STANDLEY TREES AND SHRUBS OF MEXICO 1545 



13d. Viguiera deltoidea chenopodina (Greene) Blake, Contr. Gray Herb n 

 ser. 54: 91. 1918. 



Viguiera chenopodina Greene, Leaflets 2: 154. 1911. 



Baja California; type collected between Santo Domingo and Matancita. 



Leaf blades small, deltoid- or rhombic-ovate, 1.5 to 2.5 cm. long, entire, obtuse 

 •or rounded, canescent-strigillose beneath or on both sides. 



14. Viguiera microphylla Vasey & Rose, Proc. U. S. Nat. Mus. 11: 535. 1890. 

 Northern Baja California; type collected 64 km. inland from Lagoon Head. 

 Shrubby, about 60 cm. high; branches canescent-strigillose; leaf blades ovate, 



8 to 12 mm. long, 5 to 8 mm. wide, entire, canescent-strigillose; heads 2 to 4, 

 long-peduncled, 1.5 cm. wide; involucre 3 to 4 mm. high, canescent-strigillose. 



15. Viguiera lanata (Kellogg) A. Gray, Proc. Amer. Acad. 17: 218. 1882. 

 Bahiopsis lajiata Kellogg, Proc. Cahf. Acad. 2: 35. 1863. 



Cedros Island, Baja California. 



Frutescent at base, 35 to 55 cm. high, densely pannose-tomentose; leaves 

 ■chiefly basal, the blades oval or roundish-ovate, 2.5 to 5.5 cm. long; heads few, 

 4.5 to 6 cm. wide. 



16. Viguiera pinnatilobata (Schultz Bip.) Blake, Contr. Grav Herb. n. ser. 

 54: 95. 1918. 



Zaluzania pinnatilobata Schultz Bip. Flora 47: 219. 1864. 



Gymnolomia pinnatilobata Benth. & Hook.; Hemsl. Biol. Centr. Amer. Bot. 2: 

 163. 1881. 



Puebla and Oaxaca; type from Tehuacdn, Puebla. 



Shrubby, 1 meter high; stem puberulous; leaves chiefly alternate, the blades 

 ovate or deltoid-ovate in outline, 2 to 4 cm. long, deeply pinnatilobate, the lobes 

 1 to 3 pairs, short, entire or shghtly toothed or lobed; heads in cymose panicles 

 of 3 or more, 3.5 cm. wide; involucre sparsely strigose and strigillose; achenes 

 glabrous, epappose. 



17. Viguiera zaluzanioides Blake, Contr. Gray Herb. n. ser. 54: 96. 1918. 

 Known only from the type locality, San Antonio, Oaxaca. 



Shrubby; stem and branches canescently pilosulous-tomentose, subglabrate; 

 leaf blades ovate or triangular-ovate in outline, 2 to 4.5 cm. long, pinnately 

 5 to 7-lobed, canescent-tomentose beneath; heads about 1.4 cm. wide; involucre 

 rather densely pilose; achenes glabrous, epappose. 



18. Viguiera tripartita (Robins. & Greenm.) Blake, Proc. Amer. Acad. 49: 97. 

 1918. 



Gymiiolomia tripartita 'Robins. &, Greenm. Pawev. 5 ovLvn.'fiQi. 111. 50: 154. 1895. 



Oaxaca; type from Cuicatldn. 



Herbaceous (?); stem nearly glabrous; leaf blades lanceolate or lance-ovate in 

 outline, 4 to 6 cm. long, deeply 3-lobed, with short, blunt, entire or slightly lobed 

 divisions, barely subcanescent beneath; heads 2 cm. wide; involucre sparsely 

 strigose; achenes glabrous, epappose. 



19. Viguiera stenoloba Blake, Contr. Gray Herb, n. ser. 54: 97. 1918. 

 Heliomeris tenuifolia A. Gray, Mem. Amer. Acad. n. ser. 4: 84. 1849. Not 



V. tenuifolia Gardn. 1848. 

 Gymnolomia tenuifolia Benth. & Hook.; Hemsl. Biol. Centr. Amer. Bot. 2: 



163. 1881. 

 Chihuahua to Tamaulipas; type from Coahuila. Texas. 



Much-branched shrub 1 meter high; stem glabrous or strigillose; leaf blades 

 ovate in outline, 2.5 to 6 cm. long, divided nearly to midrib into 3 to 7 linear or 

 linear-lanceolate lobes 1 to 5 mm. wide, canescent-strigillose beneath; heads 

 solitary, 1.8 to 3 cm. wide; achenes glabrous, epappose. 



