
San José del Cabo, 1901, Purpus. (K., Mo., U. S.); La Paz, 1890, 
Palmer 30 (G., K., U. S.); Cape San Lucas, 1859-60, Xantus 60 
(TYPE COLL.: G., K., U.S.).— T. 1. Fie 
Var. TownsEnpiI Vasey & Rose. Pubescence of stem strigillose, 
of branches hispidulous; leaves ovate to oblong-ovate, obtuse or 
rounded at apex, rounded at base or subtruncate, entire, scabrously 
tuberculate-strigillose above, beneath rather softly pilose or hispid- 
pilose or sometimes hispidulous-strigillose, 2.5—-5.7 em. long, 1.1-3.3 
em. wide; heads 1.7-3.8 em. wide. — Vasey & Rose, l. ¢. (1890). — 
LOWER CALIFORNIA: Socorro Island, March 1889, C. H. 
Townsend (type: U.S.), 1897, Anthony 389 (G., K., Mo., U. §.), 
1903, Barkelew 181 (G., Mo., U. S.). — Palmer 828 (1890), from 
Carmen Island, is Pe ictinadiate between this and var. chenopodina, 
but nearer the latter. — T. 1. Fia. 5. 
Var. TASTENSIS Brandegee. Leaves large, very harshly tuber- 
culate-strigillose above, the tubercles persistent, beneath rather 
softly and densely more or less canescently hispidulous-pilosulous, 
