STANDLEY FLORA OF GLACIER PARK. 401 



8. OREOCARYA Greene. 



1. Oreocarya glomerata (Pursh) Greene. Occasional on the east slope at low 

 altitudes, on prairie or dry open slopes or flats. B. C. to Utah and Nebr. — Perennial, 

 15 to 30 cm. high, very hairy, grayish, stout; leaves alternate, the basal ones spatulate, 

 2 to 6 cm. long, obtuse; inflorescence long, narrow, leafy; corolla white, 5 to 8 mm. 

 wide; nutlets narrow, acute, slightly roughened on the back. 



The plant is so densely covered with stiff sharp hairs that it is almost as unpleasant 

 to handle as a nettle. 



9. ALLOCARYA Greene. 



Annuals, much branched; lowest leaves opposite, the others alternate, linear; 

 flowers very small, in one-sided racemes, leafy-bracted; corolla white. 



Plants covered with short stiff hairs 1. A. californica. 



Plants nearly glabrous, with only a few inconspicuous hairs .... 2. A. orthocarpa. 



1. Allocarya californica (Fisch. & Mey.) Greene. East entrance, in wet open 

 ground and about dried-up pools on prairie. Wash, to Calif., N. Mex., and N. Dak. 

 (^4. scopulorum Greene.) — -Plants slender, much branched from the base, spreading; 

 leaves 1.5 to 4 cm. long. 



2. Allocarya orthocarpa Greene. Wet ground at east entrance, Umbach. Mont, 

 to Utah and Wyo. — Plants green, loosely branched; leaves 2 to 5 cm. long. 



The specimens are immature and the determination is not certain. 



76. VERBENACEAE. Vervain Family. 

 1. VERBENA L. Vervain. 

 The cultivated verbenas belong to this genus. 



1. Verbena bracteosa Michx. Carpet vervain. Along the railroad ncc-r Belton, 

 probably introduced. B. C. to Calif., 111., and Fla.— Prostrate hairy plant; leaves 

 opposite, deeply lobed; flowers purplish, small, in dense spikes; corolla 5-lobed; 

 fruit of 4 small nutlets in the bottom of the calyx. 

 An inconspicuous weed. 



77. MENTHACEAE. Mint Family. 



Annual or perennial herbs, often with a strong odor; stems 4-angled; leaves oppo- 

 site, toothed; corolla usually very irregular and 2-lipped; stamens 4 or 2; fruit 

 consisting of 4 small nutlets in the bottom of the calyx. 



Flowers in small dense clusters in the axils of the leaves; corolla not 2-lipped, 4 or 

 5-toothed . 



Anther-bearing stamens 2; plants glabrous or nearly so 1. LYCOPXJS. 



Anther-bearing stamens 4; plants finely hairy 2. MENTHA. 



Flowers all or mostly in spikes or heads at the ends of the branches; corolla 2-lipped. 

 Anther-bearing stamens 2; flowers 2 to 2.5 cm. long, in long-stalked heads. 



3. MONARDA. 

 Anther-bearing stamens 4; flowers 1.5 cm. long or less, mostly iu spikes. 



Calyx lobes very unequal, 3 of them broad and large and 2 narrow and small; 



flowers purple 4. PRUNELLA. 



Calyx lobes not very unequal or, if so, one of the teeth longer than the other 4; 

 flowers white, pink, or pale blue. 

 Plants glabrous or nearly so; one of the calyx lobes larger than the other 4; 

 corolla pale blue, only slightly longer than the calyx. 



5. MOLD A VIC A. 



