270 LABIA'iVK. 



calyx bifid; the teeth ovate-oblong, acute, about as long as the corolla. 

 Bartsia pallida Pursk not of Linn. 



White Mountains, N. H. N. to Subarct. Amer. Aug. 7J.. Stem about 12 

 inches high. Floral leaves purple. Flowers yellow, pubescent, in a terminal 

 spike. I follow Bentham in referring the New Hampshire plant to this species, 

 although the description given by Lindley does not entirely warrant such a 

 union. Yeuow Painted Cup. 



22. MELAMPYRUM. Linn. Cow Wheat. 



(From the Greek fts^as, black, and vvpo;, wheat ; the seeds resemble grains of 

 wheat, and are said, when mixed with flour, to make black bread. Hook. Br. Fl.) 



Calyx tubular, 4-cleft or 4-toothed. Corolla ringent or per- 

 sonate ; upper lip compressed, with the margins folded back ; 

 the lower lip a little longer, bi-convex, shortly 3-lobed. Sta- 

 mens 4. Capsule compressed, ovate, oblique or falcate, 2-celled. 

 Seeds usually 2 in each cell. 



M. Americanum Mich.: lower leaves lanceolate or linear-lanceolate; 

 floral ones lanceolate, toothed at the base ; flowers axillary, distinct. M. 

 lineare Lam. and M. latifolium Muhl. 



Woods. Can. to Car. June, July. .Stem 812 inches high, branched 

 at the upper part. Flowers yellow. It varies considerably in the form of the 

 leaves. American Cow-ioheat. 



ORDER XCIII. LABIATE. LABIATES. 



Calyx tubular, persistent, 2-lipped or regularly 5- or 10- 

 toothed. Corolla bilabiate ; the upper undivided or bifid, over- 

 lapping the lower, which is larger and 3-lobed. Stamens 4, 

 didynamous, the 2 upper sometimes wanting. Ovary deeply 

 4-lobed ; style 1, proceeding from the base of the lobes ; stigma 

 bifid. Fruit 1 4 small nuts or achenia enclosed within the 

 persistent calyx. Seeds with little or no albumen. Herbaceous 

 plants or under shrubs. Stem 4-cornered. Leaves opposite, 

 without stipules. Flowers usually in opposite nearly sessile 

 axillary cymes resembling whorls. 



I. MENTHOIDE.E. Corolla somewhat campanulale or funnel-form ; 

 the tube scarcely longer than the calyx ; the limb almost equally 4 5- 

 cleft. Stamens distant, straight or diverging, nearly equal, or the upper 

 pair sometimes wanting. 



1. LYCOPUS. Linn. Water Horehound. 



(From the Greek \VKOS, a wolf, and ~aj, a foot; on account of the fancied 

 resemblance in the cut leaves to a wolf's paw.) 



Calyx tubular, 5-cleft, mouth naked. Corolla tubular-cam- 



