818 LABIATE. (MINT FAMILY.) 



31. L.AMIUM, L. DEAD-NETTLE. 



Calyx tubular-bell-shaped, about 5-nerved, with 5 nearly equal awl-pointed 

 teeth. Corolla dilated at the throat ; the upper lip ovate or oblong, arched, 

 narrowed at the base ; the middle lobe of the spreading lower lip broad, notched 

 at the apex, contracted as if stalked at the base ; the lateral ones small, at the 

 margin of the throat. Stamens 4, ascending under the upper lip : anthers ap- 

 proximate in pairs, 2-celled, the cells divergent. Nutlets truncate at the apex. 

 Herbs, decumbent at the base, the lowest leaves small and long-petioled, the 

 middle ones heart-shaped and doubly toothed, the floral similar but nearly ses- 

 sile, subtending the axillary whorled clusters of flowers. (Name from Xat/xos, 

 the throat, in allusion to the ringent corolla.) 



1. L. AMPLEXICAULE, L. Leaves rounded, deeply crenate-toothed or cut, 

 the upper ones clasping ; corolla (purple) elongated, upper lip bearded, the lower 

 spotted; lateral lobes truncate. Cultivated grounds. (Adv. from Eu.) 



2. L. PURPUREUM, L. Leaves roundish or oblong, heart-shaped, crenate- 

 toothed, all petioled. Cult, groundf, Pennsylvania. (Adv. from Eu.) 



32. BALL OTA, L. FETID HOREHOUND. 



Calyx nearly funnel-form, the 10-ribbed tube expanded above into a spreading 

 regular border, with 5-10 teeth. Anthers exserted beyond the tube of the co- 

 rolla, approximate in pairs. Otherwise much as in Marrubium. (The Greek 

 name, of uncertain origin.) 



1. B. NiGRA, L. (BLACK HOREHOUND.) More or less hairy, but green, 

 erect ; leaves ovate, toothed ; whorls many-flowered, dense ; calyx-teeth 5, long- 

 er than the tube of the purplish corolla. 1J. Waste places, Massachusetts 

 and Connecticut: scarce. (Adv. from Eu.) 



33. PIILOMIS, L. JERUSALEM SAGE. 



Calyx tubular, 5 - 10-ribbed, truncate or equally 5-toothed. Upper lip of the 

 corolla arched ; the lower spreading, 3-cleft. Stamens 4, ascending and approx- 

 imate in pairs under the upper lip ; the filaments of the upper pair with an awl- 

 shaped appendage at the base, longer than the others in P. tuberosa, &c. : anther- 

 cells divergent and confluent. Leaves rugose. Whorls dense and many-flow- 

 ered, axillary, remote, bracted. (An old Greek name of a woolly species, 

 of obscure derivation.) 



1. P. TUBER6SA, L. Tall (3 -5 high), nearly smooth; leaves ovate- 

 heart-stiaped, crenate, petioled ; the floral oblong-lanceolate ; bracts awl-shaped, 

 hairy ; upper lip of the purple corolla densely bearded with white hairs on the 

 inside. H. Shore of Lake Ontario near Kochester, Prof. Hadley, Prof. Dewey. 

 (Adv. from Eu.) 



The familiar cultivated plants of this family, not mentioned above, are the 

 SWEET BASIL (Ocymum Basilicum) ; the LAVENDER (Lavdndula vera)', and 

 the SWEEE MARJORAM (Origanum Major&na). 



