136 



LABIATAE. 



VOL. III. 



i. Hedeoma pulegioides (L.) Pers. American Pennyroyal. Fig. 3647. 



Melissa pulegioides L. Sp. PI. 593. 1753. 

 Cunila pulegioides L. Sp. PI. Ed. 2, 30. 1762. 

 Hedeoma pulegioides Pers. Syn. 2: 131. 1807. 



Annual; stem very slender, erect, much branched, 

 finely soft-pubescent, 6'-i8' high, the branches ascend- 

 ing. Leaves ovate to obovate-oblong, petioled, sparingly 

 serrate, mostly obtuse at the apex and narrowed at the 

 base, glabrous, or sparingly pubescent, thin, i'-ii' long, 

 2"-8" wide, the upper smaller; clusters few-flowered, 

 axillary, rather loose; pedicels pubescent, shorter than 

 or equalling the calyx ; calyx pubescent, gibbous, oblong- 

 ovoid in fruit, its 3 upper teeth triangular, acute, not 

 exceeding the 2 subulate hispid lower ones; corolla 

 bluish-purple, about 3" long; rudimentary stamens 

 manifest, capitate at the summit, or rarely anther- 

 bearing. 



In dry fields, Cape Breton Island to Ontario and Minne- 

 sota, Florida, Alabama, Arkansas and Nebraska. Also 

 called tick-weed and squaw-mint. July-Sept. 



2. Hedeoma hispida Pursh. Rough Pennyroyal. Fig. 3648. 



Hedeoma hispida Pursh, Fl. Am. Sept. 414. 

 Hedeoma hirta Nutt. Gen. i: 16. 1818. 



1814. 



Annual; stem erect, branched, slender, 3'-8' high, 

 pubescent, the branches erect-ascending, very leafy 

 and copiously flowered. Leaves linear, entire, firm, 

 sessile, or the lower short-petioled, blunt or subacute 

 at the apex, narrowed at the base, more or less 

 hispid-ciliate but otherwise mostly glabrous, i'-i' 

 long, about i" wide, the lower much shorter and 

 smaller; clusters axillary, numerous, crowded, sev- 

 eral-flowered; pedicels pubescent, shorter than the 

 calyx; bracts subulate, very hispid, about equalling 

 the calyx; calyx oblong, gibbous, hispid, its teeth 

 all subulate, nearly equal in length, upwardly curved 

 in fruit, about one-half as long as the tube, the 2 

 lower ones somewhat narrower and more hispid 

 than the upper; corolla about 3" long, bluish-purple; 

 sterile stamens rudimentary or none. 



On dry plains, Ontario and New York to Saskatche- 

 wan, Illinois, Louisiana, Arkansas and Colorado. May-'Aug. 



3. Hedeoma longiflora Rydb. Long-flowered 

 Pennyroyal. Fig. 3649. 



Hedeoma longiflora Rydb. Bull. Torr. Club 36: 685. 1909. 



Perennial from a woody base, with an ashy down 

 nearly all over; stems much branched, slender, erect, 

 6'-i8 high, the branches ascending. Leaves oblong or 

 linear-oblong, entire, short-petioled or sessile, obtuse at 

 the apex, narrowed at the base, spreading, s"-io" long, 

 i"-2i" wide, the lowest shorter; clusters axillary, 

 loosely few-flowered ; pedicels puberulent, about one- 

 half as long as the calyx and equalling or longer than 

 the subulate bracts; calyx oblong, hirsute, slightly 

 gibbous, its teeth all subulate, upwardly curved and 

 connivent in fruit, the 2 lower nearly^ twice as long 

 as the 3 upper; corolla purple, 4"-6" long; sterile 

 stamens rudimentary or none. 



In dry soil, South Dakota to Nebraska, Kansas and 

 Texas. Included, in our first edition, in H. Drummondn 

 Benth. of the Southwest. April-Aug. 



