GENUS 7. 



MINT FAMILY. 



in 



didynamous, included, the anterior pair the longer; anthers 2-celled, or those of the anterior 

 pair more or less imperfect, the sacs divaricate. Style 2-cleft at the summit, lobes obtuse. 

 Ovary 4-lobed. Nutlets obovoid, smooth. [Greek, iron, referring to its nedicinal use.] 



About 45 species, native of the Old World, most numerous 

 in the Orient. Type species : Sideritis hirsuta L. 



i. Sideritis romana L. Simple-beaked Iron-wort. 

 Fig- 3589. 



Sideritis romana L. Sp. PI. 575. 1753. 



Annual, softly pubescent with spreading hairs, the stem 

 erect, 4'-: tall, usually branched. Leaves obovate to 

 oblong, i'-ii' long, crenate, sessile or nearly FJ, ultimately 

 somewhat veiny; clusters few-flowered; flowers white or 

 pinkish; calyx-teeth shorter than the tube, the middle one 

 of the upper lip ovate, all subulate-tipped ; corolla slightly 

 exceeding the calyx, the middle lobe of the lower lip 

 reniform. 



In fields, southeastern Pennsylvania. Naturalized from the 

 Mediterranean region. Also in Bermuda. June-Aug. 



8. AGASTACHE Clayt.; Gron. Fl. Virg. 88. 1762. 



[VLECKIA Raf. Med. Rep. (II.) 5: 308. 1808.] 

 [LOPHANTHUS Benth. Bot. Reg. 15:. under pi. 1282. 1829. Not Adans. 1763.] 



Tall erect perennial herbs, with serrate, mainly ovate, petioled leaves, and yellowish 

 purplish or blue flowers, verticillate-clustered in thick dense or interrupted bracted terminal 

 spikes. Calyx narrowly campanulate, somewhat oblique, slightly 2-lipped, 5-toothed, the 

 teeth of the upper lip somewhat larger than those of the lower, or all about equal. Corolla 

 strongly 2-lipped, the tube as long as the calyx ; upper lip erect, 2-lobed ; lower lip spreading, 

 3-lobed, its middle lobe broader than the lateral ones and crenulate. Stamens 4, all anther- 

 bearing, didynamous, the upper pair the longer; anthers 2-celled, their sacs nearly parallel. 

 Ovary deeply 4-parted ; style 2-cleft at the summit. Nutlets ovoid, smooth. [Greek, many spikes.] 



About 8 species, natives of North America. Besides the following, 2 or 3 others occur in the 

 western United States. Type species : Hyssopus nepetoides L. 



Glabrous or very nearly so, stout ; corolla greenish-yellow. i. A. nepetoides. 



Pubescent, stout ; corolla purplish ; leaves green both sides. 2. A. scrophulariaefolia. 



Glabrous or slightly pubescent, slender ; corolla blue; leaves pale beneath. 3. A. anethiodora. 



i. Agastache nepetoides (L.) Kuntze. 

 Catnep Giant-Hyssop. Fig. 3590. 



Hyssopus nepetoides L. Sp. PI. 569. 1753. 

 Lophanthus nepetoides Benth. Bot. Reg. under 



pi. 1282. 1829. 



Vleckia nepetoides Raf. Fl. Tell. 3: 89. 1836. 

 'A. nepetoides Kuntze, Rev. Gen. PI. 511. 1891. 



Glabrous, or slightly puberulent; stem 

 stout, 2-5 high, branched, at least above, 

 sharply 4-angled. Leaves ovate or ovate- 

 oblong, acuminate or acute at the apex, 

 rounded, cordate or the upper narrowed at 

 the base, mostly thin, coarsely dentate, 2 f -6' 

 long; spikes 3'-i8' long, usually very dense; 

 petioles of the lowest leaves often 2' long; 

 bracts ovate, acute or acuminate ; calyx- 

 teeth oblong or ovate-oblong, obtuse or sub- 

 acute, sometimes purplish ; corolla greenisli 

 yellow, about 4" long, scarcely exceeding 

 the calyx. 



In woods and thickets, Quebec and Vermont 

 to South Dakota, south to Georgia, Tennessee, 

 Kansas and Arkansas. July-Sept. 



