Spring Flora of Oklahoma 
195 
biennial, 2'-24' high. Leaves spatulate, or the uppermost linear, 
mucronulate, woolly beneath, glabrous or nearly so above. Heads 
2"-2%" high in a terminal, sometimes leafy, spike. Bracts of the 
involucre yellowish-brown or purplish, lanceolate-oblong. Pappus- 
bristles united below. Achenes roughish. 
In dry, sandy soil. May-September. Oklahoma County. 
XII. BERLANDIERA DC. 
Perennial, canescent, or pubescent herbs. Leaves alter¬ 
nate, simple or lyrate-pinnatifid. Heads large, pedunculate, 
with showy, yellow rays. Bracts imbricated in about 3 
series, the outermost small, oblong, the second series oval 
or obovate, the inner membranous. Receptacle nearly flat, 
chaffy. Ray-flowers 5-12, pistillate, fertile. Disk-flowers 
perfect, tubular, sterile. Achenes obovate, compressed, not 
winged. 1-ribbed on the inner side. Pappus obsolete, early 
deciduous or of 2 caducous awns. 
1. Berlandiera lyrata Benth. Lyre-leaved Berlandiera. Fine¬ 
ly whitish-canescent, acaulescent or short-stemmed. Scapes or ped¬ 
uncles 3'-8' long, bearing a solitary head, or rarely 2. Leaves lyrate- 
pinnatifid, lobes mostly crenate. Heads about l'-broad. Inner bracts 
of the involucre much broader than the outer, orbicular. Achenes 
obovate, keeled on the inner face. 
In dry soil. May-August. Frequent. 
XIII. ENGELiMANNIA T. & G. 
Perennial, hirsute herbs. Leaves alternate, pinnatifid. 
Heads large, corymbose, with yellow rays. Involucre hem¬ 
ispheric. Bracts imbricated in two or three series, the 
outer linear, loose, hirsute, ciliate, the inner oval or obo¬ 
vate, appressed. Receptacle flat, chaffy. Rays 8-10, pis¬ 
tillate, fertile. Disk-flowers about as many, perfect, sterile. 
Achenes obovate, compressed, not winged, 1-ribbed on each 
face. Perhaps a persistent, irregularly cleft crown. 
1. Engelmannia pinnatifida T. & G. Engelmannia. Stem l°-3° 
high. Basal leaves slender petioles, 4'-8' long, their lobes lanceolate 
or oblong, dentate or entire. Upper leaves smaller, sessile, the up¬ 
permost sometimes entire, or with a pair of basal lobes. Heads 
usually numerous, about V broad. Outer bracts of the involucre 
somewhat in 2 series, the first linear, the second broadened at the 
base. 
In dry soil. May-August. Frequent, 
