LABIATAB 203 



3- to 6-flowered. Calyx dry, hairy. Cbrotta -white, or ochroleucous, sometimes 



tinged with purple. 



Sab. Gardens, Ac. : Nat. of Southern Europe. PL July. Fr. Sept. 



Obs. This popular medicinal herb has strayed from the gardens, 

 and become partially naturalized, in some localities. Dr. DARWIN, 

 in his Botanic Garden, makes the following allusion to its didyna- 

 mous character: 



" Two knights before thy fragrant altar bend, 

 Adored MELISSA! and two squires attend." 



b. Fertile stamens 2, (by abortion). 



293. HEDEO V IHA, Penoon. 



[Greek, Hedeia Osme, a pleasant odor; from its fragrance.] 

 Calyx ovoid- tubular, 13-nerved, gibbous on the lower side near the 

 base, bilabiate ; throat hairy. Corolla with the upper lip erect, flat, 

 emarginate; lower lip spreading, nearly equally 3-lobed. Stamens 

 2, ascending, the upper pair being mere rudiments, or wanting. 



1. H. pulegioides, Pers. Leaves oblong-ovate, sub-serrate, 



narrowed at base, petiolate ; cymules axillary, each about 3-flow- 



ered. 



PULEGIUM-LIKE HfiDEOMA. American Penny-royal. 



Annual. Stem 6 to 12 inches high, hoary-pubescent, branched. leaves % an 

 inch to an inch long; petioles % to % an inch in length. Cymules somewhat ap- 

 proximated in terminal leafy racemes; bracts linear-lanceolate, scarcely as long as 

 the pedicels; corolla pale blue, with purple spots. Stamens scarcely exserted, 

 the sterile filaments tipt with abortive anthers. 

 Hob. Slaty hills; old fields, &c.: frequent. Fl. July. Fr. Sept. 



Obs. A warmly aromatic little herb, in frequent use as a popu- 

 lar diaphoretic, carminative, &c. This is not the "Penny-royal," 

 of Europe ; but has been so called because of its resemblance to 

 that plant, which is a species of Mint viz. Mentha Puleaium, L. 



\ 4. ANOMALOUS GENERA, f Stamens didynamous. 



294. HYSSO N PUS, 



[Latinized from Ezob ; an ancient Hebrew name.] 



Calyx tubular, 15-nerved, equally 5-toothed ; throat naked. Corolla 

 bilabiate; upper lip erect, flat, emarginate; lower lip spreading, 3- 

 lobed, the middle lobe larger, bifid. Stamens exserted, divergent, 

 the lower pair longer; anther-cells linear, divaricate. 



1. H. OFFICINALIS, L. Leaves linear-lanceolate, sessile; cymulo 

 secund, racemose, or approximated in a terminal spike. 

 OFFICINAL HYSSOPUS. Garden Hyssop. 



Perennial. Stem 18 inches to 2 or 3 feet high, shrubby and much branched at 

 base; branches virgate. Leaves % of an inch to 1% inches long. Cymules sub- 

 sessile, crowded above : Cbrotta bright blue, or sometimes purplish. 

 ffab. Gardens. Nat of Southern Europe. Fl. July. Fr. Sept. 



Obs. Often cultivated as a medicinal herb, and used as a popu- 

 lar febrifuge. 



ft Stamens mostly 2 (by abortion). 



