156 
Spring Flora of Oklahoma 
sharply serrate. Bractlets narrowed into a terminal bristle. Calyx 
tube pubescent, the lobes plumose-ciliate. Corolla 10"-12" long. 
On plains and prairies. May-September. Oklahoma County. 
IX. HEDEOMA Pers. 
Annual or perennial, strongly aromatic and pungent 
herbs, with entire or crenulate leaves. Flowers blue or 
purple, in axillary clusters, crowded into terminal leafy*- 
bracted spikes or racemes. Calyx tubular, 13-nerved, vil¬ 
lous in the throat, 2-lipped. Corolla 2-lipped, the upper lip 
erect or 2-lobed, the lower spreading, 3-cleft. Perfect sta¬ 
mens 2. Sterile stamens 2. Ovary deeply 4-parted. Style 
2-cleft at summit. Nutlets ovoid, smooth. 
Calyx teeth all nearly equal; annual. 1. H. hispida. 
Teeth of the lower lip nearly twice as long as the upper; 
perennial. 2. H. longiflora. 
1. Hedeoma hispida Pursh. Rough Pennyroyal. Annual. 
Stem 3'-8' high, very leafy, and copiously-flowered. Leaves linear, 
entire, hispid-ciliate, 6"-12" long. Clusters axillary, numerous, 
crowded, several-flowered. Bracts subulate, very hispid. Corolla 
about 3" long, bluish-purple. Sterile stamens rudimentary or none. 
On dry plains. May-August. Frequent. 
2 Hedeoma longiflora Rydb. Long-flowered Pennyroyal. 
Perennial from a woody base. Stem 6'-18' high. Leaves oblong 
or linear-oblong, entire, 5"-10" long, l°-2t6" wide. Clusters axil¬ 
lary, loosely few-flowered. Corolla purple, 4"-6" long. Sterile sta¬ 
mens rudimentary, or none. 
Dry soil. April-August. Common in central part of state. 
FAMILY 78. SOLANACEiE. Potato Family. 
Herbs, shrubs or vines, with alternate or rarely op¬ 
posite, ex-stipulate, entire, dentate, lobed or dissected 
leaves, and perfect, regular or nearly regular, cymose 
flowers. Calyx inferior, gamosepalous, mostly 5-lobed. 
Corolla gamopetalous, rotate, campanulate, funnel-form, 
salver-form or tubular, mostly 5-lobed. Stamens as many 
as the lobes of the corolla and alternate with them, in- 
