700 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



New Mexico : Knowles; Clayton; Albuquerque; Laguna; north of Santa Fe; Socorro; 

 Lake Valley; Mangas Springs; near White Water; Animas Valley; Organ Mountains; 

 between Ruidoso and Eagle creeks; Gray; Roswell; Nara Visa. Plains and hills, in 

 the Lower and Upper Sonoran zones. 

 2. Berlandiera macrophylla (A. Gray) Jones, Contr. West. Bot. 12: 48. 1908. 



Berlandiera lyrata macrophylla A. Gray, Syn. Fl. I 2 : 243. 1884. 



Type locality: Southern Arizona. 



Range: Western Texas to southern Arizona and adjacent Mexico. 



New Mexico: Queen (Wootori). 



58. ENGELMANNIA A. Gray. 



Coarse perennial herb, 60 cm. high or less, with stout branched stems and rough 

 pinnatifid leaves; heads about 1 cm. high, with bright yellow rays; bracts in 2 series, 

 the outer linear, foliaceous, the inner coriaceous, oval or obovate, with foliaceous 

 tips; achenes obovate, wingless; pappus a persistent crown cleft into 3 or 4 irregular 

 lobes or into a pair of lanceolate scales. 



1. Engelmannia pinnatifida Nutt. Trans. Amer. Phil. Soc. n. ser. 7: 343. 1841. 



Engehnannia texana Scheele, Linnaea 22: 155. 1849. 



Type locality: " Plains of Red River." 



Range: Arkansas and Louisiana to Arizona. 



New Mexico: Gallinas Planting Station; Clayton; Las Vegas; Magdalena; Socorro; 

 Organ Mountains; Gray; Fort Stanton; Redlands; Ruidoso Creek; Nara Visa. Plains 

 and low hills, in the Upper Sonoran Zone. 



59. SANVITALIA Lam. 



Low branched annual with narrowly lanceolate, petiolate, opposite leaves and small 

 heads of greenish yellow flowers; rays short, greenish white, persistent; involucre a 

 single series of dry bracts, these with rigid cuspidate tips; achenes flattened, corky- 

 thickened, those of the ray flowers winged, bearing 3 very short awns or tubercles, 

 those of the disk flowers wingless, usually awnless. 



1. Sanvitalia aberti A. Gray, Mem. Amer. Acad. n. ser. 4: 87. 1849. 



Type locality: Woodlands, between Santa Fe and Pecos, New Mexico. Type 

 collected by Fendler (no. 538). 



Range: Western Texas to southern Arizona. 



New Mexico: Carrizo Mountains; Pecos; Torrance; Pajarito Park"; Black Range; 

 Bear Mountains; Dog Spring; Organ Mountains; Gray; White Mountains; Carlsbad. 

 Low hills and canyons, in the Upper and Lower Sonoran zones. 



60. CRASSINA Scepin. Zinnia. 



Low, densely branched, suffruticose or herbaceous plants with entire, mostly 

 linear, sessile leaves and solitary showy heads terminating the branches; involucre 

 eampanulate to cylindric, with appressed dry firm broad bracts rounded at the summit 

 and often margined; receptacle conic to cylindric; rays broad, firm, persistent; 

 achenes 2 to 4-aristate. 



KEY TO THE SPECIES. 



Rays white, 10 mm. long or less 1. C. pumila. 



Rays bright yellow, 12 to 30 mm. long 2. C. grandiflora. 



1. Crassina pumila (A. Gray) Kuntze, Rev. Gen. PL 1: 331. 1891. 



Zinnia pumila A. Gray, Mem. Amer. Acad. n. ser. 4: 81. 1849. 



Type locality: "High plain near San Juan de la Viqueria, and at Castaniola, in 

 Northern Mexico." 



