LABIATE. 637 



Order LABIATE. 



HYPTIS, Jacq. 



H. spicata, Poit. Annual, closely pubescent ; stem obtusely 4-angled, 

 muricate ; leaves ovate, acute, coarsely serrate, long-petioled ; whorls siiort- 

 peduncled, 3-6-flowered, interruptedly racemose; calyx-teeth splne-llke, 

 spreading ; corolla small, purple. — Tampa and Jacksonville, Florida. — Stem 

 20-50 iiigii. 



H. peetinata, Poit. Annual ? pubescent ; stem often muricate ; leaves 

 ovate, acute, serrate, pale beneath, twice as long as the petiole, the upper- 

 most ones bract-like; whorls packed in dense one-sided pectinate spikes; 

 calyx villous at the throat ; corolla minute, pale purple. (H. spicigera, 

 Chapm., not of Lam.) — South Florida. — Stems 20-6° high. 



MENTHA, L. 



M. arvensis, L. (Corn Mint.) Downy and somewhat canescent ; leaves 

 oblong or ovate ; whorls axillary, dense, globose ; calyx-teeth lanceolate. — 

 Georgia. Introduced. 



M. aquatica, L., var. glabrata, Benth. (Bergamot Mint.) Smooth; 

 leaves ovate, sharply serrate; whorls loose, peduncled, single or racemose; 

 calyx-teeth subulate. — Manatee, South Florida (Garber). Introduced. 



PYCNANTHEMUM, Michx. 



P. Torreyi, Benth. Stem more or less pubescent, nearly simple ; leaves 

 (not whitened) linear-lanceolate, acute at both ends, nearly sessile and entire ; 

 calyx-teeth subulate. — Nashville, Tennessee {Dr. Gattiiu/er), and northward. 

 — Stem 2° -3° high. Leaves 2' long. 



SATUREIA, L. Savort. 



Calyx bell-shaped, 10-nerved, 5-toothed. Corolla 2-Iipped, the lower lip 

 3-lobed. Stamens 4, spreading or connivent ; anthers 2-celled. Style un- 

 equally 2-cleft. 



S. (Pycnothymus) rigida, Bartram. Shrubby, villous ; stem assur- 

 gent (1° - 14° long) ; leaves rigid, lanceolate, entire ; spikes capitate, oblong ; 

 calyx minute ; corolla pale purple. — Low sandy pine barrens. South Florida. 



HEDEOMA, Pers. 



H. graveolens, Chapm. Stems clustered, woody at the base, mostly 

 simple, pubescent (1°-1|° high); leaves ovate, cordate, the lowest short- 

 petioled, sparingly serrate ; flowers single, opposite, racemose ; the bracts and 

 2 opposite bractlets oblong, nearly equal ; calyx-teeth ciliate ; sterile anther 

 manifest; seeds ovoid. — Low pine barrens near Apalachicola, Florida. 

 July. 



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