706 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
KEY TO THE SPECIES, 
Disk in fruit oblong, about 1 cm. long.............-. 1. R, tagetes. 
Disk in fruit cylindric, 2 to 4 cm. long. 
Rays yellow...............-2-22--2-22-0-2220000- 2. R. columnifera. 
Rays at least in part brownish purple... ........ 2a. R.columnifera pulcherrima. 
1. Ratibida tagetes (James) Barnhart, Bull. Torrey Club 24: 410. 1897. 
Rudbeckia tagetes James in Long, Exped. 2: 68. 1823. 
Lepachys tagetes A. Gray, U. S. Rep. Expl. Miss. Pacif. 4: 103. 1856. 
TYPE LocaLity: About 15 miles southwest of La Junta, Colorado. 
RanGeE: Colorado and Kansas to Texas and Arizona. 
New Mexico: Santa Fe; Nara Visa; Las Vegas; Albuquerque; Sandia Mountains; 
Cross L Ranch; Gallinas Mountains; Estancia; Socorro; Mesilla Valley; Queen; Gray. 
Plains and river valleys, in the Lower and Upper Sonoran zones. 
2. Ratibida columnifera (Nutt.) Woot. & Standl. 
Rudbeckia columnifera Nutt. Fraser’s Cat. no. 75. 1813. 
Rudbeckia columnaris Pursh, Fl. Amer. Sept. 575. 1814. 
Ratibida columnaris D. Don in Sweet, Brit. Flower Gard. II. 4: pl, 861, 1838. 
Lepachys columnaris Torr. & Gray, Fl. N. Amer. 2: 313. 1842. 
Type Locauiry: Upper Louisiana. 
Rance: British Columbia and Saskatchewan to Arizona, Texas, and Tennessee. 
New Mexico: Sierra Grande; mountains west of Grants Station; Santa Fe and Las 
Vegas mountains; Clayton; Lower Plaza; White and Sacramento mountains. Plains 
and low hills, in the Upper Sonoran and Transition zones, 
2a. Ratibida columnifera pulcherrima (DC.) Woot. & Standl. 
Obeliscaria pulcherrima DC. Prodr. 5: 559, 1836. 
Ratibida columnaris pulcherrima D. Don in Sweet, Brit. Flower Gard. IT. 4: pl. 361. 
1830. 
Lepachys columnaris pulcherrima Torr. & Gray, Fl. N. Amer. 2: 313. 1842. 
Type Locauity: ‘In Mexici province. Texas ad San-Fernando de Bejar, et in 
sinu Spiritus-Sancti ad lacum Sancti-Nicolai.”’ 
Rance: With the species, but more common in New Mexico. 
New Mexico: Dulce; Chama; Pecos; Santa Antonita; Ramah; near Las Vegas; 
mountains west of Grants Station; El Cedro; Tucumcari; Mogollon Mountains; White 
Mountains; Buchanan; Redlands; Queen; Knowles; Artesia. 
This is a mere form of the type and hardly deserves a name. Both forms almost 
invariably occur together, although occasionally they grow alone. It is possible to 
find in a single patch every possible gradation in the color of the rays from pure bright 
yellow to solid brown-purple. The same variation in color occurs in R. tagetes, but 
since that has very small and inconspicuous rays no one has yet thought to distinguish 
the various forms by name. 
70. DRACOPIS Cass. 
Annual, 30 to 60 cm. high, with somewhat glaucous, entire or serrate, sessile or 
clasping leaves; involucre of a few small foliaceous bracts; rays oblong, yellow; disk 
brownish, cylindric in age; achenes small, minutely rugulose, nearly terete, not 
angled; pappus none. 
1. Dracopis amplexicaulis (Vahl) Cass. Dict. Sci. Nat. 35: 273. 1836, 
Rudbeckia amplexicaulis Vahl, Skrivt. Naturh.-Selsk. (Kjgbenhavn) 2?: 29. pl. 4. 
1793. 
Type Locatity: ‘‘Habitat in Louisiana?”’ 
RanGE: Missouri and Louisiana to Texas and New Mexico. 
New Mexico: Las Cruces (Wooton). Low ground. 
Collected but once in the Mesilla Valley, where it had probably been introduced, 
