SUNFLOWER FAMILY 149 
Leaves greenish above, densely whitish- or canescent-tomentulose beneath, from crenate-serrate to pin- 
natifid; fruit densely villous or tomentose 
Lédees ene ee sinuate-toothed or pinnatifid; fruit. fusiform, 8-10 a. —_ Somer long-villous, 
bearing about 20 or fewer straight spines. F.e 
Leaves Bay type ioled, crenate-s aa rt Viruit turbinate-subglobose,, ao _ -_ long, the body 
densely bargiies ge tina thickly covered with mostly hooked io. 
. F. chenopodiifolia, 
Leaves o on both sides, ed stem-leaves 6—18 cm. long. 
Leaves merely toothed, acuminate, petiolat 7. F. ambrosioides. 
tae coarsely spiny-t Godied. not pai oS sessile and clasping. 8. : tlicifolia, 
1. Franseria acanthicarpa Smee Coville. Annual Burweed. Fig. 5220. 
Ambrosia eae ibid Hook. Fl. Bor. Amer, 1: 309, 
Fran montana Nutt. Trans. jer Phil. Soc. IY. 5: ee 1840. 
Pasi peparas: Nutt. loc. cit. 
Franseria acanthicarpa Coville, Contr. U.S. Nat. Herb. 4: 129. 1893. 
Gaertneria acanthicarpa Britt. Mem. ce act 5: 332. 1894. 
Franseria palmeri Rydb. N. Amer. FI 
Weedy branching annual, 2-7 dm. hi a stem and branches strigose or hispidulous and often 
spreading-hispid. Leaves slender- petiole d, the blades ovate or deltoid in outline, cm. long, 
shallowly or decaty and usually ternately bi- i tripinnatifid, with obovate to linear, obtuse or acute 
divisions, hook ee and often hirsute, green ve, paler beneath, oo cinereous ; staminate 
rac ually panicled, the pistillate Auiers at their base and in the upper axils ; staminate 
slender peainsted. 2-4 mm. thick, about 15-flowered, the Passi about 6-lobed, 3 upper lobes 
5218. Ambrosia psilostachya 5220. Franseria acanthicarpa 
5219. er pumila 5221. Franseria confertiflora 
